/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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:45:42,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:45:42,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:45:42,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:45:42,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:45:42,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:45:42,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:45:42,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:45:42,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:45:42,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:45:42,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:45:42,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:45:42,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:45:42,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:45:42,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:45:42,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:45:42,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:45:42,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:45:42,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:45:42,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:45:42,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:45:42,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:45:42,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:45:42,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:45:42,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:45:42,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:45:42,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:45:42,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:45:42,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:45:42,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:45:42,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:45:42,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:45:42,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:45:42,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:45:42,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:45:42,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:45:42,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:45:42,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:45:42,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:45:42,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:45:42,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:45:42,993 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 05:45:43,019 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:45:43,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:45:43,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:45:43,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:45:43,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:45:43,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:45:43,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:45:43,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:45:43,022 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:45:43,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:45:43,022 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:45:43,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:45:43,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:45:43,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:45:43,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:45:43,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:45:43,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:45:43,023 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:45:43,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:45:43,023 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:45:43,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:45:43,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:45:43,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:45:43,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:45:43,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:45:43,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:45:43,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:45:43,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:45:43,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:45:43,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:45:43,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:45:43,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:45:43,025 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:45:43,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:45:43,025 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:45:43,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:45:43,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:45:43,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:45:43,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:45:43,264 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:45:43,265 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:45:43,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-04-02 05:45:44,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:45:44,562 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:45:44,563 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-04-02 05:45:44,572 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2848bd63b/b4e80a30bc484b66a7c6905f12c20f10/FLAGb734fe0ae [2023-04-02 05:45:44,585 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2848bd63b/b4e80a30bc484b66a7c6905f12c20f10 [2023-04-02 05:45:44,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:45:44,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:45:44,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:45:44,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:45:44,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:45:44,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:45:44" (1/1) ... [2023-04-02 05:45:44,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b08db6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:44, skipping insertion in model container [2023-04-02 05:45:44,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:45:44" (1/1) ... [2023-04-02 05:45:44,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:45:44,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:45:44,917 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13790,13803] [2023-04-02 05:45:44,926 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14437,14450] [2023-04-02 05:45:44,935 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15670,15683] [2023-04-02 05:45:44,944 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16730,16743] [2023-04-02 05:45:44,988 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25121,25134] [2023-04-02 05:45:45,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:45:45,042 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:45:45,147 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13790,13803] [2023-04-02 05:45:45,155 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14437,14450] [2023-04-02 05:45:45,176 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15670,15683] [2023-04-02 05:45:45,198 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16730,16743] [2023-04-02 05:45:45,280 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-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25121,25134] [2023-04-02 05:45:45,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:45:45,357 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:45:45,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45 WrapperNode [2023-04-02 05:45:45,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:45:45,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:45:45,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:45:45,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:45:45,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:45:45,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:45:45,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:45:45,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:45:45,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (1/1) ... [2023-04-02 05:45:45,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:45:45,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:45:45,502 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 05:45:45,520 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 05:45:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:45:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:45:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:45:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:45:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:45:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:45:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:45:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:45:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:45:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:45:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:45:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:45:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:45:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:45:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:45:45,707 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:45:45,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:45:46,685 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:45:46,700 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:45:46,700 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 05:45:46,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:45:46 BoogieIcfgContainer [2023-04-02 05:45:46,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:45:46,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:45:46,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:45:46,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:45:46,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:45:44" (1/3) ... [2023-04-02 05:45:46,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17226d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:45:46, skipping insertion in model container [2023-04-02 05:45:46,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:45" (2/3) ... [2023-04-02 05:45:46,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17226d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:45:46, skipping insertion in model container [2023-04-02 05:45:46,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:45:46" (3/3) ... [2023-04-02 05:45:46,711 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-04-02 05:45:46,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:45:46,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-04-02 05:45:46,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:45:46,784 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;@6510b8f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:45:46,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-04-02 05:45:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 361 states have (on average 1.8337950138504155) internal successors, (662), 372 states have internal predecessors, (662), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 05:45:46,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 05:45:46,810 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:45:46,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:45:46,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:45:46,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:45:46,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1624510444, now seen corresponding path program 1 times [2023-04-02 05:45:46,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:45:46,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86445142] [2023-04-02 05:45:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:45:46,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:45:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:45:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:47,602 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 05:45:47,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:45:47,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86445142] [2023-04-02 05:45:47,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86445142] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:45:47,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:45:47,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:45:47,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899677305] [2023-04-02 05:45:47,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:45:47,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:45:47,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:45:47,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:45:47,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:45:47,646 INFO L87 Difference]: Start difference. First operand has 377 states, 361 states have (on average 1.8337950138504155) internal successors, (662), 372 states have internal predecessors, (662), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:45:49,410 INFO L93 Difference]: Finished difference Result 686 states and 1190 transitions. [2023-04-02 05:45:49,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:45:49,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2023-04-02 05:45:49,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:45:49,425 INFO L225 Difference]: With dead ends: 686 [2023-04-02 05:45:49,425 INFO L226 Difference]: Without dead ends: 526 [2023-04-02 05:45:49,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:45:49,438 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 381 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:45:49,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1183 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:45:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-04-02 05:45:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 524. [2023-04-02 05:45:49,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 516 states have (on average 1.4515503875968991) internal successors, (749), 520 states have internal predecessors, (749), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:49,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 752 transitions. [2023-04-02 05:45:49,528 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 752 transitions. Word has length 140 [2023-04-02 05:45:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:45:49,530 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 752 transitions. [2023-04-02 05:45:49,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:49,530 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 752 transitions. [2023-04-02 05:45:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 05:45:49,532 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:45:49,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:45:49,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:45:49,533 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:45:49,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:45:49,534 INFO L85 PathProgramCache]: Analyzing trace with hash 329904797, now seen corresponding path program 1 times [2023-04-02 05:45:49,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:45:49,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393539652] [2023-04-02 05:45:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:45:49,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:45:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:45:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:50,090 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 05:45:50,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:45:50,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393539652] [2023-04-02 05:45:50,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393539652] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:45:50,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:45:50,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:45:50,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80735113] [2023-04-02 05:45:50,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:45:50,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:45:50,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:45:50,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:45:50,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:45:50,093 INFO L87 Difference]: Start difference. First operand 524 states and 752 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:51,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:45:51,524 INFO L93 Difference]: Finished difference Result 1528 states and 2187 transitions. [2023-04-02 05:45:51,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:45:51,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2023-04-02 05:45:51,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:45:51,530 INFO L225 Difference]: With dead ends: 1528 [2023-04-02 05:45:51,530 INFO L226 Difference]: Without dead ends: 1017 [2023-04-02 05:45:51,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:45:51,536 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 1023 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:45:51,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1381 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:45:51,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2023-04-02 05:45:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 990. [2023-04-02 05:45:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 982 states have (on average 1.4378818737270875) internal successors, (1412), 986 states have internal predecessors, (1412), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1415 transitions. [2023-04-02 05:45:51,622 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1415 transitions. Word has length 140 [2023-04-02 05:45:51,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:45:51,623 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 1415 transitions. [2023-04-02 05:45:51,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1415 transitions. [2023-04-02 05:45:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-02 05:45:51,628 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:45:51,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:45:51,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:45:51,629 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:45:51,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:45:51,630 INFO L85 PathProgramCache]: Analyzing trace with hash 498634811, now seen corresponding path program 1 times [2023-04-02 05:45:51,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:45:51,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564726401] [2023-04-02 05:45:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:45:51,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:45:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:45:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:51,944 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 05:45:51,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:45:51,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564726401] [2023-04-02 05:45:51,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564726401] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:45:51,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:45:51,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:45:51,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393449097] [2023-04-02 05:45:51,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:45:51,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:45:51,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:45:51,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:45:51,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:45:51,949 INFO L87 Difference]: Start difference. First operand 990 states and 1415 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:53,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:45:53,491 INFO L93 Difference]: Finished difference Result 2924 states and 4175 transitions. [2023-04-02 05:45:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:45:53,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2023-04-02 05:45:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:45:53,498 INFO L225 Difference]: With dead ends: 2924 [2023-04-02 05:45:53,498 INFO L226 Difference]: Without dead ends: 1966 [2023-04-02 05:45:53,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:45:53,502 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 501 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:45:53,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1520 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:45:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2023-04-02 05:45:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 992. [2023-04-02 05:45:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 984 states have (on average 1.4369918699186992) internal successors, (1414), 988 states have internal predecessors, (1414), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1417 transitions. [2023-04-02 05:45:53,568 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1417 transitions. Word has length 141 [2023-04-02 05:45:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:45:53,568 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1417 transitions. [2023-04-02 05:45:53,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:53,569 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1417 transitions. [2023-04-02 05:45:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-04-02 05:45:53,572 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:45:53,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:45:53,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:45:53,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:45:53,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:45:53,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2136287395, now seen corresponding path program 1 times [2023-04-02 05:45:53,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:45:53,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983281611] [2023-04-02 05:45:53,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:45:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:45:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:45:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:53,874 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 05:45:53,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:45:53,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983281611] [2023-04-02 05:45:53,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983281611] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:45:53,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:45:53,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:45:53,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178175506] [2023-04-02 05:45:53,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:45:53,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:45:53,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:45:53,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:45:53,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:45:53,876 INFO L87 Difference]: Start difference. First operand 992 states and 1417 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:45:55,351 INFO L93 Difference]: Finished difference Result 2542 states and 3630 transitions. [2023-04-02 05:45:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:45:55,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2023-04-02 05:45:55,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:45:55,357 INFO L225 Difference]: With dead ends: 2542 [2023-04-02 05:45:55,357 INFO L226 Difference]: Without dead ends: 1732 [2023-04-02 05:45:55,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:45:55,359 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 439 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:45:55,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1400 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:45:55,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2023-04-02 05:45:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1705. [2023-04-02 05:45:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1697 states have (on average 1.4160282852091928) internal successors, (2403), 1701 states have internal predecessors, (2403), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2406 transitions. [2023-04-02 05:45:55,468 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2406 transitions. Word has length 142 [2023-04-02 05:45:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:45:55,468 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2406 transitions. [2023-04-02 05:45:55,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2406 transitions. [2023-04-02 05:45:55,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-04-02 05:45:55,472 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:45:55,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:45:55,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:45:55,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:45:55,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:45:55,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1857610368, now seen corresponding path program 1 times [2023-04-02 05:45:55,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:45:55,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037799008] [2023-04-02 05:45:55,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:45:55,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:45:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:55,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:45:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:56,001 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 05:45:56,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:45:56,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037799008] [2023-04-02 05:45:56,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037799008] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:45:56,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:45:56,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:45:56,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421866266] [2023-04-02 05:45:56,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:45:56,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:45:56,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:45:56,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:45:56,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:45:56,010 INFO L87 Difference]: Start difference. First operand 1705 states and 2406 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:57,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:45:57,611 INFO L93 Difference]: Finished difference Result 4840 states and 6821 transitions. [2023-04-02 05:45:57,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:45:57,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2023-04-02 05:45:57,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:45:57,621 INFO L225 Difference]: With dead ends: 4840 [2023-04-02 05:45:57,621 INFO L226 Difference]: Without dead ends: 3153 [2023-04-02 05:45:57,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:45:57,625 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 1498 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:45:57,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1354 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:45:57,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2023-04-02 05:45:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3131. [2023-04-02 05:45:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3123 states have (on average 1.4008965738072365) internal successors, (4375), 3127 states have internal predecessors, (4375), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:57,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 4378 transitions. [2023-04-02 05:45:57,820 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 4378 transitions. Word has length 142 [2023-04-02 05:45:57,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:45:57,821 INFO L495 AbstractCegarLoop]: Abstraction has 3131 states and 4378 transitions. [2023-04-02 05:45:57,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 4378 transitions. [2023-04-02 05:45:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-04-02 05:45:57,825 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:45:57,825 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, 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 05:45:57,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:45:57,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:45:57,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:45:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash 896020894, now seen corresponding path program 1 times [2023-04-02 05:45:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:45:57,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443225934] [2023-04-02 05:45:57,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:45:57,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:45:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:58,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:45:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:45:58,201 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 05:45:58,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:45:58,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443225934] [2023-04-02 05:45:58,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443225934] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:45:58,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:45:58,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:45:58,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211596648] [2023-04-02 05:45:58,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:45:58,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:45:58,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:45:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:45:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:45:58,203 INFO L87 Difference]: Start difference. First operand 3131 states and 4378 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:45:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:45:59,862 INFO L93 Difference]: Finished difference Result 9116 states and 12697 transitions. [2023-04-02 05:45:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:45:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2023-04-02 05:45:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:45:59,881 INFO L225 Difference]: With dead ends: 9116 [2023-04-02 05:45:59,881 INFO L226 Difference]: Without dead ends: 6045 [2023-04-02 05:45:59,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:45:59,886 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 1007 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:45:59,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1354 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:45:59,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2023-04-02 05:46:00,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 6014. [2023-04-02 05:46:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 6006 states have (on average 1.3816183816183816) internal successors, (8298), 6010 states have internal predecessors, (8298), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 8301 transitions. [2023-04-02 05:46:00,260 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 8301 transitions. Word has length 142 [2023-04-02 05:46:00,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:00,260 INFO L495 AbstractCegarLoop]: Abstraction has 6014 states and 8301 transitions. [2023-04-02 05:46:00,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 8301 transitions. [2023-04-02 05:46:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-02 05:46:00,271 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:00,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:00,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:46:00,271 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:00,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1805169692, now seen corresponding path program 1 times [2023-04-02 05:46:00,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:00,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719486206] [2023-04-02 05:46:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:00,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:00,513 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 05:46:00,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:00,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719486206] [2023-04-02 05:46:00,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719486206] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:00,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:00,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:46:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559754626] [2023-04-02 05:46:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:00,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:46:00,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:00,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:46:00,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:46:00,515 INFO L87 Difference]: Start difference. First operand 6014 states and 8301 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:02,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:02,024 INFO L93 Difference]: Finished difference Result 17882 states and 24662 transitions. [2023-04-02 05:46:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:46:02,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2023-04-02 05:46:02,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:02,055 INFO L225 Difference]: With dead ends: 17882 [2023-04-02 05:46:02,055 INFO L226 Difference]: Without dead ends: 11963 [2023-04-02 05:46:02,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:46:02,064 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 487 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:02,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1094 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:46:02,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11963 states. [2023-04-02 05:46:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11963 to 6024. [2023-04-02 05:46:02,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6024 states, 6016 states have (on average 1.3809840425531914) internal successors, (8308), 6020 states have internal predecessors, (8308), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6024 states to 6024 states and 8311 transitions. [2023-04-02 05:46:02,498 INFO L78 Accepts]: Start accepts. Automaton has 6024 states and 8311 transitions. Word has length 143 [2023-04-02 05:46:02,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:02,499 INFO L495 AbstractCegarLoop]: Abstraction has 6024 states and 8311 transitions. [2023-04-02 05:46:02,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:02,499 INFO L276 IsEmpty]: Start isEmpty. Operand 6024 states and 8311 transitions. [2023-04-02 05:46:02,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-02 05:46:02,506 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:02,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:02,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:46:02,506 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:02,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash -310905569, now seen corresponding path program 1 times [2023-04-02 05:46:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222800988] [2023-04-02 05:46:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:02,906 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 05:46:02,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:02,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222800988] [2023-04-02 05:46:02,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222800988] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:02,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:02,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:46:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997819785] [2023-04-02 05:46:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:02,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:46:02,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:46:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:46:02,908 INFO L87 Difference]: Start difference. First operand 6024 states and 8311 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:05,022 INFO L93 Difference]: Finished difference Result 17462 states and 24020 transitions. [2023-04-02 05:46:05,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:46:05,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2023-04-02 05:46:05,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:05,047 INFO L225 Difference]: With dead ends: 17462 [2023-04-02 05:46:05,048 INFO L226 Difference]: Without dead ends: 11543 [2023-04-02 05:46:05,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:05,061 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 1001 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:05,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1343 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:46:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11543 states. [2023-04-02 05:46:05,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11543 to 11512. [2023-04-02 05:46:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11512 states, 11504 states have (on average 1.361961057023644) internal successors, (15668), 11508 states have internal predecessors, (15668), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 15671 transitions. [2023-04-02 05:46:05,887 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 15671 transitions. Word has length 144 [2023-04-02 05:46:05,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:05,887 INFO L495 AbstractCegarLoop]: Abstraction has 11512 states and 15671 transitions. [2023-04-02 05:46:05,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:05,887 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 15671 transitions. [2023-04-02 05:46:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 05:46:05,901 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:05,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:05,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:46:05,901 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:05,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1947609987, now seen corresponding path program 1 times [2023-04-02 05:46:05,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:05,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735162066] [2023-04-02 05:46:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:06,139 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 05:46:06,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:06,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735162066] [2023-04-02 05:46:06,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735162066] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:06,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:06,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:46:06,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785148265] [2023-04-02 05:46:06,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:06,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:46:06,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:06,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:46:06,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:46:06,141 INFO L87 Difference]: Start difference. First operand 11512 states and 15671 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:09,265 INFO L93 Difference]: Finished difference Result 33376 states and 45549 transitions. [2023-04-02 05:46:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:46:09,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2023-04-02 05:46:09,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:09,306 INFO L225 Difference]: With dead ends: 33376 [2023-04-02 05:46:09,306 INFO L226 Difference]: Without dead ends: 22743 [2023-04-02 05:46:09,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:46:09,325 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 473 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:09,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1492 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 05:46:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22743 states. [2023-04-02 05:46:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22743 to 11532. [2023-04-02 05:46:10,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11532 states, 11524 states have (on average 1.3613328705310657) internal successors, (15688), 11528 states have internal predecessors, (15688), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:10,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11532 states to 11532 states and 15691 transitions. [2023-04-02 05:46:10,401 INFO L78 Accepts]: Start accepts. Automaton has 11532 states and 15691 transitions. Word has length 145 [2023-04-02 05:46:10,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:10,401 INFO L495 AbstractCegarLoop]: Abstraction has 11532 states and 15691 transitions. [2023-04-02 05:46:10,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 11532 states and 15691 transitions. [2023-04-02 05:46:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-02 05:46:10,416 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:10,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:10,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:46:10,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:10,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:10,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1212554678, now seen corresponding path program 1 times [2023-04-02 05:46:10,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:10,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552556198] [2023-04-02 05:46:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:10,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:10,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:10,858 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 05:46:10,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:10,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552556198] [2023-04-02 05:46:10,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552556198] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:10,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:10,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:46:10,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341945891] [2023-04-02 05:46:10,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:10,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:46:10,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:10,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:46:10,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:10,860 INFO L87 Difference]: Start difference. First operand 11532 states and 15691 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:13,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:13,084 INFO L93 Difference]: Finished difference Result 23686 states and 32065 transitions. [2023-04-02 05:46:13,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:46:13,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2023-04-02 05:46:13,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:13,105 INFO L225 Difference]: With dead ends: 23686 [2023-04-02 05:46:13,105 INFO L226 Difference]: Without dead ends: 12383 [2023-04-02 05:46:13,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:13,119 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 935 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:13,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1792 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 05:46:13,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12383 states. [2023-04-02 05:46:14,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12383 to 12014. [2023-04-02 05:46:14,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12014 states, 12006 states have (on average 1.3509078793936364) internal successors, (16219), 12010 states have internal predecessors, (16219), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12014 states to 12014 states and 16222 transitions. [2023-04-02 05:46:14,106 INFO L78 Accepts]: Start accepts. Automaton has 12014 states and 16222 transitions. Word has length 146 [2023-04-02 05:46:14,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:14,106 INFO L495 AbstractCegarLoop]: Abstraction has 12014 states and 16222 transitions. [2023-04-02 05:46:14,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 12014 states and 16222 transitions. [2023-04-02 05:46:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-02 05:46:14,118 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:14,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:14,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:46:14,118 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:14,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:14,119 INFO L85 PathProgramCache]: Analyzing trace with hash 572554528, now seen corresponding path program 1 times [2023-04-02 05:46:14,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:14,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327737407] [2023-04-02 05:46:14,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:14,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:14,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:14,485 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 05:46:14,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:14,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327737407] [2023-04-02 05:46:14,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327737407] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:14,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:14,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:46:14,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10631104] [2023-04-02 05:46:14,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:14,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:46:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:14,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:46:14,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:46:14,486 INFO L87 Difference]: Start difference. First operand 12014 states and 16222 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:16,134 INFO L93 Difference]: Finished difference Result 20415 states and 27608 transitions. [2023-04-02 05:46:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:46:16,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2023-04-02 05:46:16,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:16,149 INFO L225 Difference]: With dead ends: 20415 [2023-04-02 05:46:16,149 INFO L226 Difference]: Without dead ends: 8577 [2023-04-02 05:46:16,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:16,167 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 65 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:16,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1574 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:46:16,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8577 states. [2023-04-02 05:46:16,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8577 to 8577. [2023-04-02 05:46:16,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8577 states, 8569 states have (on average 1.3518496907457114) internal successors, (11584), 8573 states have internal predecessors, (11584), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 11587 transitions. [2023-04-02 05:46:16,933 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 11587 transitions. Word has length 146 [2023-04-02 05:46:16,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:16,934 INFO L495 AbstractCegarLoop]: Abstraction has 8577 states and 11587 transitions. [2023-04-02 05:46:16,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 11587 transitions. [2023-04-02 05:46:16,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:46:16,942 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:16,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:16,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:46:16,943 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:16,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:16,943 INFO L85 PathProgramCache]: Analyzing trace with hash 119303733, now seen corresponding path program 1 times [2023-04-02 05:46:16,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:16,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143054491] [2023-04-02 05:46:16,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:17,339 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 05:46:17,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:17,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143054491] [2023-04-02 05:46:17,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143054491] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:17,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:17,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:46:17,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362612756] [2023-04-02 05:46:17,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:17,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:46:17,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:17,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:46:17,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:17,341 INFO L87 Difference]: Start difference. First operand 8577 states and 11587 transitions. Second operand has 6 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:19,282 INFO L93 Difference]: Finished difference Result 16304 states and 22230 transitions. [2023-04-02 05:46:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:46:19,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2023-04-02 05:46:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:19,295 INFO L225 Difference]: With dead ends: 16304 [2023-04-02 05:46:19,295 INFO L226 Difference]: Without dead ends: 8577 [2023-04-02 05:46:19,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:46:19,307 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 1358 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:19,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 486 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:46:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8577 states. [2023-04-02 05:46:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8577 to 8577. [2023-04-02 05:46:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8577 states, 8569 states have (on average 1.3420469132920994) internal successors, (11500), 8573 states have internal predecessors, (11500), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 11503 transitions. [2023-04-02 05:46:20,178 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 11503 transitions. Word has length 151 [2023-04-02 05:46:20,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:20,178 INFO L495 AbstractCegarLoop]: Abstraction has 8577 states and 11503 transitions. [2023-04-02 05:46:20,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 11503 transitions. [2023-04-02 05:46:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:46:20,185 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:20,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:20,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:46:20,186 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:20,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1646195984, now seen corresponding path program 1 times [2023-04-02 05:46:20,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:20,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104438705] [2023-04-02 05:46:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:20,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:20,622 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 05:46:20,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:20,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104438705] [2023-04-02 05:46:20,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104438705] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:20,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:20,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:46:20,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275680163] [2023-04-02 05:46:20,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:20,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:46:20,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:46:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:46:20,624 INFO L87 Difference]: Start difference. First operand 8577 states and 11503 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:22,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:22,273 INFO L93 Difference]: Finished difference Result 15230 states and 20471 transitions. [2023-04-02 05:46:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:46:22,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2023-04-02 05:46:22,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:22,286 INFO L225 Difference]: With dead ends: 15230 [2023-04-02 05:46:22,286 INFO L226 Difference]: Without dead ends: 8577 [2023-04-02 05:46:22,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:22,294 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 53 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:22,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1550 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:46:22,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8577 states. [2023-04-02 05:46:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8577 to 8577. [2023-04-02 05:46:23,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8577 states, 8569 states have (on average 1.341930213560509) internal successors, (11499), 8573 states have internal predecessors, (11499), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 11502 transitions. [2023-04-02 05:46:23,161 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 11502 transitions. Word has length 151 [2023-04-02 05:46:23,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:23,161 INFO L495 AbstractCegarLoop]: Abstraction has 8577 states and 11502 transitions. [2023-04-02 05:46:23,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:23,161 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 11502 transitions. [2023-04-02 05:46:23,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 05:46:23,169 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:23,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:23,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:46:23,170 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:23,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1412225171, now seen corresponding path program 1 times [2023-04-02 05:46:23,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:23,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080166450] [2023-04-02 05:46:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:23,426 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 05:46:23,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:23,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080166450] [2023-04-02 05:46:23,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080166450] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:23,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:23,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:46:23,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364517409] [2023-04-02 05:46:23,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:23,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:46:23,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:23,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:46:23,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:46:23,428 INFO L87 Difference]: Start difference. First operand 8577 states and 11502 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:26,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:26,120 INFO L93 Difference]: Finished difference Result 20321 states and 27442 transitions. [2023-04-02 05:46:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:46:26,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2023-04-02 05:46:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:26,137 INFO L225 Difference]: With dead ends: 20321 [2023-04-02 05:46:26,137 INFO L226 Difference]: Without dead ends: 13082 [2023-04-02 05:46:26,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:46:26,144 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 420 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:26,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1388 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:46:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13082 states. [2023-04-02 05:46:27,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13082 to 13062. [2023-04-02 05:46:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13062 states, 13054 states have (on average 1.3218170675654972) internal successors, (17255), 13058 states have internal predecessors, (17255), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13062 states to 13062 states and 17258 transitions. [2023-04-02 05:46:27,563 INFO L78 Accepts]: Start accepts. Automaton has 13062 states and 17258 transitions. Word has length 151 [2023-04-02 05:46:27,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:27,563 INFO L495 AbstractCegarLoop]: Abstraction has 13062 states and 17258 transitions. [2023-04-02 05:46:27,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:27,564 INFO L276 IsEmpty]: Start isEmpty. Operand 13062 states and 17258 transitions. [2023-04-02 05:46:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-04-02 05:46:27,575 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:27,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:27,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:46:27,576 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:27,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:27,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1601831898, now seen corresponding path program 1 times [2023-04-02 05:46:27,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:27,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054965216] [2023-04-02 05:46:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:27,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:27,924 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 05:46:27,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:27,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054965216] [2023-04-02 05:46:27,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054965216] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:27,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:27,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:46:27,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512531258] [2023-04-02 05:46:27,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:27,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:46:27,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:27,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:46:27,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:46:27,926 INFO L87 Difference]: Start difference. First operand 13062 states and 17258 transitions. Second operand has 9 states, 8 states have (on average 18.875) internal successors, (151), 7 states have internal predecessors, (151), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:33,187 INFO L93 Difference]: Finished difference Result 38115 states and 52958 transitions. [2023-04-02 05:46:33,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:46:33,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.875) internal successors, (151), 7 states have internal predecessors, (151), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2023-04-02 05:46:33,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:33,232 INFO L225 Difference]: With dead ends: 38115 [2023-04-02 05:46:33,232 INFO L226 Difference]: Without dead ends: 27687 [2023-04-02 05:46:33,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:46:33,247 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 5148 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:33,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 1248 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:46:33,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27687 states. [2023-04-02 05:46:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27687 to 18062. [2023-04-02 05:46:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18062 states, 18054 states have (on average 1.3502270964883127) internal successors, (24377), 18058 states have internal predecessors, (24377), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18062 states to 18062 states and 24380 transitions. [2023-04-02 05:46:35,758 INFO L78 Accepts]: Start accepts. Automaton has 18062 states and 24380 transitions. Word has length 154 [2023-04-02 05:46:35,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:35,759 INFO L495 AbstractCegarLoop]: Abstraction has 18062 states and 24380 transitions. [2023-04-02 05:46:35,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.875) internal successors, (151), 7 states have internal predecessors, (151), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 18062 states and 24380 transitions. [2023-04-02 05:46:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-04-02 05:46:35,769 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:35,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:35,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:46:35,770 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:35,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:35,770 INFO L85 PathProgramCache]: Analyzing trace with hash -196280515, now seen corresponding path program 1 times [2023-04-02 05:46:35,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:35,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429376685] [2023-04-02 05:46:35,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:35,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:36,174 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 05:46:36,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:36,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429376685] [2023-04-02 05:46:36,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429376685] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:36,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:36,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:46:36,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165894337] [2023-04-02 05:46:36,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:36,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:46:36,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:36,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:46:36,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:46:36,176 INFO L87 Difference]: Start difference. First operand 18062 states and 24380 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:39,036 INFO L93 Difference]: Finished difference Result 31901 states and 42972 transitions. [2023-04-02 05:46:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:46:39,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2023-04-02 05:46:39,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:39,057 INFO L225 Difference]: With dead ends: 31901 [2023-04-02 05:46:39,058 INFO L226 Difference]: Without dead ends: 13901 [2023-04-02 05:46:39,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:39,077 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 43 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:39,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1507 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:46:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13901 states. [2023-04-02 05:46:41,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13901 to 13901. [2023-04-02 05:46:41,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13901 states, 13893 states have (on average 1.3435543079248542) internal successors, (18666), 13897 states have internal predecessors, (18666), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:41,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13901 states to 13901 states and 18669 transitions. [2023-04-02 05:46:41,196 INFO L78 Accepts]: Start accepts. Automaton has 13901 states and 18669 transitions. Word has length 154 [2023-04-02 05:46:41,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:41,196 INFO L495 AbstractCegarLoop]: Abstraction has 13901 states and 18669 transitions. [2023-04-02 05:46:41,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:41,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13901 states and 18669 transitions. [2023-04-02 05:46:41,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 05:46:41,203 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:41,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:41,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:46:41,204 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:41,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:41,204 INFO L85 PathProgramCache]: Analyzing trace with hash 73146593, now seen corresponding path program 1 times [2023-04-02 05:46:41,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:41,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027530393] [2023-04-02 05:46:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:41,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:41,574 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 05:46:41,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:41,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027530393] [2023-04-02 05:46:41,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027530393] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:41,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:41,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:46:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965461422] [2023-04-02 05:46:41,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:41,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:46:41,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:41,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:46:41,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:46:41,576 INFO L87 Difference]: Start difference. First operand 13901 states and 18669 transitions. Second operand has 6 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:44,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:44,518 INFO L93 Difference]: Finished difference Result 25159 states and 33962 transitions. [2023-04-02 05:46:44,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:46:44,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2023-04-02 05:46:44,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:44,536 INFO L225 Difference]: With dead ends: 25159 [2023-04-02 05:46:44,536 INFO L226 Difference]: Without dead ends: 13901 [2023-04-02 05:46:44,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:46:44,545 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1295 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:44,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 466 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:46:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13901 states. [2023-04-02 05:46:46,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13901 to 13901. [2023-04-02 05:46:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13901 states, 13893 states have (on average 1.3234722522133449) internal successors, (18387), 13897 states have internal predecessors, (18387), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13901 states to 13901 states and 18390 transitions. [2023-04-02 05:46:46,622 INFO L78 Accepts]: Start accepts. Automaton has 13901 states and 18390 transitions. Word has length 160 [2023-04-02 05:46:46,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:46,623 INFO L495 AbstractCegarLoop]: Abstraction has 13901 states and 18390 transitions. [2023-04-02 05:46:46,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 13901 states and 18390 transitions. [2023-04-02 05:46:46,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 05:46:46,629 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:46,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:46,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 05:46:46,629 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:46,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash 391426236, now seen corresponding path program 1 times [2023-04-02 05:46:46,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:46,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974206397] [2023-04-02 05:46:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:46,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:47,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:47,229 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 05:46:47,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:47,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974206397] [2023-04-02 05:46:47,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974206397] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:47,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:47,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:46:47,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956287537] [2023-04-02 05:46:47,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:47,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:46:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:47,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:46:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:46:47,233 INFO L87 Difference]: Start difference. First operand 13901 states and 18390 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 8 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:46:52,173 INFO L93 Difference]: Finished difference Result 31729 states and 43181 transitions. [2023-04-02 05:46:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:46:52,174 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 8 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2023-04-02 05:46:52,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:46:52,212 INFO L225 Difference]: With dead ends: 31729 [2023-04-02 05:46:52,212 INFO L226 Difference]: Without dead ends: 23963 [2023-04-02 05:46:52,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:46:52,228 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 1681 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:46:52,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 1117 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:46:52,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23963 states. [2023-04-02 05:46:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23963 to 23961. [2023-04-02 05:46:56,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23961 states, 23953 states have (on average 1.3325679455600552) internal successors, (31919), 23957 states have internal predecessors, (31919), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23961 states to 23961 states and 31922 transitions. [2023-04-02 05:46:56,233 INFO L78 Accepts]: Start accepts. Automaton has 23961 states and 31922 transitions. Word has length 160 [2023-04-02 05:46:56,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:46:56,233 INFO L495 AbstractCegarLoop]: Abstraction has 23961 states and 31922 transitions. [2023-04-02 05:46:56,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 8 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:46:56,234 INFO L276 IsEmpty]: Start isEmpty. Operand 23961 states and 31922 transitions. [2023-04-02 05:46:56,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 05:46:56,243 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:46:56,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:46:56,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 05:46:56,244 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:46:56,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:46:56,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1445836076, now seen corresponding path program 1 times [2023-04-02 05:46:56,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:46:56,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037194217] [2023-04-02 05:46:56,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:46:56,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:46:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:46:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:46:56,805 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 05:46:56,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:46:56,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037194217] [2023-04-02 05:46:56,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037194217] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:46:56,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:46:56,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:46:56,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092796708] [2023-04-02 05:46:56,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:46:56,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:46:56,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:46:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:46:56,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:46:56,808 INFO L87 Difference]: Start difference. First operand 23961 states and 31922 transitions. Second operand has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 8 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:09,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:47:09,993 INFO L93 Difference]: Finished difference Result 70441 states and 97496 transitions. [2023-04-02 05:47:09,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:47:09,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 8 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2023-04-02 05:47:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:47:10,097 INFO L225 Difference]: With dead ends: 70441 [2023-04-02 05:47:10,098 INFO L226 Difference]: Without dead ends: 59172 [2023-04-02 05:47:10,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:47:10,120 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 4883 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:47:10,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 2235 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:47:10,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59172 states. [2023-04-02 05:47:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59172 to 37138. [2023-04-02 05:47:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37138 states, 37130 states have (on average 1.3565849717209804) internal successors, (50370), 37134 states have internal predecessors, (50370), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:17,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37138 states to 37138 states and 50373 transitions. [2023-04-02 05:47:17,818 INFO L78 Accepts]: Start accepts. Automaton has 37138 states and 50373 transitions. Word has length 160 [2023-04-02 05:47:17,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:47:17,818 INFO L495 AbstractCegarLoop]: Abstraction has 37138 states and 50373 transitions. [2023-04-02 05:47:17,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 8 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:17,818 INFO L276 IsEmpty]: Start isEmpty. Operand 37138 states and 50373 transitions. [2023-04-02 05:47:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 05:47:17,828 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:47:17,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:47:17,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 05:47:17,828 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:47:17,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:47:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash -795856964, now seen corresponding path program 1 times [2023-04-02 05:47:17,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:47:17,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112245453] [2023-04-02 05:47:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:47:17,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:47:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:47:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:18,290 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 05:47:18,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:47:18,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112245453] [2023-04-02 05:47:18,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112245453] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:47:18,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:47:18,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:47:18,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901418155] [2023-04-02 05:47:18,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:47:18,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:47:18,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:47:18,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:47:18,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:47:18,292 INFO L87 Difference]: Start difference. First operand 37138 states and 50373 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:24,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:47:24,448 INFO L93 Difference]: Finished difference Result 46565 states and 63867 transitions. [2023-04-02 05:47:24,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:47:24,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2023-04-02 05:47:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:47:24,485 INFO L225 Difference]: With dead ends: 46565 [2023-04-02 05:47:24,485 INFO L226 Difference]: Without dead ends: 25662 [2023-04-02 05:47:24,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:47:24,514 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 530 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:47:24,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 899 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:47:24,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25662 states. [2023-04-02 05:47:29,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25662 to 25660. [2023-04-02 05:47:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25660 states, 25652 states have (on average 1.3201309839388742) internal successors, (33864), 25656 states have internal predecessors, (33864), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25660 states to 25660 states and 33867 transitions. [2023-04-02 05:47:29,418 INFO L78 Accepts]: Start accepts. Automaton has 25660 states and 33867 transitions. Word has length 160 [2023-04-02 05:47:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:47:29,418 INFO L495 AbstractCegarLoop]: Abstraction has 25660 states and 33867 transitions. [2023-04-02 05:47:29,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 25660 states and 33867 transitions. [2023-04-02 05:47:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 05:47:29,428 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:47:29,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:47:29,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 05:47:29,429 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:47:29,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:47:29,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1938500786, now seen corresponding path program 1 times [2023-04-02 05:47:29,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:47:29,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764978685] [2023-04-02 05:47:29,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:47:29,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:47:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:47:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:47:29,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:47:29,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764978685] [2023-04-02 05:47:29,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764978685] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:47:29,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:47:29,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:47:29,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132137787] [2023-04-02 05:47:29,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:47:29,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:47:29,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:47:29,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:47:29,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:47:29,824 INFO L87 Difference]: Start difference. First operand 25660 states and 33867 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:35,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:47:35,445 INFO L93 Difference]: Finished difference Result 48120 states and 63400 transitions. [2023-04-02 05:47:35,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:47:35,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2023-04-02 05:47:35,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:47:35,475 INFO L225 Difference]: With dead ends: 48120 [2023-04-02 05:47:35,475 INFO L226 Difference]: Without dead ends: 22728 [2023-04-02 05:47:35,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:47:35,496 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 941 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:47:35,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1228 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 05:47:35,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22728 states. [2023-04-02 05:47:40,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22728 to 22638. [2023-04-02 05:47:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22638 states, 22630 states have (on average 1.3136544410075122) internal successors, (29728), 22634 states have internal predecessors, (29728), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22638 states to 22638 states and 29731 transitions. [2023-04-02 05:47:40,114 INFO L78 Accepts]: Start accepts. Automaton has 22638 states and 29731 transitions. Word has length 160 [2023-04-02 05:47:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:47:40,114 INFO L495 AbstractCegarLoop]: Abstraction has 22638 states and 29731 transitions. [2023-04-02 05:47:40,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 22638 states and 29731 transitions. [2023-04-02 05:47:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-02 05:47:40,124 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:47:40,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:47:40,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 05:47:40,124 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:47:40,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:47:40,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1908309910, now seen corresponding path program 1 times [2023-04-02 05:47:40,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:47:40,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328465021] [2023-04-02 05:47:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:47:40,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:47:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:47:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:40,518 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 05:47:40,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:47:40,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328465021] [2023-04-02 05:47:40,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328465021] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:47:40,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:47:40,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:47:40,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179151971] [2023-04-02 05:47:40,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:47:40,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:47:40,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:47:40,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:47:40,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:47:40,520 INFO L87 Difference]: Start difference. First operand 22638 states and 29731 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:45,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:47:45,050 INFO L93 Difference]: Finished difference Result 31674 states and 41538 transitions. [2023-04-02 05:47:45,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:47:45,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2023-04-02 05:47:45,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:47:45,079 INFO L225 Difference]: With dead ends: 31674 [2023-04-02 05:47:45,079 INFO L226 Difference]: Without dead ends: 19761 [2023-04-02 05:47:45,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:47:45,091 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 21 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:47:45,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1463 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:47:45,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19761 states. [2023-04-02 05:47:48,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19761 to 19761. [2023-04-02 05:47:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19761 states, 19753 states have (on average 1.3117501139067484) internal successors, (25911), 19757 states have internal predecessors, (25911), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19761 states to 19761 states and 25914 transitions. [2023-04-02 05:47:48,874 INFO L78 Accepts]: Start accepts. Automaton has 19761 states and 25914 transitions. Word has length 162 [2023-04-02 05:47:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:47:48,874 INFO L495 AbstractCegarLoop]: Abstraction has 19761 states and 25914 transitions. [2023-04-02 05:47:48,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:47:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 19761 states and 25914 transitions. [2023-04-02 05:47:48,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-04-02 05:47:48,883 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:47:48,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:47:48,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 05:47:48,883 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:47:48,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:47:48,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1316461916, now seen corresponding path program 1 times [2023-04-02 05:47:48,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:47:48,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093662838] [2023-04-02 05:47:48,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:47:48,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:47:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:49,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:47:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:47:49,776 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 05:47:49,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:47:49,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093662838] [2023-04-02 05:47:49,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093662838] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:47:49,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:47:49,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:47:49,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290963093] [2023-04-02 05:47:49,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:47:49,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:47:49,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:47:49,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:47:49,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:47:49,778 INFO L87 Difference]: Start difference. First operand 19761 states and 25914 transitions. Second operand has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:48:00,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:48:00,739 INFO L93 Difference]: Finished difference Result 46388 states and 61908 transitions. [2023-04-02 05:48:00,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 05:48:00,740 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2023-04-02 05:48:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:48:00,800 INFO L225 Difference]: With dead ends: 46388 [2023-04-02 05:48:00,800 INFO L226 Difference]: Without dead ends: 40169 [2023-04-02 05:48:00,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 05:48:00,814 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 4774 mSDsluCounter, 6419 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 7167 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:48:00,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 7167 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:48:00,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40169 states. [2023-04-02 05:48:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40169 to 21820. [2023-04-02 05:48:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21820 states, 21812 states have (on average 1.2954337062167613) internal successors, (28256), 21816 states have internal predecessors, (28256), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:48:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21820 states to 21820 states and 28259 transitions. [2023-04-02 05:48:05,525 INFO L78 Accepts]: Start accepts. Automaton has 21820 states and 28259 transitions. Word has length 167 [2023-04-02 05:48:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:48:05,526 INFO L495 AbstractCegarLoop]: Abstraction has 21820 states and 28259 transitions. [2023-04-02 05:48:05,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:48:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 21820 states and 28259 transitions. [2023-04-02 05:48:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-04-02 05:48:05,536 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:48:05,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:48:05,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 05:48:05,537 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:48:05,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:48:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1934921192, now seen corresponding path program 1 times [2023-04-02 05:48:05,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:48:05,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642326165] [2023-04-02 05:48:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:48:05,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:48:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:48:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:48:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:48:06,441 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 05:48:06,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:48:06,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642326165] [2023-04-02 05:48:06,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642326165] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:48:06,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:48:06,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:48:06,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5289390] [2023-04-02 05:48:06,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:48:06,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:48:06,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:48:06,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:48:06,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:48:06,443 INFO L87 Difference]: Start difference. First operand 21820 states and 28259 transitions. Second operand has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:48:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:48:37,233 INFO L93 Difference]: Finished difference Result 111793 states and 150276 transitions. [2023-04-02 05:48:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-04-02 05:48:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2023-04-02 05:48:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:48:37,463 INFO L225 Difference]: With dead ends: 111793 [2023-04-02 05:48:37,463 INFO L226 Difference]: Without dead ends: 104691 [2023-04-02 05:48:37,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=745, Invalid=2011, Unknown=0, NotChecked=0, Total=2756 [2023-04-02 05:48:37,505 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 5765 mSDsluCounter, 7136 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5765 SdHoareTripleChecker+Valid, 7978 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:48:37,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5765 Valid, 7978 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2900 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 05:48:37,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104691 states. [2023-04-02 05:48:44,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104691 to 27076. [2023-04-02 05:48:44,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27076 states, 27068 states have (on average 1.2665878528151322) internal successors, (34284), 27072 states have internal predecessors, (34284), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:48:45,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27076 states to 27076 states and 34287 transitions. [2023-04-02 05:48:45,016 INFO L78 Accepts]: Start accepts. Automaton has 27076 states and 34287 transitions. Word has length 167 [2023-04-02 05:48:45,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:48:45,017 INFO L495 AbstractCegarLoop]: Abstraction has 27076 states and 34287 transitions. [2023-04-02 05:48:45,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:48:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 27076 states and 34287 transitions. [2023-04-02 05:48:45,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-04-02 05:48:45,034 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:48:45,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:48:45,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 05:48:45,034 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:48:45,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:48:45,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1838321416, now seen corresponding path program 1 times [2023-04-02 05:48:45,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:48:45,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504637095] [2023-04-02 05:48:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:48:45,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:48:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:48:46,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:48:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:48:46,874 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 05:48:46,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:48:46,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504637095] [2023-04-02 05:48:46,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504637095] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:48:46,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:48:46,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-04-02 05:48:46,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960911169] [2023-04-02 05:48:46,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:48:46,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 05:48:46,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:48:46,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 05:48:46,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:48:46,875 INFO L87 Difference]: Start difference. First operand 27076 states and 34287 transitions. Second operand has 22 states, 22 states have (on average 7.454545454545454) internal successors, (164), 21 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:49:06,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:49:06,039 INFO L93 Difference]: Finished difference Result 53996 states and 69275 transitions. [2023-04-02 05:49:06,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 05:49:06,040 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.454545454545454) internal successors, (164), 21 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2023-04-02 05:49:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:49:06,109 INFO L225 Difference]: With dead ends: 53996 [2023-04-02 05:49:06,109 INFO L226 Difference]: Without dead ends: 45447 [2023-04-02 05:49:06,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2023-04-02 05:49:06,129 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 3052 mSDsluCounter, 10767 mSDsCounter, 0 mSdLazyCounter, 5434 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 11666 SdHoareTripleChecker+Invalid, 5446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:49:06,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3052 Valid, 11666 Invalid, 5446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 5434 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 05:49:06,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45447 states. [2023-04-02 05:49:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45447 to 27553. [2023-04-02 05:49:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27553 states, 27545 states have (on average 1.264984570702487) internal successors, (34844), 27549 states have internal predecessors, (34844), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:49:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27553 states to 27553 states and 34847 transitions. [2023-04-02 05:49:13,702 INFO L78 Accepts]: Start accepts. Automaton has 27553 states and 34847 transitions. Word has length 167 [2023-04-02 05:49:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:49:13,703 INFO L495 AbstractCegarLoop]: Abstraction has 27553 states and 34847 transitions. [2023-04-02 05:49:13,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.454545454545454) internal successors, (164), 21 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:49:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand 27553 states and 34847 transitions. [2023-04-02 05:49:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-04-02 05:49:13,719 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:49:13,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:49:13,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 05:49:13,720 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:49:13,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:49:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1269311186, now seen corresponding path program 1 times [2023-04-02 05:49:13,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:49:13,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307371893] [2023-04-02 05:49:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:49:13,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:49:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:49:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:49:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:49:14,102 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 05:49:14,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:49:14,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307371893] [2023-04-02 05:49:14,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307371893] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:49:14,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:49:14,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:49:14,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630133779] [2023-04-02 05:49:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:49:14,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:49:14,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:49:14,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:49:14,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:49:14,107 INFO L87 Difference]: Start difference. First operand 27553 states and 34847 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:49:24,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:49:24,495 INFO L93 Difference]: Finished difference Result 49297 states and 63730 transitions. [2023-04-02 05:49:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:49:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2023-04-02 05:49:24,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:49:24,537 INFO L225 Difference]: With dead ends: 49297 [2023-04-02 05:49:24,537 INFO L226 Difference]: Without dead ends: 37946 [2023-04-02 05:49:24,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:49:24,554 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 785 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:49:24,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 833 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:49:24,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37946 states. [2023-04-02 05:49:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37946 to 37944. [2023-04-02 05:49:34,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37944 states, 37936 states have (on average 1.253584985238296) internal successors, (47556), 37940 states have internal predecessors, (47556), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:49:34,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37944 states to 37944 states and 47559 transitions. [2023-04-02 05:49:34,346 INFO L78 Accepts]: Start accepts. Automaton has 37944 states and 47559 transitions. Word has length 167 [2023-04-02 05:49:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:49:34,347 INFO L495 AbstractCegarLoop]: Abstraction has 37944 states and 47559 transitions. [2023-04-02 05:49:34,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:49:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 37944 states and 47559 transitions. [2023-04-02 05:49:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-04-02 05:49:34,370 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:49:34,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:49:34,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 05:49:34,371 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-04-02 05:49:34,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:49:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash 747925122, now seen corresponding path program 1 times [2023-04-02 05:49:34,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:49:34,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883616157] [2023-04-02 05:49:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:49:34,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:49:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:49:35,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:49:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:49:35,954 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 05:49:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:49:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883616157] [2023-04-02 05:49:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883616157] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:49:35,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:49:35,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-04-02 05:49:35,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765584462] [2023-04-02 05:49:35,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:49:35,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-04-02 05:49:35,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:49:35,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-04-02 05:49:35,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2023-04-02 05:49:35,956 INFO L87 Difference]: Start difference. First operand 37944 states and 47559 transitions. Second operand has 24 states, 24 states have (on average 6.833333333333333) internal successors, (164), 23 states have internal predecessors, (164), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)