/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.10.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:25:10,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:25:10,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:25:10,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:25:10,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:25:10,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:25:10,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:25:10,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:25:10,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:25:10,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:25:10,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:25:10,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:25:10,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:25:10,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:25:10,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:25:10,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:25:10,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:25:10,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:25:10,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:25:10,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:25:10,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:25:10,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:25:10,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:25:10,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:25:10,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:25:10,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:25:10,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:25:10,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:25:10,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:25:10,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:25:10,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:25:10,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:25:10,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:25:10,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:25:10,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:25:10,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:25:10,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:25:10,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:25:10,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:25:10,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:25:10,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:25:10,936 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 01:25:10,970 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:25:10,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:25:10,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:25:10,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:25:10,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:25:10,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:25:10,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:25:10,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:25:10,974 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:25:10,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:25:10,974 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:25:10,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:25:10,976 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:25:10,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:25:10,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:25:10,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:25:10,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:25:10,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:25:10,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:25:10,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:25:10,978 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:25:10,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:25:11,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:25:11,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:25:11,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:25:11,207 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:25:11,208 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:25:11,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.10.cil-1.c [2023-03-31 01:25:12,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:25:12,630 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:25:12,631 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.10.cil-1.c [2023-03-31 01:25:12,641 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7269fc64b/83aff763aa71474788d7b3153d5d1ec0/FLAGd881c522d [2023-03-31 01:25:12,655 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7269fc64b/83aff763aa71474788d7b3153d5d1ec0 [2023-03-31 01:25:12,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:25:12,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:25:12,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:25:12,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:25:12,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:25:12,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:25:12" (1/1) ... [2023-03-31 01:25:12,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6332a09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:12, skipping insertion in model container [2023-03-31 01:25:12,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:25:12" (1/1) ... [2023-03-31 01:25:12,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:25:12,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:25:12,842 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.10.cil-1.c[671,684] [2023-03-31 01:25:13,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:25:13,018 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:25:13,025 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.10.cil-1.c[671,684] [2023-03-31 01:25:13,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:25:13,108 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:25:13,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13 WrapperNode [2023-03-31 01:25:13,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:25:13,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:25:13,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:25:13,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:25:13,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:25:13,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:25:13,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:25:13,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:25:13,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (1/1) ... [2023-03-31 01:25:13,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:25:13,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:25:13,256 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 01:25:13,273 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 01:25:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:25:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:25:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-03-31 01:25:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-03-31 01:25:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-03-31 01:25:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-03-31 01:25:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-03-31 01:25:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-03-31 01:25:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-03-31 01:25:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-03-31 01:25:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:25:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:25:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:25:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:25:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:25:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-03-31 01:25:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-03-31 01:25:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-03-31 01:25:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-03-31 01:25:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-03-31 01:25:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-03-31 01:25:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-03-31 01:25:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-03-31 01:25:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-03-31 01:25:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2023-03-31 01:25:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2023-03-31 01:25:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2023-03-31 01:25:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-03-31 01:25:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:25:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-03-31 01:25:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-03-31 01:25:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-03-31 01:25:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-03-31 01:25:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-03-31 01:25:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-03-31 01:25:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-03-31 01:25:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-03-31 01:25:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-03-31 01:25:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-03-31 01:25:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-03-31 01:25:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:25:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:25:13,479 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:25:13,481 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:25:14,272 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:25:14,282 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:25:14,282 INFO L302 CfgBuilder]: Removed 13 assume(true) statements. [2023-03-31 01:25:14,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:25:14 BoogieIcfgContainer [2023-03-31 01:25:14,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:25:14,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:25:14,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:25:14,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:25:14,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:25:12" (1/3) ... [2023-03-31 01:25:14,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1459c00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:25:14, skipping insertion in model container [2023-03-31 01:25:14,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:13" (2/3) ... [2023-03-31 01:25:14,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1459c00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:25:14, skipping insertion in model container [2023-03-31 01:25:14,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:25:14" (3/3) ... [2023-03-31 01:25:14,291 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.10.cil-1.c [2023-03-31 01:25:14,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:25:14,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:25:14,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:25:14,396 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;@2fc990ff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:25:14,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:25:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 421 states, 324 states have (on average 1.623456790123457) internal successors, (526), 340 states have internal predecessors, (526), 57 states have call successors, (57), 38 states have call predecessors, (57), 38 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-03-31 01:25:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-03-31 01:25:14,436 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:14,437 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] [2023-03-31 01:25:14,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:14,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:14,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1405235129, now seen corresponding path program 1 times [2023-03-31 01:25:14,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:14,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476412951] [2023-03-31 01:25:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:14,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 01:25:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:25:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-03-31 01:25:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-03-31 01:25:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:25:15,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:15,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476412951] [2023-03-31 01:25:15,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476412951] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:15,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:15,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:25:15,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969860931] [2023-03-31 01:25:15,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:15,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:25:15,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:25:15,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:25:15,588 INFO L87 Difference]: Start difference. First operand has 421 states, 324 states have (on average 1.623456790123457) internal successors, (526), 340 states have internal predecessors, (526), 57 states have call successors, (57), 38 states have call predecessors, (57), 38 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:20,351 INFO L93 Difference]: Finished difference Result 1089 states and 1782 transitions. [2023-03-31 01:25:20,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 01:25:20,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 204 [2023-03-31 01:25:20,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:20,377 INFO L225 Difference]: With dead ends: 1089 [2023-03-31 01:25:20,378 INFO L226 Difference]: Without dead ends: 671 [2023-03-31 01:25:20,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:25:20,391 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1656 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 2811 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 3205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 2811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:20,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 44 Invalid, 3205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [394 Valid, 2811 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-03-31 01:25:20,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-03-31 01:25:20,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 412. [2023-03-31 01:25:20,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 319 states have (on average 1.542319749216301) internal successors, (492), 333 states have internal predecessors, (492), 57 states have call successors, (57), 38 states have call predecessors, (57), 35 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-03-31 01:25:20,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 602 transitions. [2023-03-31 01:25:20,625 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 602 transitions. Word has length 204 [2023-03-31 01:25:20,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:20,626 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 602 transitions. [2023-03-31 01:25:20,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 602 transitions. [2023-03-31 01:25:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-03-31 01:25:20,633 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:20,637 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] [2023-03-31 01:25:20,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:25:20,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:20,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:20,638 INFO L85 PathProgramCache]: Analyzing trace with hash -815499013, now seen corresponding path program 1 times [2023-03-31 01:25:20,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:20,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325019473] [2023-03-31 01:25:20,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:20,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 01:25:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:25:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-03-31 01:25:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-03-31 01:25:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:21,128 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 01:25:21,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:21,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325019473] [2023-03-31 01:25:21,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325019473] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:21,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:21,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:25:21,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426656120] [2023-03-31 01:25:21,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:21,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:25:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:21,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:25:21,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:25:21,133 INFO L87 Difference]: Start difference. First operand 412 states and 602 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:25,470 INFO L93 Difference]: Finished difference Result 1060 states and 1616 transitions. [2023-03-31 01:25:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:25:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 204 [2023-03-31 01:25:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:25,476 INFO L225 Difference]: With dead ends: 1060 [2023-03-31 01:25:25,477 INFO L226 Difference]: Without dead ends: 671 [2023-03-31 01:25:25,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:25:25,479 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1657 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2763 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 2763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:25,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 15 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 2763 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-03-31 01:25:25,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-03-31 01:25:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 412. [2023-03-31 01:25:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 319 states have (on average 1.5391849529780564) internal successors, (491), 333 states have internal predecessors, (491), 57 states have call successors, (57), 38 states have call predecessors, (57), 35 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-03-31 01:25:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 601 transitions. [2023-03-31 01:25:25,604 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 601 transitions. Word has length 204 [2023-03-31 01:25:25,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:25,606 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 601 transitions. [2023-03-31 01:25:25,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:25,607 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 601 transitions. [2023-03-31 01:25:25,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-03-31 01:25:25,611 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:25,611 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] [2023-03-31 01:25:25,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:25:25,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:25,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1287838659, now seen corresponding path program 1 times [2023-03-31 01:25:25,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:25,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798159684] [2023-03-31 01:25:25,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:25,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 01:25:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:25:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-03-31 01:25:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-03-31 01:25:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:26,400 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 01:25:26,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:26,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798159684] [2023-03-31 01:25:26,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798159684] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:26,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:26,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:25:26,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458981096] [2023-03-31 01:25:26,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:26,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:25:26,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:25:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:25:26,406 INFO L87 Difference]: Start difference. First operand 412 states and 601 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:31,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:31,579 INFO L93 Difference]: Finished difference Result 1669 states and 2563 transitions. [2023-03-31 01:25:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:25:31,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 204 [2023-03-31 01:25:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:31,589 INFO L225 Difference]: With dead ends: 1669 [2023-03-31 01:25:31,589 INFO L226 Difference]: Without dead ends: 1285 [2023-03-31 01:25:31,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:25:31,597 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4288 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3102 mSolverCounterSat, 952 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4337 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 4054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 952 IncrementalHoareTripleChecker+Valid, 3102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:31,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4337 Valid, 15 Invalid, 4054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [952 Valid, 3102 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-03-31 01:25:31,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2023-03-31 01:25:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 806. [2023-03-31 01:25:31,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 638 states have (on average 1.5532915360501567) internal successors, (991), 665 states have internal predecessors, (991), 100 states have call successors, (100), 68 states have call predecessors, (100), 67 states have return successors, (100), 97 states have call predecessors, (100), 96 states have call successors, (100) [2023-03-31 01:25:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1191 transitions. [2023-03-31 01:25:31,918 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1191 transitions. Word has length 204 [2023-03-31 01:25:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:31,919 INFO L495 AbstractCegarLoop]: Abstraction has 806 states and 1191 transitions. [2023-03-31 01:25:31,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1191 transitions. [2023-03-31 01:25:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-03-31 01:25:31,921 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:31,921 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] [2023-03-31 01:25:31,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:25:31,922 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:31,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:31,923 INFO L85 PathProgramCache]: Analyzing trace with hash -190219591, now seen corresponding path program 1 times [2023-03-31 01:25:31,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:31,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326222601] [2023-03-31 01:25:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:31,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 01:25:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:25:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-03-31 01:25:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-03-31 01:25:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:32,621 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 01:25:32,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326222601] [2023-03-31 01:25:32,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326222601] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:32,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:32,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:25:32,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081732973] [2023-03-31 01:25:32,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:32,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:25:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:32,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:25:32,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:25:32,623 INFO L87 Difference]: Start difference. First operand 806 states and 1191 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:41,881 INFO L93 Difference]: Finished difference Result 3270 states and 5017 transitions. [2023-03-31 01:25:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:25:41,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 204 [2023-03-31 01:25:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:41,894 INFO L225 Difference]: With dead ends: 3270 [2023-03-31 01:25:41,894 INFO L226 Difference]: Without dead ends: 2492 [2023-03-31 01:25:41,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:25:41,898 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3256 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7465 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 8098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 7465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:41,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 16 Invalid, 8098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 7465 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-03-31 01:25:41,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2023-03-31 01:25:42,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 1622. [2023-03-31 01:25:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1282 states have (on average 1.5382215288611545) internal successors, (1972), 1355 states have internal predecessors, (1972), 199 states have call successors, (199), 127 states have call predecessors, (199), 140 states have return successors, (229), 198 states have call predecessors, (229), 195 states have call successors, (229) [2023-03-31 01:25:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2400 transitions. [2023-03-31 01:25:42,328 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2400 transitions. Word has length 204 [2023-03-31 01:25:42,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:42,329 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 2400 transitions. [2023-03-31 01:25:42,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:42,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2400 transitions. [2023-03-31 01:25:42,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-03-31 01:25:42,332 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:42,332 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] [2023-03-31 01:25:42,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:25:42,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:42,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:42,333 INFO L85 PathProgramCache]: Analyzing trace with hash 337174459, now seen corresponding path program 1 times [2023-03-31 01:25:42,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:42,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067242945] [2023-03-31 01:25:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:42,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 01:25:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:25:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-03-31 01:25:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-03-31 01:25:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,895 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 01:25:42,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:42,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067242945] [2023-03-31 01:25:42,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067242945] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:42,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:42,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:25:42,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629052545] [2023-03-31 01:25:42,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:42,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:25:42,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:25:42,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:25:42,899 INFO L87 Difference]: Start difference. First operand 1622 states and 2400 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:51,668 INFO L93 Difference]: Finished difference Result 4904 states and 7544 transitions. [2023-03-31 01:25:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:25:51,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 204 [2023-03-31 01:25:51,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:51,685 INFO L225 Difference]: With dead ends: 4904 [2023-03-31 01:25:51,685 INFO L226 Difference]: Without dead ends: 3735 [2023-03-31 01:25:51,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:25:51,690 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3171 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7604 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 8244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 7604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:51,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 16 Invalid, 8244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 7604 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-03-31 01:25:51,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2023-03-31 01:25:52,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 2404. [2023-03-31 01:25:52,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 1914 states have (on average 1.544932079414838) internal successors, (2957), 2013 states have internal predecessors, (2957), 285 states have call successors, (285), 187 states have call predecessors, (285), 204 states have return successors, (327), 286 states have call predecessors, (327), 281 states have call successors, (327) [2023-03-31 01:25:52,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3569 transitions. [2023-03-31 01:25:52,357 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3569 transitions. Word has length 204 [2023-03-31 01:25:52,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:52,357 INFO L495 AbstractCegarLoop]: Abstraction has 2404 states and 3569 transitions. [2023-03-31 01:25:52,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:25:52,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3569 transitions. [2023-03-31 01:25:52,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-03-31 01:25:52,363 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:52,363 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] [2023-03-31 01:25:52,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:25:52,363 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:52,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:52,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1031286151, now seen corresponding path program 1 times [2023-03-31 01:25:52,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:52,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412634374] [2023-03-31 01:25:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:52,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 01:25:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:25:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-03-31 01:25:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-03-31 01:25:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:52,968 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 01:25:52,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:52,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412634374] [2023-03-31 01:25:52,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412634374] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:52,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:52,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:25:52,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611655948] [2023-03-31 01:25:52,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:52,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:25:52,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:52,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:25:52,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:25:52,971 INFO L87 Difference]: Start difference. First operand 2404 states and 3569 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:26:03,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:03,392 INFO L93 Difference]: Finished difference Result 8031 states and 12339 transitions. [2023-03-31 01:26:03,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:26:03,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 204 [2023-03-31 01:26:03,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:03,422 INFO L225 Difference]: With dead ends: 8031 [2023-03-31 01:26:03,422 INFO L226 Difference]: Without dead ends: 6122 [2023-03-31 01:26:03,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:26:03,431 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2770 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 8221 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 8221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:03,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2819 Valid, 17 Invalid, 8750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 8221 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-03-31 01:26:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2023-03-31 01:26:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 3969. [2023-03-31 01:26:04,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3969 states, 3179 states have (on average 1.5498584460522178) internal successors, (4927), 3330 states have internal predecessors, (4927), 457 states have call successors, (457), 307 states have call predecessors, (457), 332 states have return successors, (529), 462 states have call predecessors, (529), 453 states have call successors, (529) [2023-03-31 01:26:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3969 states to 3969 states and 5913 transitions. [2023-03-31 01:26:04,647 INFO L78 Accepts]: Start accepts. Automaton has 3969 states and 5913 transitions. Word has length 204 [2023-03-31 01:26:04,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:04,647 INFO L495 AbstractCegarLoop]: Abstraction has 3969 states and 5913 transitions. [2023-03-31 01:26:04,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:26:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3969 states and 5913 transitions. [2023-03-31 01:26:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-03-31 01:26:04,652 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:04,652 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] [2023-03-31 01:26:04,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:26:04,653 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:04,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:04,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1760582839, now seen corresponding path program 1 times [2023-03-31 01:26:04,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:04,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181371064] [2023-03-31 01:26:04,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:04,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 01:26:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:26:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:26:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:26:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:26:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-03-31 01:26:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-03-31 01:26:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:05,261 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 01:26:05,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:05,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181371064] [2023-03-31 01:26:05,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181371064] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:05,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:05,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:26:05,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192165068] [2023-03-31 01:26:05,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:05,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:26:05,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:05,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:26:05,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:26:05,263 INFO L87 Difference]: Start difference. First operand 3969 states and 5913 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)