/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_lcr.7_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:20:41,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:20:41,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:20:41,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:20:41,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:20:41,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:20:41,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:20:41,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:20:41,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:20:41,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:20:41,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:20:41,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:20:41,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:20:41,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:20:41,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:20:41,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:20:41,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:20:41,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:20:41,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:20:41,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:20:41,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:20:41,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:20:41,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:20:41,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:20:41,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:20:41,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:20:41,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:20:41,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:20:41,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:20:41,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:20:41,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:20:41,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:20:41,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:20:41,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:20:41,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:20:41,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:20:41,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:20:41,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:20:41,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:20:41,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:20:41,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:20:41,983 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 05:20:42,017 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:20:42,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:20:42,018 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:20:42,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:20:42,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:20:42,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:20:42,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:20:42,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:20:42,020 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:20:42,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:20:42,021 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:20:42,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:20:42,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:20:42,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:20:42,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:20:42,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:20:42,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:20:42,022 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:20:42,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:20:42,022 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:20:42,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:20:42,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:20:42,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:20:42,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:20:42,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:20:42,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:20:42,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:20:42,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:20:42,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:20:42,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:20:42,023 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:20:42,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:20:42,024 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:20:42,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:20:42,024 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:20:42,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:20:42,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:20:42,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:20:42,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:20:42,272 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:20:42,273 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:20:42,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2023-04-02 05:20:43,472 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:20:43,706 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:20:43,706 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2023-04-02 05:20:43,714 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7af9c10f/da29ad66039a4390a26bece98a419c1c/FLAG7a733b13d [2023-04-02 05:20:43,724 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7af9c10f/da29ad66039a4390a26bece98a419c1c [2023-04-02 05:20:43,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:20:43,727 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:20:43,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:20:43,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:20:43,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:20:43,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:20:43" (1/1) ... [2023-04-02 05:20:43,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297e8890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:43, skipping insertion in model container [2023-04-02 05:20:43,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:20:43" (1/1) ... [2023-04-02 05:20:43,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:20:43,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:20:43,976 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c[20121,20134] [2023-04-02 05:20:43,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:20:43,990 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:20:44,067 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_lcr.7_overflow.ufo.UNBOUNDED.pals.c[20121,20134] [2023-04-02 05:20:44,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:20:44,083 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:20:44,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44 WrapperNode [2023-04-02 05:20:44,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:20:44,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:20:44,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:20:44,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:20:44,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:20:44,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:20:44,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:20:44,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:20:44,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (1/1) ... [2023-04-02 05:20:44,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:20:44,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:20:44,178 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 05:20:44,180 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 05:20:44,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:20:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:20:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:20:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:20:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:20:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:20:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:20:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:20:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:20:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 05:20:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:20:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:20:44,319 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:20:44,322 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:20:44,811 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:20:44,819 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:20:44,819 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:20:44,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:20:44 BoogieIcfgContainer [2023-04-02 05:20:44,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:20:44,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:20:44,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:20:44,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:20:44,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:20:43" (1/3) ... [2023-04-02 05:20:44,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e8871d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:20:44, skipping insertion in model container [2023-04-02 05:20:44,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:20:44" (2/3) ... [2023-04-02 05:20:44,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e8871d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:20:44, skipping insertion in model container [2023-04-02 05:20:44,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:20:44" (3/3) ... [2023-04-02 05:20:44,835 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2023-04-02 05:20:44,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:20:44,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:20:44,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:20:44,927 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;@6e67ba9e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:20:44,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:20:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 128 states have (on average 1.6875) internal successors, (216), 130 states have internal predecessors, (216), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-04-02 05:20:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 05:20:44,950 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:20:44,953 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] [2023-04-02 05:20:44,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:20:44,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:20:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash -60004031, now seen corresponding path program 1 times [2023-04-02 05:20:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:20:44,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103879917] [2023-04-02 05:20:44,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:20:44,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:20:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:20:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:20:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:20:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:20:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:20:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:20:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:20:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 05:20:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:20:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:20:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:20:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:45,793 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 05:20:45,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:20:45,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103879917] [2023-04-02 05:20:45,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103879917] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:20:45,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:20:45,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:20:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588813677] [2023-04-02 05:20:45,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:20:45,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:20:45,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:20:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:20:45,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:20:45,851 INFO L87 Difference]: Start difference. First operand has 156 states, 128 states have (on average 1.6875) internal successors, (216), 130 states have internal predecessors, (216), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 10 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:20:47,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:20:47,162 INFO L93 Difference]: Finished difference Result 242 states and 365 transitions. [2023-04-02 05:20:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:20:47,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 10 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2023-04-02 05:20:47,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:20:47,176 INFO L225 Difference]: With dead ends: 242 [2023-04-02 05:20:47,176 INFO L226 Difference]: Without dead ends: 151 [2023-04-02 05:20:47,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:20:47,187 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1075 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:20:47,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 67 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:20:47,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-04-02 05:20:47,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-04-02 05:20:47,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.672) internal successors, (209), 126 states have internal predecessors, (209), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-04-02 05:20:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 234 transitions. [2023-04-02 05:20:47,296 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 234 transitions. Word has length 67 [2023-04-02 05:20:47,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:20:47,297 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 234 transitions. [2023-04-02 05:20:47,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 10 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:20:47,299 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 234 transitions. [2023-04-02 05:20:47,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 05:20:47,312 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:20:47,313 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] [2023-04-02 05:20:47,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:20:47,313 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:20:47,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:20:47,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1478335999, now seen corresponding path program 1 times [2023-04-02 05:20:47,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:20:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786515294] [2023-04-02 05:20:47,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:20:47,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:20:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:20:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:20:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:20:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:20:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:20:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:20:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:20:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 05:20:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:20:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 05:20:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 05:20:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:47,883 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 05:20:47,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:20:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786515294] [2023-04-02 05:20:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786515294] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:20:47,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:20:47,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 05:20:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131559992] [2023-04-02 05:20:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:20:47,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 05:20:47,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:20:47,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 05:20:47,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:20:47,888 INFO L87 Difference]: Start difference. First operand 151 states and 234 transitions. Second operand has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:20:50,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:20:50,055 INFO L93 Difference]: Finished difference Result 240 states and 357 transitions. [2023-04-02 05:20:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 05:20:50,056 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 67 [2023-04-02 05:20:50,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:20:50,058 INFO L225 Difference]: With dead ends: 240 [2023-04-02 05:20:50,058 INFO L226 Difference]: Without dead ends: 151 [2023-04-02 05:20:50,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-04-02 05:20:50,060 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1491 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:20:50,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 168 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:20:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-04-02 05:20:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-04-02 05:20:50,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.272) internal successors, (159), 126 states have internal predecessors, (159), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-04-02 05:20:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2023-04-02 05:20:50,084 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 67 [2023-04-02 05:20:50,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:20:50,084 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2023-04-02 05:20:50,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:20:50,085 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2023-04-02 05:20:50,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-02 05:20:50,086 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:20:50,086 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] [2023-04-02 05:20:50,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:20:50,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:20:50,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:20:50,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1222353108, now seen corresponding path program 1 times [2023-04-02 05:20:50,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:20:50,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636121433] [2023-04-02 05:20:50,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:20:50,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:20:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:20:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:50,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:20:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:50,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:20:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:20:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:50,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:20:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:20:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:20:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:51,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:20:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:20:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:20:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:51,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:20:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:20:51,177 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 05:20:51,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:20:51,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636121433] [2023-04-02 05:20:51,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636121433] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:20:51,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:20:51,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:20:51,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331172644] [2023-04-02 05:20:51,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:20:51,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:20:51,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:20:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:20:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:20:51,180 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:14,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:14,561 INFO L93 Difference]: Finished difference Result 1953 states and 2804 transitions. [2023-04-02 05:21:14,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-04-02 05:21:14,561 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2023-04-02 05:21:14,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:14,575 INFO L225 Difference]: With dead ends: 1953 [2023-04-02 05:21:14,576 INFO L226 Difference]: Without dead ends: 1870 [2023-04-02 05:21:14,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22192 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=7424, Invalid=48982, Unknown=0, NotChecked=0, Total=56406 [2023-04-02 05:21:14,594 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 4433 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 8016 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4450 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 8577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 8016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:14,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4450 Valid, 489 Invalid, 8577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [561 Valid, 8016 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 05:21:14,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2023-04-02 05:21:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 590. [2023-04-02 05:21:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 460 states have (on average 1.4130434782608696) internal successors, (650), 475 states have internal predecessors, (650), 58 states have call successors, (58), 58 states have call predecessors, (58), 71 states have return successors, (103), 57 states have call predecessors, (103), 57 states have call successors, (103) [2023-04-02 05:21:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 811 transitions. [2023-04-02 05:21:14,814 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 811 transitions. Word has length 116 [2023-04-02 05:21:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:14,818 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 811 transitions. [2023-04-02 05:21:14,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:14,818 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 811 transitions. [2023-04-02 05:21:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 05:21:14,825 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:14,825 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] [2023-04-02 05:21:14,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:21:14,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:14,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash -977322468, now seen corresponding path program 1 times [2023-04-02 05:21:14,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:14,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888722001] [2023-04-02 05:21:14,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:14,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:21:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:21:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:15,165 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 05:21:15,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:15,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888722001] [2023-04-02 05:21:15,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888722001] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:15,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:15,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:21:15,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451935144] [2023-04-02 05:21:15,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:15,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:21:15,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:15,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:21:15,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:21:15,168 INFO L87 Difference]: Start difference. First operand 590 states and 811 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (13), 10 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-02 05:21:17,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:17,238 INFO L93 Difference]: Finished difference Result 1594 states and 2253 transitions. [2023-04-02 05:21:17,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 05:21:17,238 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (13), 10 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 118 [2023-04-02 05:21:17,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:17,244 INFO L225 Difference]: With dead ends: 1594 [2023-04-02 05:21:17,245 INFO L226 Difference]: Without dead ends: 1072 [2023-04-02 05:21:17,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:21:17,250 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 596 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:17,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 117 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:21:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-04-02 05:21:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1070. [2023-04-02 05:21:17,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 820 states have (on average 1.421951219512195) internal successors, (1166), 847 states have internal predecessors, (1166), 112 states have call successors, (112), 112 states have call predecessors, (112), 137 states have return successors, (213), 111 states have call predecessors, (213), 111 states have call successors, (213) [2023-04-02 05:21:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1491 transitions. [2023-04-02 05:21:17,473 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1491 transitions. Word has length 118 [2023-04-02 05:21:17,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:17,474 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1491 transitions. [2023-04-02 05:21:17,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (13), 10 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-02 05:21:17,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1491 transitions. [2023-04-02 05:21:17,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 05:21:17,476 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:17,477 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] [2023-04-02 05:21:17,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:21:17,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:17,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2029942372, now seen corresponding path program 1 times [2023-04-02 05:21:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:17,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660334641] [2023-04-02 05:21:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:17,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:21:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:21:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:18,761 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 05:21:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:18,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660334641] [2023-04-02 05:21:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660334641] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:18,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:21:18,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895591717] [2023-04-02 05:21:18,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:18,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:21:18,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:18,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:21:18,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:21:18,765 INFO L87 Difference]: Start difference. First operand 1070 states and 1491 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:44,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:44,295 INFO L93 Difference]: Finished difference Result 5448 states and 7862 transitions. [2023-04-02 05:21:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2023-04-02 05:21:44,296 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2023-04-02 05:21:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:44,316 INFO L225 Difference]: With dead ends: 5448 [2023-04-02 05:21:44,316 INFO L226 Difference]: Without dead ends: 4446 [2023-04-02 05:21:44,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21881 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=7284, Invalid=47706, Unknown=0, NotChecked=0, Total=54990 [2023-04-02 05:21:44,334 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 5342 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 6953 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5359 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 7574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 6953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:44,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5359 Valid, 392 Invalid, 7574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 6953 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 05:21:44,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2023-04-02 05:21:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 4350. [2023-04-02 05:21:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4350 states, 3327 states have (on average 1.4643823264201983) internal successors, (4872), 3395 states have internal predecessors, (4872), 478 states have call successors, (478), 478 states have call predecessors, (478), 544 states have return successors, (946), 477 states have call predecessors, (946), 477 states have call successors, (946) [2023-04-02 05:21:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4350 states to 4350 states and 6296 transitions. [2023-04-02 05:21:45,244 INFO L78 Accepts]: Start accepts. Automaton has 4350 states and 6296 transitions. Word has length 118 [2023-04-02 05:21:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:45,246 INFO L495 AbstractCegarLoop]: Abstraction has 4350 states and 6296 transitions. [2023-04-02 05:21:45,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4350 states and 6296 transitions. [2023-04-02 05:21:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-04-02 05:21:45,249 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:45,249 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] [2023-04-02 05:21:45,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:21:45,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:45,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1277987856, now seen corresponding path program 1 times [2023-04-02 05:21:45,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939453473] [2023-04-02 05:21:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:21:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:21:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:45,764 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 05:21:45,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:45,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939453473] [2023-04-02 05:21:45,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939453473] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:45,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:45,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:21:45,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92808381] [2023-04-02 05:21:45,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:45,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:21:45,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:45,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:21:45,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:21:45,767 INFO L87 Difference]: Start difference. First operand 4350 states and 6296 transitions. Second operand has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:49,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:49,223 INFO L93 Difference]: Finished difference Result 10265 states and 14903 transitions. [2023-04-02 05:21:49,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 05:21:49,226 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2023-04-02 05:21:49,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:49,252 INFO L225 Difference]: With dead ends: 10265 [2023-04-02 05:21:49,252 INFO L226 Difference]: Without dead ends: 5983 [2023-04-02 05:21:49,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:21:49,264 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1190 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:49,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 117 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:21:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2023-04-02 05:21:50,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5979. [2023-04-02 05:21:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5979 states, 4550 states have (on average 1.4591208791208792) internal successors, (6639), 4660 states have internal predecessors, (6639), 660 states have call successors, (660), 660 states have call predecessors, (660), 768 states have return successors, (1324), 659 states have call predecessors, (1324), 659 states have call successors, (1324) [2023-04-02 05:21:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5979 states to 5979 states and 8623 transitions. [2023-04-02 05:21:50,761 INFO L78 Accepts]: Start accepts. Automaton has 5979 states and 8623 transitions. Word has length 119 [2023-04-02 05:21:50,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:50,762 INFO L495 AbstractCegarLoop]: Abstraction has 5979 states and 8623 transitions. [2023-04-02 05:21:50,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:50,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5979 states and 8623 transitions. [2023-04-02 05:21:50,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-04-02 05:21:50,767 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:50,768 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] [2023-04-02 05:21:50,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:21:50,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:50,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:50,768 INFO L85 PathProgramCache]: Analyzing trace with hash 369437105, now seen corresponding path program 1 times [2023-04-02 05:21:50,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:50,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333023927] [2023-04-02 05:21:50,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:50,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:21:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:21:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:21:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:21:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:21:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:21:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:21:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:51,507 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 05:21:51,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:51,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333023927] [2023-04-02 05:21:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333023927] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:51,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:51,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-04-02 05:21:51,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963570130] [2023-04-02 05:21:51,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:51,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 05:21:51,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:51,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 05:21:51,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:21:51,512 INFO L87 Difference]: Start difference. First operand 5979 states and 8623 transitions. Second operand has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:54,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:21:54,989 INFO L93 Difference]: Finished difference Result 6426 states and 9658 transitions. [2023-04-02 05:21:54,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:21:54,990 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2023-04-02 05:21:54,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:21:55,025 INFO L225 Difference]: With dead ends: 6426 [2023-04-02 05:21:55,025 INFO L226 Difference]: Without dead ends: 6424 [2023-04-02 05:21:55,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=225, Invalid=897, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 05:21:55,031 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 689 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 2262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:21:55,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 359 Invalid, 2262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:21:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6424 states. [2023-04-02 05:21:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6424 to 6042. [2023-04-02 05:21:56,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 4592 states have (on average 1.4520905923344947) internal successors, (6668), 4709 states have internal predecessors, (6668), 667 states have call successors, (667), 667 states have call predecessors, (667), 782 states have return successors, (1345), 666 states have call predecessors, (1345), 666 states have call successors, (1345) [2023-04-02 05:21:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 8680 transitions. [2023-04-02 05:21:56,168 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 8680 transitions. Word has length 119 [2023-04-02 05:21:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:21:56,168 INFO L495 AbstractCegarLoop]: Abstraction has 6042 states and 8680 transitions. [2023-04-02 05:21:56,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:21:56,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 8680 transitions. [2023-04-02 05:21:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:21:56,172 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:21:56,172 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] [2023-04-02 05:21:56,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:21:56,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:21:56,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:21:56,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1620017692, now seen corresponding path program 1 times [2023-04-02 05:21:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:21:56,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787912660] [2023-04-02 05:21:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:21:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:21:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:21:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:21:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:21:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:21:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 05:21:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:21:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:21:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:21:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:21:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:21:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:21:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:21:56,701 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 05:21:56,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:21:56,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787912660] [2023-04-02 05:21:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787912660] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:21:56,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:21:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:21:56,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508656831] [2023-04-02 05:21:56,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:21:56,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:21:56,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:21:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:21:56,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:21:56,704 INFO L87 Difference]: Start difference. First operand 6042 states and 8680 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:01,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:01,316 INFO L93 Difference]: Finished difference Result 12307 states and 17766 transitions. [2023-04-02 05:22:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:22:01,317 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:22:01,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:01,353 INFO L225 Difference]: With dead ends: 12307 [2023-04-02 05:22:01,353 INFO L226 Difference]: Without dead ends: 7920 [2023-04-02 05:22:01,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:22:01,367 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2053 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:01,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 78 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:22:01,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2023-04-02 05:22:02,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 6981. [2023-04-02 05:22:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6981 states, 5311 states have (on average 1.4611184334400302) internal successors, (7760), 5460 states have internal predecessors, (7760), 761 states have call successors, (761), 761 states have call predecessors, (761), 908 states have return successors, (1536), 759 states have call predecessors, (1536), 760 states have call successors, (1536) [2023-04-02 05:22:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6981 states to 6981 states and 10057 transitions. [2023-04-02 05:22:02,724 INFO L78 Accepts]: Start accepts. Automaton has 6981 states and 10057 transitions. Word has length 120 [2023-04-02 05:22:02,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:02,724 INFO L495 AbstractCegarLoop]: Abstraction has 6981 states and 10057 transitions. [2023-04-02 05:22:02,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6981 states and 10057 transitions. [2023-04-02 05:22:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:22:02,729 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:02,729 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] [2023-04-02 05:22:02,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:22:02,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:02,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash -109043340, now seen corresponding path program 1 times [2023-04-02 05:22:02,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:02,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530233318] [2023-04-02 05:22:02,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:02,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 05:22:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:22:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:22:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:22:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:22:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:22:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:03,274 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 05:22:03,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:03,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530233318] [2023-04-02 05:22:03,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530233318] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:03,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:03,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:22:03,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662436425] [2023-04-02 05:22:03,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:03,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:22:03,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:03,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:22:03,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:22:03,276 INFO L87 Difference]: Start difference. First operand 6981 states and 10057 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:08,497 INFO L93 Difference]: Finished difference Result 18346 states and 26442 transitions. [2023-04-02 05:22:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:22:08,498 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:22:08,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:08,540 INFO L225 Difference]: With dead ends: 18346 [2023-04-02 05:22:08,540 INFO L226 Difference]: Without dead ends: 11439 [2023-04-02 05:22:08,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:22:08,561 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2137 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:08,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 78 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:22:08,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11439 states. [2023-04-02 05:22:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11439 to 6929. [2023-04-02 05:22:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 5270 states have (on average 1.4601518026565465) internal successors, (7695), 5418 states have internal predecessors, (7695), 756 states have call successors, (756), 756 states have call predecessors, (756), 902 states have return successors, (1526), 754 states have call predecessors, (1526), 755 states have call successors, (1526) [2023-04-02 05:22:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 9977 transitions. [2023-04-02 05:22:10,148 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 9977 transitions. Word has length 120 [2023-04-02 05:22:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:10,148 INFO L495 AbstractCegarLoop]: Abstraction has 6929 states and 9977 transitions. [2023-04-02 05:22:10,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 9977 transitions. [2023-04-02 05:22:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:22:10,151 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:10,151 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] [2023-04-02 05:22:10,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:22:10,152 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:10,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash 332490724, now seen corresponding path program 1 times [2023-04-02 05:22:10,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:10,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732495237] [2023-04-02 05:22:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:10,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:22:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:22:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:22:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:22:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:22:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:22:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:10,666 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 05:22:10,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:10,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732495237] [2023-04-02 05:22:10,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732495237] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:10,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:10,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:22:10,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023328826] [2023-04-02 05:22:10,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:10,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:22:10,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:10,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:22:10,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:22:10,668 INFO L87 Difference]: Start difference. First operand 6929 states and 9977 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:15,529 INFO L93 Difference]: Finished difference Result 15762 states and 22577 transitions. [2023-04-02 05:22:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:22:15,529 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:22:15,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:15,561 INFO L225 Difference]: With dead ends: 15762 [2023-04-02 05:22:15,561 INFO L226 Difference]: Without dead ends: 8981 [2023-04-02 05:22:15,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:22:15,577 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1929 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:15,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 78 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:22:15,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8981 states. [2023-04-02 05:22:16,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8981 to 6983. [2023-04-02 05:22:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 5307 states have (on average 1.4578858111927642) internal successors, (7737), 5460 states have internal predecessors, (7737), 762 states have call successors, (762), 762 states have call predecessors, (762), 913 states have return successors, (1539), 760 states have call predecessors, (1539), 761 states have call successors, (1539) [2023-04-02 05:22:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 10038 transitions. [2023-04-02 05:22:16,970 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 10038 transitions. Word has length 120 [2023-04-02 05:22:16,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:16,971 INFO L495 AbstractCegarLoop]: Abstraction has 6983 states and 10038 transitions. [2023-04-02 05:22:16,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 10038 transitions. [2023-04-02 05:22:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:22:16,975 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:16,975 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] [2023-04-02 05:22:16,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:22:16,975 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:16,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:16,976 INFO L85 PathProgramCache]: Analyzing trace with hash -774499596, now seen corresponding path program 1 times [2023-04-02 05:22:16,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:16,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153481329] [2023-04-02 05:22:16,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:16,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:22:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:22:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:22:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:22:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:22:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:22:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:17,487 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 05:22:17,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:17,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153481329] [2023-04-02 05:22:17,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153481329] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:17,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:17,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:22:17,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716328988] [2023-04-02 05:22:17,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:17,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:22:17,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:17,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:22:17,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:22:17,489 INFO L87 Difference]: Start difference. First operand 6983 states and 10038 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:22,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:22,285 INFO L93 Difference]: Finished difference Result 15000 states and 21415 transitions. [2023-04-02 05:22:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:22:22,288 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:22:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:22,315 INFO L225 Difference]: With dead ends: 15000 [2023-04-02 05:22:22,315 INFO L226 Difference]: Without dead ends: 8246 [2023-04-02 05:22:22,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:22:22,331 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2081 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:22,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 78 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:22:22,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2023-04-02 05:22:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 7025. [2023-04-02 05:22:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 5339 states have (on average 1.455890616220266) internal successors, (7773), 5492 states have internal predecessors, (7773), 767 states have call successors, (767), 767 states have call predecessors, (767), 918 states have return successors, (1544), 765 states have call predecessors, (1544), 766 states have call successors, (1544) [2023-04-02 05:22:23,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10084 transitions. [2023-04-02 05:22:23,749 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10084 transitions. Word has length 120 [2023-04-02 05:22:23,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:23,749 INFO L495 AbstractCegarLoop]: Abstraction has 7025 states and 10084 transitions. [2023-04-02 05:22:23,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:23,749 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10084 transitions. [2023-04-02 05:22:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:22:23,752 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:23,752 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] [2023-04-02 05:22:23,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:22:23,752 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:23,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:23,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1298350180, now seen corresponding path program 1 times [2023-04-02 05:22:23,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:23,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636409208] [2023-04-02 05:22:23,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:22:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:22:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:22:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:22:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:22:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:22:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:24,230 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 05:22:24,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:24,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636409208] [2023-04-02 05:22:24,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636409208] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:24,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:24,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:22:24,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915280467] [2023-04-02 05:22:24,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:24,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:22:24,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:24,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:22:24,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:22:24,232 INFO L87 Difference]: Start difference. First operand 7025 states and 10084 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:28,933 INFO L93 Difference]: Finished difference Result 14269 states and 20325 transitions. [2023-04-02 05:22:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:22:28,934 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:22:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:28,952 INFO L225 Difference]: With dead ends: 14269 [2023-04-02 05:22:28,952 INFO L226 Difference]: Without dead ends: 7545 [2023-04-02 05:22:28,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:22:28,964 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2057 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:28,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 78 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:22:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7545 states. [2023-04-02 05:22:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7545 to 7052. [2023-04-02 05:22:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7052 states, 5361 states have (on average 1.4540197724305166) internal successors, (7795), 5511 states have internal predecessors, (7795), 771 states have call successors, (771), 771 states have call predecessors, (771), 919 states have return successors, (1544), 769 states have call predecessors, (1544), 770 states have call successors, (1544) [2023-04-02 05:22:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7052 states to 7052 states and 10110 transitions. [2023-04-02 05:22:30,423 INFO L78 Accepts]: Start accepts. Automaton has 7052 states and 10110 transitions. Word has length 120 [2023-04-02 05:22:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:30,423 INFO L495 AbstractCegarLoop]: Abstraction has 7052 states and 10110 transitions. [2023-04-02 05:22:30,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7052 states and 10110 transitions. [2023-04-02 05:22:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:22:30,426 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:30,426 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] [2023-04-02 05:22:30,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:22:30,426 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:30,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:30,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1096374668, now seen corresponding path program 1 times [2023-04-02 05:22:30,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:30,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853557565] [2023-04-02 05:22:30,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:30,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:22:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:22:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:22:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:22:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:22:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:22:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:30,915 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 05:22:30,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:30,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853557565] [2023-04-02 05:22:30,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853557565] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:30,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:30,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:22:30,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147416798] [2023-04-02 05:22:30,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:30,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:22:30,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:30,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:22:30,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:22:30,917 INFO L87 Difference]: Start difference. First operand 7052 states and 10110 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:36,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:36,049 INFO L93 Difference]: Finished difference Result 16794 states and 24029 transitions. [2023-04-02 05:22:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:22:36,050 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:22:36,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:36,087 INFO L225 Difference]: With dead ends: 16794 [2023-04-02 05:22:36,087 INFO L226 Difference]: Without dead ends: 9888 [2023-04-02 05:22:36,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:22:36,104 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1899 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:36,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 74 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:22:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9888 states. [2023-04-02 05:22:37,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9888 to 7474. [2023-04-02 05:22:37,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7474 states, 5674 states have (on average 1.4589354952414522) internal successors, (8278), 5857 states have internal predecessors, (8278), 809 states have call successors, (809), 809 states have call predecessors, (809), 990 states have return successors, (1651), 807 states have call predecessors, (1651), 808 states have call successors, (1651) [2023-04-02 05:22:37,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7474 states to 7474 states and 10738 transitions. [2023-04-02 05:22:37,720 INFO L78 Accepts]: Start accepts. Automaton has 7474 states and 10738 transitions. Word has length 120 [2023-04-02 05:22:37,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:37,720 INFO L495 AbstractCegarLoop]: Abstraction has 7474 states and 10738 transitions. [2023-04-02 05:22:37,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7474 states and 10738 transitions. [2023-04-02 05:22:37,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 05:22:37,722 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:37,722 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] [2023-04-02 05:22:37,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:22:37,722 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:37,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1355417444, now seen corresponding path program 1 times [2023-04-02 05:22:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:37,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158265355] [2023-04-02 05:22:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:37,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:22:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 05:22:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 05:22:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 05:22:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 05:22:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 05:22:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:38,220 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 05:22:38,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:38,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158265355] [2023-04-02 05:22:38,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158265355] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:38,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:38,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:22:38,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396667617] [2023-04-02 05:22:38,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:38,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:22:38,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:38,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:22:38,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:22:38,222 INFO L87 Difference]: Start difference. First operand 7474 states and 10738 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:43,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:43,600 INFO L93 Difference]: Finished difference Result 19089 states and 27412 transitions. [2023-04-02 05:22:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 05:22:43,601 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-04-02 05:22:43,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:43,636 INFO L225 Difference]: With dead ends: 19089 [2023-04-02 05:22:43,637 INFO L226 Difference]: Without dead ends: 11725 [2023-04-02 05:22:43,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:22:43,650 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1687 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:43,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 78 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:22:43,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11725 states. [2023-04-02 05:22:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11725 to 7617. [2023-04-02 05:22:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7617 states, 5772 states have (on average 1.4603257103257103) internal successors, (8429), 5980 states have internal predecessors, (8429), 819 states have call successors, (819), 819 states have call predecessors, (819), 1025 states have return successors, (1701), 817 states have call predecessors, (1701), 818 states have call successors, (1701) [2023-04-02 05:22:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7617 states to 7617 states and 10949 transitions. [2023-04-02 05:22:45,335 INFO L78 Accepts]: Start accepts. Automaton has 7617 states and 10949 transitions. Word has length 120 [2023-04-02 05:22:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:45,335 INFO L495 AbstractCegarLoop]: Abstraction has 7617 states and 10949 transitions. [2023-04-02 05:22:45,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-02 05:22:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7617 states and 10949 transitions. [2023-04-02 05:22:45,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-04-02 05:22:45,336 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:45,336 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] [2023-04-02 05:22:45,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:22:45,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:45,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2060739294, now seen corresponding path program 1 times [2023-04-02 05:22:45,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:45,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983482140] [2023-04-02 05:22:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 05:22:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 05:22:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 05:22:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 05:22:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 05:22:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 05:22:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 05:22:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:45,881 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 05:22:45,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:45,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983482140] [2023-04-02 05:22:45,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983482140] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:45,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:45,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:22:45,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657800815] [2023-04-02 05:22:45,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:45,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:22:45,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:45,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:22:45,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:22:45,883 INFO L87 Difference]: Start difference. First operand 7617 states and 10949 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:22:49,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:22:49,562 INFO L93 Difference]: Finished difference Result 14943 states and 21528 transitions. [2023-04-02 05:22:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:22:49,562 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2023-04-02 05:22:49,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:22:49,580 INFO L225 Difference]: With dead ends: 14943 [2023-04-02 05:22:49,580 INFO L226 Difference]: Without dead ends: 9221 [2023-04-02 05:22:49,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:22:49,590 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 1172 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:22:49,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 115 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:22:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9221 states. [2023-04-02 05:22:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9221 to 8483. [2023-04-02 05:22:51,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8483 states, 6433 states have (on average 1.4391419244520443) internal successors, (9258), 6582 states have internal predecessors, (9258), 951 states have call successors, (951), 951 states have call predecessors, (951), 1098 states have return successors, (1863), 949 states have call predecessors, (1863), 950 states have call successors, (1863) [2023-04-02 05:22:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8483 states to 8483 states and 12072 transitions. [2023-04-02 05:22:51,645 INFO L78 Accepts]: Start accepts. Automaton has 8483 states and 12072 transitions. Word has length 121 [2023-04-02 05:22:51,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:22:51,645 INFO L495 AbstractCegarLoop]: Abstraction has 8483 states and 12072 transitions. [2023-04-02 05:22:51,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:22:51,645 INFO L276 IsEmpty]: Start isEmpty. Operand 8483 states and 12072 transitions. [2023-04-02 05:22:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-02 05:22:51,650 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:22:51,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:22:51,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:22:51,650 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:22:51,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:22:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1818451340, now seen corresponding path program 1 times [2023-04-02 05:22:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:22:51,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434912059] [2023-04-02 05:22:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:22:51,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:22:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:22:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:22:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:22:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:22:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:22:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:22:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:22:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:22:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:22:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:22:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:22:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:22:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:22:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 05:22:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 05:22:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:22:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 05:22:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 05:22:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 05:22:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:22:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:22:53,108 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 05:22:53,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:22:53,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434912059] [2023-04-02 05:22:53,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434912059] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:22:53,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:22:53,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:22:53,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988107857] [2023-04-02 05:22:53,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:22:53,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:22:53,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:22:53,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:22:53,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:22:53,115 INFO L87 Difference]: Start difference. First operand 8483 states and 12072 transitions. Second operand has 25 states, 25 states have (on average 4.36) internal successors, (109), 17 states have internal predecessors, (109), 4 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 05:23:27,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:23:27,348 INFO L93 Difference]: Finished difference Result 17455 states and 25134 transitions. [2023-04-02 05:23:27,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2023-04-02 05:23:27,349 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.36) internal successors, (109), 17 states have internal predecessors, (109), 4 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) Word has length 172 [2023-04-02 05:23:27,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:23:27,383 INFO L225 Difference]: With dead ends: 17455 [2023-04-02 05:23:27,383 INFO L226 Difference]: Without dead ends: 15125 [2023-04-02 05:23:27,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49669 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=12244, Invalid=104378, Unknown=0, NotChecked=0, Total=116622 [2023-04-02 05:23:27,399 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 4720 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 11236 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4749 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 11795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 11236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:23:27,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4749 Valid, 701 Invalid, 11795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [559 Valid, 11236 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 05:23:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15125 states. [2023-04-02 05:23:30,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15125 to 14114. [2023-04-02 05:23:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14114 states, 10717 states have (on average 1.444714005785201) internal successors, (15483), 10927 states have internal predecessors, (15483), 1594 states have call successors, (1594), 1594 states have call predecessors, (1594), 1802 states have return successors, (3127), 1592 states have call predecessors, (3127), 1593 states have call successors, (3127) [2023-04-02 05:23:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14114 states to 14114 states and 20204 transitions. [2023-04-02 05:23:30,350 INFO L78 Accepts]: Start accepts. Automaton has 14114 states and 20204 transitions. Word has length 172 [2023-04-02 05:23:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:23:30,350 INFO L495 AbstractCegarLoop]: Abstraction has 14114 states and 20204 transitions. [2023-04-02 05:23:30,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.36) internal successors, (109), 17 states have internal predecessors, (109), 4 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-02 05:23:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 14114 states and 20204 transitions. [2023-04-02 05:23:30,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-02 05:23:30,355 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:23:30,356 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:30,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:23:30,356 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:23:30,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:23:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash -307476988, now seen corresponding path program 1 times [2023-04-02 05:23:30,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:23:30,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968367592] [2023-04-02 05:23:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:23:30,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:23:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:23:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:23:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 05:23:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 05:23:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 05:23:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 05:23:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 05:23:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:23:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 05:23:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 05:23:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 05:23:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 05:23:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 05:23:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 05:23:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 05:23:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:23:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 05:23:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 05:23:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 05:23:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 05:23:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:23:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 05:23:31,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:23:31,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968367592] [2023-04-02 05:23:31,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968367592] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:23:31,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:23:31,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-04-02 05:23:31,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930500465] [2023-04-02 05:23:31,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:23:31,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:23:31,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:23:31,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:23:31,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:23:31,565 INFO L87 Difference]: Start difference. First operand 14114 states and 20204 transitions. Second operand has 25 states, 25 states have (on average 4.36) internal successors, (109), 17 states have internal predecessors, (109), 4 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 05:24:07,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:24:07,454 INFO L93 Difference]: Finished difference Result 26598 states and 38624 transitions. [2023-04-02 05:24:07,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2023-04-02 05:24:07,455 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.36) internal successors, (109), 17 states have internal predecessors, (109), 4 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 172 [2023-04-02 05:24:07,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:24:07,506 INFO L225 Difference]: With dead ends: 26598 [2023-04-02 05:24:07,507 INFO L226 Difference]: Without dead ends: 24100 [2023-04-02 05:24:07,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47766 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=11961, Invalid=100599, Unknown=0, NotChecked=0, Total=112560 [2023-04-02 05:24:07,523 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 5117 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 10194 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 10793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 10194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:24:07,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 670 Invalid, 10793 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [599 Valid, 10194 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 05:24:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24100 states. [2023-04-02 05:24:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24100 to 21277. [2023-04-02 05:24:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21277 states, 16169 states have (on average 1.4511101490506524) internal successors, (23463), 16466 states have internal predecessors, (23463), 2406 states have call successors, (2406), 2406 states have call predecessors, (2406), 2701 states have return successors, (4755), 2404 states have call predecessors, (4755), 2405 states have call successors, (4755) [2023-04-02 05:24:12,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21277 states to 21277 states and 30624 transitions. [2023-04-02 05:24:12,353 INFO L78 Accepts]: Start accepts. Automaton has 21277 states and 30624 transitions. Word has length 172 [2023-04-02 05:24:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:24:12,353 INFO L495 AbstractCegarLoop]: Abstraction has 21277 states and 30624 transitions. [2023-04-02 05:24:12,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.36) internal successors, (109), 17 states have internal predecessors, (109), 4 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 05:24:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 21277 states and 30624 transitions. [2023-04-02 05:24:12,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-02 05:24:12,358 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:24:12,358 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:12,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 05:24:12,359 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:24:12,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:24:12,359 INFO L85 PathProgramCache]: Analyzing trace with hash 134057076, now seen corresponding path program 1 times [2023-04-02 05:24:12,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:24:12,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873843508] [2023-04-02 05:24:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:24:12,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:24:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat