/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/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:06:58,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:06:58,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:06:58,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:06:58,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:06:58,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:06:58,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:06:58,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:06:58,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:06:58,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:06:58,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:06:58,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:06:58,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:06:58,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:06:58,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:06:58,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:06:58,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:06:58,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:06:58,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:06:58,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:06:58,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:06:58,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:06:58,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:06:58,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:06:58,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:06:58,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:06:58,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:06:58,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:06:58,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:06:58,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:06:58,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:06:58,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:06:58,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:06:58,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:06:58,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:06:58,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:06:58,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:06:58,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:06:58,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:06:58,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:06:58,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:06:58,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 05:06:58,826 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:06:58,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:06:58,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:06:58,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:06:58,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:06:58,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:06:58,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:06:58,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:06:58,829 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:06:58,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:06:58,830 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:06:58,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:06:58,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:06:58,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:06:58,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:06:58,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:06:58,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:06:58,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:06:58,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:06:58,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:06:58,833 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:06:58,834 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:06:59,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:06:59,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:06:59,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:06:59,065 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:06:59,065 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:06:59,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c [2023-04-02 05:07:00,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:07:00,532 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:07:00,533 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c [2023-04-02 05:07:00,546 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8aba42d/8137447347204d749954e59d3e1171e4/FLAGeda8080e1 [2023-04-02 05:07:00,565 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8aba42d/8137447347204d749954e59d3e1171e4 [2023-04-02 05:07:00,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:07:00,568 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:07:00,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:07:00,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:07:00,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:07:00,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:07:00" (1/1) ... [2023-04-02 05:07:00,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6935f9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:00, skipping insertion in model container [2023-04-02 05:07:00,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:07:00" (1/1) ... [2023-04-02 05:07:00,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:07:00,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:07:01,000 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/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c[60917,60930] [2023-04-02 05:07:01,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:07:01,013 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:07:01,090 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/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c[60917,60930] [2023-04-02 05:07:01,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:07:01,115 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:07:01,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01 WrapperNode [2023-04-02 05:07:01,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:07:01,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:07:01,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:07:01,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:07:01,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,258 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:07:01,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:07:01,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:07:01,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:07:01,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (1/1) ... [2023-04-02 05:07:01,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:07:01,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:07:01,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 05:07:01,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 05:07:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:07:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:07:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:07:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:07:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:07:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:07:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:07:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:07:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:07:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:07:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:07:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:07:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:07:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:07:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:07:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:07:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:07:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:07:01,516 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:07:01,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:07:02,881 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:07:02,900 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:07:02,901 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:07:02,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:07:02 BoogieIcfgContainer [2023-04-02 05:07:02,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:07:02,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:07:02,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:07:02,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:07:02,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:07:00" (1/3) ... [2023-04-02 05:07:02,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e75799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:07:02, skipping insertion in model container [2023-04-02 05:07:02,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:01" (2/3) ... [2023-04-02 05:07:02,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e75799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:07:02, skipping insertion in model container [2023-04-02 05:07:02,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:07:02" (3/3) ... [2023-04-02 05:07:02,913 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.4.ufo.BOUNDED-10.pals.c [2023-04-02 05:07:02,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:07:02,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:07:02,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:07:03,002 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;@72d461c5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:07:03,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:07:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 674 states have (on average 1.8590504451038576) internal successors, (1253), 675 states have internal predecessors, (1253), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:07:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 05:07:03,033 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:03,034 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] [2023-04-02 05:07:03,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:03,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:03,039 INFO L85 PathProgramCache]: Analyzing trace with hash -24710538, now seen corresponding path program 1 times [2023-04-02 05:07:03,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:03,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078283680] [2023-04-02 05:07:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:03,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:07:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:07:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:07:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 05:07:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 05:07:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:07:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 05:07:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:07:04,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:04,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078283680] [2023-04-02 05:07:04,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078283680] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:04,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:04,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:07:04,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396583174] [2023-04-02 05:07:04,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:04,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:07:04,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:04,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:07:04,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:07:04,761 INFO L87 Difference]: Start difference. First operand has 698 states, 674 states have (on average 1.8590504451038576) internal successors, (1253), 675 states have internal predecessors, (1253), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:10,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:10,657 INFO L93 Difference]: Finished difference Result 861 states and 1550 transitions. [2023-04-02 05:07:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:07:10,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 182 [2023-04-02 05:07:10,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:10,675 INFO L225 Difference]: With dead ends: 861 [2023-04-02 05:07:10,675 INFO L226 Difference]: Without dead ends: 713 [2023-04-02 05:07:10,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:07:10,681 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1737 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:10,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 93 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 05:07:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-04-02 05:07:10,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 693. [2023-04-02 05:07:10,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 671 states have (on average 1.8569299552906111) internal successors, (1246), 671 states have internal predecessors, (1246), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:07:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1267 transitions. [2023-04-02 05:07:11,001 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1267 transitions. Word has length 182 [2023-04-02 05:07:11,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:11,002 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1267 transitions. [2023-04-02 05:07:11,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1267 transitions. [2023-04-02 05:07:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 05:07:11,007 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:11,007 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] [2023-04-02 05:07:11,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:07:11,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:11,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:11,008 INFO L85 PathProgramCache]: Analyzing trace with hash -377798920, now seen corresponding path program 1 times [2023-04-02 05:07:11,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:11,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371068247] [2023-04-02 05:07:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:11,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:07:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:07:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:07:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 05:07:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 05:07:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:07:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 05:07:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:07:12,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371068247] [2023-04-02 05:07:12,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371068247] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:12,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:12,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:07:12,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001707408] [2023-04-02 05:07:12,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:12,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:07:12,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:12,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:07:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:07:12,771 INFO L87 Difference]: Start difference. First operand 693 states and 1267 transitions. Second operand has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:21,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:21,695 INFO L93 Difference]: Finished difference Result 865 states and 1556 transitions. [2023-04-02 05:07:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:07:21,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 182 [2023-04-02 05:07:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:21,701 INFO L225 Difference]: With dead ends: 865 [2023-04-02 05:07:21,701 INFO L226 Difference]: Without dead ends: 724 [2023-04-02 05:07:21,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:07:21,704 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 5007 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9211 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 9343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 9211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:21,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5014 Valid, 135 Invalid, 9343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [132 Valid, 9211 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-04-02 05:07:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-04-02 05:07:21,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 693. [2023-04-02 05:07:21,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 671 states have (on average 1.767511177347243) internal successors, (1186), 671 states have internal predecessors, (1186), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:07:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1207 transitions. [2023-04-02 05:07:21,915 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1207 transitions. Word has length 182 [2023-04-02 05:07:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:21,916 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1207 transitions. [2023-04-02 05:07:21,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1207 transitions. [2023-04-02 05:07:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-04-02 05:07:21,919 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:21,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:07:21,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:07:21,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:21,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:21,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1697644091, now seen corresponding path program 1 times [2023-04-02 05:07:21,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:21,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664663951] [2023-04-02 05:07:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:21,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:22,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:22,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:07:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:07:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:07:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:22,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 05:07:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-04-02 05:07:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:23,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-04-02 05:07:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:07:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:07:23,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:23,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664663951] [2023-04-02 05:07:23,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664663951] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:23,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:23,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:07:23,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897764829] [2023-04-02 05:07:23,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:23,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:07:23,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:23,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:07:23,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:07:23,033 INFO L87 Difference]: Start difference. First operand 693 states and 1207 transitions. Second operand has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 5 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:30,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:30,357 INFO L93 Difference]: Finished difference Result 1002 states and 1729 transitions. [2023-04-02 05:07:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:07:30,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 5 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 241 [2023-04-02 05:07:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:30,363 INFO L225 Difference]: With dead ends: 1002 [2023-04-02 05:07:30,363 INFO L226 Difference]: Without dead ends: 867 [2023-04-02 05:07:30,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:07:30,365 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2534 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:30,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 82 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4097 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 05:07:30,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2023-04-02 05:07:30,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 815. [2023-04-02 05:07:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 778 states have (on average 1.762210796915167) internal successors, (1371), 779 states have internal predecessors, (1371), 18 states have call successors, (18), 18 states have call predecessors, (18), 18 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2023-04-02 05:07:30,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1408 transitions. [2023-04-02 05:07:30,612 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1408 transitions. Word has length 241 [2023-04-02 05:07:30,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:30,614 INFO L495 AbstractCegarLoop]: Abstraction has 815 states and 1408 transitions. [2023-04-02 05:07:30,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 5 states have internal predecessors, (221), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1408 transitions. [2023-04-02 05:07:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-04-02 05:07:30,618 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:30,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:07:30,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:07:30,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:30,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:30,620 INFO L85 PathProgramCache]: Analyzing trace with hash -398743863, now seen corresponding path program 1 times [2023-04-02 05:07:30,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451136032] [2023-04-02 05:07:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:30,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:07:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:07:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:07:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:07:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-02 05:07:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-02 05:07:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-04-02 05:07:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:07:31,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:31,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451136032] [2023-04-02 05:07:31,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451136032] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:31,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:31,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:07:31,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431602965] [2023-04-02 05:07:31,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:31,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:07:31,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:31,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:07:31,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:07:31,693 INFO L87 Difference]: Start difference. First operand 815 states and 1408 transitions. Second operand has 11 states, 11 states have (on average 20.454545454545453) internal successors, (225), 5 states have internal predecessors, (225), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:38,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:38,539 INFO L93 Difference]: Finished difference Result 1397 states and 2380 transitions. [2023-04-02 05:07:38,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:07:38,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.454545454545453) internal successors, (225), 5 states have internal predecessors, (225), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 245 [2023-04-02 05:07:38,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:38,545 INFO L225 Difference]: With dead ends: 1397 [2023-04-02 05:07:38,545 INFO L226 Difference]: Without dead ends: 1140 [2023-04-02 05:07:38,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:07:38,547 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7938 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7943 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 4002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:38,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7943 Valid, 80 Invalid, 4002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3899 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-02 05:07:38,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-04-02 05:07:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1052. [2023-04-02 05:07:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 984 states have (on average 1.7560975609756098) internal successors, (1728), 988 states have internal predecessors, (1728), 32 states have call successors, (32), 32 states have call predecessors, (32), 35 states have return successors, (39), 31 states have call predecessors, (39), 31 states have call successors, (39) [2023-04-02 05:07:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1799 transitions. [2023-04-02 05:07:38,845 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1799 transitions. Word has length 245 [2023-04-02 05:07:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:38,845 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1799 transitions. [2023-04-02 05:07:38,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.454545454545453) internal successors, (225), 5 states have internal predecessors, (225), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1799 transitions. [2023-04-02 05:07:38,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-04-02 05:07:38,851 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:38,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:07:38,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:07:38,851 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:38,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:38,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1709059945, now seen corresponding path program 1 times [2023-04-02 05:07:38,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:38,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636209994] [2023-04-02 05:07:38,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:38,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:07:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:07:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:07:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:07:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 05:07:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-04-02 05:07:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-04-02 05:07:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:07:40,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:40,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636209994] [2023-04-02 05:07:40,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636209994] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:40,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:40,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:07:40,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545450209] [2023-04-02 05:07:40,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:40,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:07:40,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:40,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:07:40,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:07:40,008 INFO L87 Difference]: Start difference. First operand 1052 states and 1799 transitions. Second operand has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 5 states have internal predecessors, (229), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:47,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:47,268 INFO L93 Difference]: Finished difference Result 2176 states and 3665 transitions. [2023-04-02 05:07:47,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:07:47,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 5 states have internal predecessors, (229), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 249 [2023-04-02 05:07:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:47,276 INFO L225 Difference]: With dead ends: 2176 [2023-04-02 05:07:47,276 INFO L226 Difference]: Without dead ends: 1682 [2023-04-02 05:07:47,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:07:47,279 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 4470 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 4388 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4474 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 4428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:47,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4474 Valid, 101 Invalid, 4428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4388 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 05:07:47,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-04-02 05:07:47,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1508. [2023-04-02 05:07:47,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1376 states have (on average 1.744186046511628) internal successors, (2400), 1388 states have internal predecessors, (2400), 60 states have call successors, (60), 60 states have call predecessors, (60), 71 states have return successors, (83), 59 states have call predecessors, (83), 59 states have call successors, (83) [2023-04-02 05:07:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 2543 transitions. [2023-04-02 05:07:47,644 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 2543 transitions. Word has length 249 [2023-04-02 05:07:47,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:47,644 INFO L495 AbstractCegarLoop]: Abstraction has 1508 states and 2543 transitions. [2023-04-02 05:07:47,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 5 states have internal predecessors, (229), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:07:47,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 2543 transitions. [2023-04-02 05:07:47,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-04-02 05:07:47,649 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:47,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:07:47,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:07:47,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:47,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:47,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1259474288, now seen corresponding path program 1 times [2023-04-02 05:07:47,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:47,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819697292] [2023-04-02 05:07:47,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:47,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:07:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:07:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:07:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:07:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:07:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-04-02 05:07:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:07:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:07:48,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:48,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819697292] [2023-04-02 05:07:48,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819697292] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:48,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:48,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:07:48,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010635139] [2023-04-02 05:07:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:48,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:07:48,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:48,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:07:48,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:07:48,637 INFO L87 Difference]: Start difference. First operand 1508 states and 2543 transitions. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 4 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:08:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:08:01,949 INFO L93 Difference]: Finished difference Result 5429 states and 9221 transitions. [2023-04-02 05:08:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 05:08:01,950 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 4 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 253 [2023-04-02 05:08:01,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:08:01,965 INFO L225 Difference]: With dead ends: 5429 [2023-04-02 05:08:01,965 INFO L226 Difference]: Without dead ends: 4044 [2023-04-02 05:08:01,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-04-02 05:08:01,969 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 9371 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 8050 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9384 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 8203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 8050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:08:01,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9384 Valid, 142 Invalid, 8203 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [153 Valid, 8050 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-04-02 05:08:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2023-04-02 05:08:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 3703. [2023-04-02 05:08:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3703 states, 3410 states have (on average 1.733724340175953) internal successors, (5912), 3436 states have internal predecessors, (5912), 133 states have call successors, (133), 133 states have call predecessors, (133), 159 states have return successors, (195), 133 states have call predecessors, (195), 132 states have call successors, (195) [2023-04-02 05:08:02,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3703 states to 3703 states and 6240 transitions. [2023-04-02 05:08:02,926 INFO L78 Accepts]: Start accepts. Automaton has 3703 states and 6240 transitions. Word has length 253 [2023-04-02 05:08:02,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:08:02,927 INFO L495 AbstractCegarLoop]: Abstraction has 3703 states and 6240 transitions. [2023-04-02 05:08:02,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 4 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:08:02,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3703 states and 6240 transitions. [2023-04-02 05:08:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-04-02 05:08:02,936 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:08:02,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:08:02,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:08:02,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:08:02,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:08:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash 52300965, now seen corresponding path program 1 times [2023-04-02 05:08:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:08:02,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927494927] [2023-04-02 05:08:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:08:02,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:08:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:08:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:08:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:03,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:08:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:08:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:08:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:03,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:08:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:03,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:08:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-04-02 05:08:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:08:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:08:04,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:08:04,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927494927] [2023-04-02 05:08:04,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927494927] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:08:04,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:08:04,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:08:04,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555909643] [2023-04-02 05:08:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:08:04,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:08:04,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:08:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:08:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:08:04,066 INFO L87 Difference]: Start difference. First operand 3703 states and 6240 transitions. Second operand has 11 states, 11 states have (on average 21.181818181818183) internal successors, (233), 5 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:08:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:08:11,881 INFO L93 Difference]: Finished difference Result 8522 states and 14118 transitions. [2023-04-02 05:08:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:08:11,885 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.181818181818183) internal successors, (233), 5 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 253 [2023-04-02 05:08:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:08:11,910 INFO L225 Difference]: With dead ends: 8522 [2023-04-02 05:08:11,910 INFO L226 Difference]: Without dead ends: 6393 [2023-04-02 05:08:11,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:08:11,917 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3841 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4024 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:08:11,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3844 Valid, 75 Invalid, 4060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4024 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 05:08:11,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6393 states. [2023-04-02 05:08:13,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6393 to 5666. [2023-04-02 05:08:13,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5666 states, 5078 states have (on average 1.7166207168176448) internal successors, (8717), 5147 states have internal predecessors, (8717), 259 states have call successors, (259), 259 states have call predecessors, (259), 328 states have return successors, (415), 259 states have call predecessors, (415), 258 states have call successors, (415) [2023-04-02 05:08:13,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5666 states to 5666 states and 9391 transitions. [2023-04-02 05:08:13,386 INFO L78 Accepts]: Start accepts. Automaton has 5666 states and 9391 transitions. Word has length 253 [2023-04-02 05:08:13,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:08:13,387 INFO L495 AbstractCegarLoop]: Abstraction has 5666 states and 9391 transitions. [2023-04-02 05:08:13,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.181818181818183) internal successors, (233), 5 states have internal predecessors, (233), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:08:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5666 states and 9391 transitions. [2023-04-02 05:08:13,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-04-02 05:08:13,398 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:08:13,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:08:13,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:08:13,399 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:08:13,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:08:13,400 INFO L85 PathProgramCache]: Analyzing trace with hash 219045619, now seen corresponding path program 1 times [2023-04-02 05:08:13,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:08:13,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637048842] [2023-04-02 05:08:13,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:08:13,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:08:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:08:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:08:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:08:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:08:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:08:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:08:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:08:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:08:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-04-02 05:08:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:08:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:08:14,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637048842] [2023-04-02 05:08:14,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637048842] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:08:14,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:08:14,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:08:14,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858725784] [2023-04-02 05:08:14,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:08:14,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:08:14,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:08:14,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:08:14,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:08:14,476 INFO L87 Difference]: Start difference. First operand 5666 states and 9391 transitions. Second operand has 11 states, 11 states have (on average 21.545454545454547) internal successors, (237), 5 states have internal predecessors, (237), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:08:22,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:08:22,969 INFO L93 Difference]: Finished difference Result 14971 states and 24455 transitions. [2023-04-02 05:08:22,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 05:08:22,970 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.545454545454547) internal successors, (237), 5 states have internal predecessors, (237), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 257 [2023-04-02 05:08:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:08:23,019 INFO L225 Difference]: With dead ends: 14971 [2023-04-02 05:08:23,019 INFO L226 Difference]: Without dead ends: 10879 [2023-04-02 05:08:23,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:08:23,032 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2760 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 4090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:08:23,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 76 Invalid, 4090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4070 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 05:08:23,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2023-04-02 05:08:25,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 9430. [2023-04-02 05:08:25,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9430 states, 8234 states have (on average 1.6940733543842603) internal successors, (13949), 8407 states have internal predecessors, (13949), 511 states have call successors, (511), 511 states have call predecessors, (511), 684 states have return successors, (891), 511 states have call predecessors, (891), 510 states have call successors, (891) [2023-04-02 05:08:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9430 states to 9430 states and 15351 transitions. [2023-04-02 05:08:25,134 INFO L78 Accepts]: Start accepts. Automaton has 9430 states and 15351 transitions. Word has length 257 [2023-04-02 05:08:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:08:25,135 INFO L495 AbstractCegarLoop]: Abstraction has 9430 states and 15351 transitions. [2023-04-02 05:08:25,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.545454545454547) internal successors, (237), 5 states have internal predecessors, (237), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:08:25,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9430 states and 15351 transitions. [2023-04-02 05:08:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-04-02 05:08:25,148 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:08:25,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:08:25,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:08:25,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:08:25,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:08:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1637834817, now seen corresponding path program 1 times [2023-04-02 05:08:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:08:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791687524] [2023-04-02 05:08:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:08:25,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:08:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:08:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:08:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:08:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:08:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:08:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:08:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:27,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:08:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:27,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:08:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:08:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:08:27,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:08:27,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791687524] [2023-04-02 05:08:27,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791687524] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:08:27,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:08:27,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:08:27,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101623106] [2023-04-02 05:08:27,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:08:27,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:08:27,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:08:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:08:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:08:27,150 INFO L87 Difference]: Start difference. First operand 9430 states and 15351 transitions. Second operand has 19 states, 19 states have (on average 12.68421052631579) internal successors, (241), 13 states have internal predecessors, (241), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:09:08,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:09:08,246 INFO L93 Difference]: Finished difference Result 84906 states and 140335 transitions. [2023-04-02 05:09:08,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-04-02 05:09:08,247 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.68421052631579) internal successors, (241), 13 states have internal predecessors, (241), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 261 [2023-04-02 05:09:08,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:09:08,602 INFO L225 Difference]: With dead ends: 84906 [2023-04-02 05:09:08,602 INFO L226 Difference]: Without dead ends: 77050 [2023-04-02 05:09:08,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6551 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=2884, Invalid=15206, Unknown=0, NotChecked=0, Total=18090 [2023-04-02 05:09:08,666 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 10037 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 14845 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10050 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 15225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 14845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:09:08,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10050 Valid, 236 Invalid, 15225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [380 Valid, 14845 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-04-02 05:09:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77050 states. [2023-04-02 05:09:18,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77050 to 65439. [2023-04-02 05:09:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65439 states, 55780 states have (on average 1.6786482610254572) internal successors, (93635), 57360 states have internal predecessors, (93635), 4039 states have call successors, (4039), 4039 states have call predecessors, (4039), 5619 states have return successors, (9924), 4039 states have call predecessors, (9924), 4038 states have call successors, (9924) [2023-04-02 05:09:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65439 states to 65439 states and 107598 transitions. [2023-04-02 05:09:18,818 INFO L78 Accepts]: Start accepts. Automaton has 65439 states and 107598 transitions. Word has length 261 [2023-04-02 05:09:18,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:09:18,819 INFO L495 AbstractCegarLoop]: Abstraction has 65439 states and 107598 transitions. [2023-04-02 05:09:18,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.68421052631579) internal successors, (241), 13 states have internal predecessors, (241), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:09:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 65439 states and 107598 transitions. [2023-04-02 05:09:19,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-04-02 05:09:19,088 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:09:19,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:09:19,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:09:19,089 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:09:19,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:09:19,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1749459109, now seen corresponding path program 1 times [2023-04-02 05:09:19,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:09:19,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617788923] [2023-04-02 05:09:19,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:09:19,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:09:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:09:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:09:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:09:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:09:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:09:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:09:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:09:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:09:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:09:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:09:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:09:20,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:09:20,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617788923] [2023-04-02 05:09:20,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617788923] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:09:20,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:09:20,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:09:20,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862659165] [2023-04-02 05:09:20,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:09:20,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:09:20,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:09:20,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:09:20,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:09:20,460 INFO L87 Difference]: Start difference. First operand 65439 states and 107598 transitions. Second operand has 12 states, 12 states have (on average 20.166666666666668) internal successors, (242), 6 states have internal predecessors, (242), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:09:49,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:09:49,240 INFO L93 Difference]: Finished difference Result 221056 states and 365456 transitions. [2023-04-02 05:09:49,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:09:49,241 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.166666666666668) internal successors, (242), 6 states have internal predecessors, (242), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 262 [2023-04-02 05:09:49,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:09:50,129 INFO L225 Difference]: With dead ends: 221056 [2023-04-02 05:09:50,130 INFO L226 Difference]: Without dead ends: 157191 [2023-04-02 05:09:50,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:09:50,412 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 3506 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 7509 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3517 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 7568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 7509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:09:50,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3517 Valid, 159 Invalid, 7568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 7509 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 05:09:50,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157191 states. [2023-04-02 05:10:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157191 to 134090. [2023-04-02 05:10:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134090 states, 113846 states have (on average 1.671881313353126) internal successors, (190337), 117387 states have internal predecessors, (190337), 8351 states have call successors, (8351), 8351 states have call predecessors, (8351), 11892 states have return successors, (21701), 8351 states have call predecessors, (21701), 8350 states have call successors, (21701) [2023-04-02 05:10:09,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134090 states to 134090 states and 220389 transitions. [2023-04-02 05:10:09,104 INFO L78 Accepts]: Start accepts. Automaton has 134090 states and 220389 transitions. Word has length 262 [2023-04-02 05:10:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:10:09,105 INFO L495 AbstractCegarLoop]: Abstraction has 134090 states and 220389 transitions. [2023-04-02 05:10:09,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.166666666666668) internal successors, (242), 6 states have internal predecessors, (242), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:10:09,105 INFO L276 IsEmpty]: Start isEmpty. Operand 134090 states and 220389 transitions. [2023-04-02 05:10:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-04-02 05:10:09,153 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:10:09,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:10:09,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:10:09,153 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:10:09,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:10:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2038717936, now seen corresponding path program 1 times [2023-04-02 05:10:09,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:10:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942412367] [2023-04-02 05:10:09,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:10:09,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:10:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:10:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:10:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 05:10:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:09,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 05:10:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:10:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:10:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:10:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:10,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:10:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-04-02 05:10:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:10:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:10:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:10:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942412367] [2023-04-02 05:10:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942412367] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:10:10,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:10:10,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:10:10,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639071257] [2023-04-02 05:10:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:10:10,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:10:10,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:10:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:10:10,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:10:10,057 INFO L87 Difference]: Start difference. First operand 134090 states and 220389 transitions. Second operand has 10 states, 10 states have (on average 24.2) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)