/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:45:21,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:45:21,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:45:21,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:45:21,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:45:21,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:45:21,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:45:21,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:45:21,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:45:21,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:45:21,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:45:21,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:45:21,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:45:21,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:45:21,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:45:21,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:45:21,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:45:21,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:45:21,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:45:21,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:45:21,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:45:21,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:45:21,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:45:21,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:45:21,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:45:21,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:45:21,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:45:21,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:45:21,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:45:21,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:45:21,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:45:21,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:45:21,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:45:21,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:45:21,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:45:21,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:45:21,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:45:21,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:45:21,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:45:21,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:45:21,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:45:21,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:45:21,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:45:21,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:45:21,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:45:21,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:45:21,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:45:21,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:45:21,962 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:45:21,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:45:21,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:45:21,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:45:21,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:45:21,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:45:21,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:45:21,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:45:21,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:45:21,965 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:45:21,965 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:45:22,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:45:22,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:45:22,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:45:22,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:45:22,149 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:45:22,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c [2022-01-10 23:45:22,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c751b0b/eb8c605d040a4a65b520ce34e0db91a2/FLAG45d3cce01 [2022-01-10 23:45:22,644 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:45:22,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c [2022-01-10 23:45:22,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c751b0b/eb8c605d040a4a65b520ce34e0db91a2/FLAG45d3cce01 [2022-01-10 23:45:22,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c751b0b/eb8c605d040a4a65b520ce34e0db91a2 [2022-01-10 23:45:22,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:45:22,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:45:22,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:45:22,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:45:22,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:45:22,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:45:22" (1/1) ... [2022-01-10 23:45:22,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b58f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:22, skipping insertion in model container [2022-01-10 23:45:22,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:45:22" (1/1) ... [2022-01-10 23:45:22,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:45:22,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:45:22,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c[1545,1558] [2022-01-10 23:45:23,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:23,191 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:45:23,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:45:23,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c[1545,1558] [2022-01-10 23:45:23,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:23,312 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:45:23,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c[1545,1558] [2022-01-10 23:45:23,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:23,395 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:45:23,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23 WrapperNode [2022-01-10 23:45:23,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:45:23,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:45:23,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:45:23,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:45:23,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,560 INFO L137 Inliner]: procedures = 95, calls = 338, calls flagged for inlining = 191, calls inlined = 282, statements flattened = 8634 [2022-01-10 23:45:23,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:45:23,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:45:23,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:45:23,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:45:23,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:45:23,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:45:23,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:45:23,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:45:23,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (1/1) ... [2022-01-10 23:45:23,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:45:23,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:45:23,738 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) [2022-01-10 23:45:23,744 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 [2022-01-10 23:45:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:45:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:45:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:45:23,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:45:23,911 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:45:23,912 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:45:27,150 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:45:27,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:45:27,169 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:45:27,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:45:27 BoogieIcfgContainer [2022-01-10 23:45:27,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:45:27,173 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:45:27,174 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:45:27,175 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:45:27,177 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:45:27" (1/1) ... [2022-01-10 23:45:27,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:45:27 BasicIcfg [2022-01-10 23:45:27,761 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:45:27,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:45:27,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:45:27,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:45:27,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:45:22" (1/4) ... [2022-01-10 23:45:27,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d654e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:45:27, skipping insertion in model container [2022-01-10 23:45:27,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:23" (2/4) ... [2022-01-10 23:45:27,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d654e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:45:27, skipping insertion in model container [2022-01-10 23:45:27,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:45:27" (3/4) ... [2022-01-10 23:45:27,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d654e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:45:27, skipping insertion in model container [2022-01-10 23:45:27,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:45:27" (4/4) ... [2022-01-10 23:45:27,767 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product11.cil.cTransformedIcfg [2022-01-10 23:45:27,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:45:27,773 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:45:27,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:45:27,830 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:45:27,830 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:45:27,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 2484 states, 2478 states have (on average 1.8672316384180792) internal successors, (4627), 2483 states have internal predecessors, (4627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:27,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 23:45:27,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:27,974 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:27,975 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:27,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash -56420824, now seen corresponding path program 1 times [2022-01-10 23:45:27,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:27,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313255661] [2022-01-10 23:45:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:27,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:28,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:28,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313255661] [2022-01-10 23:45:28,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313255661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:28,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:28,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:28,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675438601] [2022-01-10 23:45:28,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:28,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:28,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:28,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:28,409 INFO L87 Difference]: Start difference. First operand has 2484 states, 2478 states have (on average 1.8672316384180792) internal successors, (4627), 2483 states have internal predecessors, (4627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:28,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:28,594 INFO L93 Difference]: Finished difference Result 4953 states and 9231 transitions. [2022-01-10 23:45:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:28,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 23:45:28,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:28,636 INFO L225 Difference]: With dead ends: 4953 [2022-01-10 23:45:28,636 INFO L226 Difference]: Without dead ends: 2473 [2022-01-10 23:45:28,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:28,650 INFO L933 BasicCegarLoop]: 4606 mSDtfsCounter, 4601 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4601 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:28,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4601 Valid, 4617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2022-01-10 23:45:28,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2022-01-10 23:45:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2468 states have (on average 1.8650729335494327) internal successors, (4603), 2472 states have internal predecessors, (4603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:28,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 4603 transitions. [2022-01-10 23:45:28,771 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 4603 transitions. Word has length 51 [2022-01-10 23:45:28,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:28,771 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 4603 transitions. [2022-01-10 23:45:28,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:28,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 4603 transitions. [2022-01-10 23:45:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:45:28,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:28,776 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:28,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:45:28,777 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:28,779 INFO L85 PathProgramCache]: Analyzing trace with hash -51954454, now seen corresponding path program 1 times [2022-01-10 23:45:28,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:28,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132198419] [2022-01-10 23:45:28,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:28,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:28,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:28,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132198419] [2022-01-10 23:45:28,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132198419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:28,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:28,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:45:28,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796801775] [2022-01-10 23:45:28,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:28,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:45:28,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:28,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:45:28,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:45:28,961 INFO L87 Difference]: Start difference. First operand 2473 states and 4603 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:29,168 INFO L93 Difference]: Finished difference Result 4932 states and 9191 transitions. [2022-01-10 23:45:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:29,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:45:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:29,177 INFO L225 Difference]: With dead ends: 4932 [2022-01-10 23:45:29,178 INFO L226 Difference]: Without dead ends: 2473 [2022-01-10 23:45:29,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:45:29,182 INFO L933 BasicCegarLoop]: 4596 mSDtfsCounter, 18374 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18374 SdHoareTripleChecker+Valid, 4603 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:29,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18374 Valid, 4603 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2022-01-10 23:45:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2022-01-10 23:45:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2468 states have (on average 1.8646677471636952) internal successors, (4602), 2472 states have internal predecessors, (4602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 4602 transitions. [2022-01-10 23:45:29,247 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 4602 transitions. Word has length 58 [2022-01-10 23:45:29,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:29,248 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 4602 transitions. [2022-01-10 23:45:29,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:29,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 4602 transitions. [2022-01-10 23:45:29,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:45:29,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:29,258 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:29,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:45:29,259 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:29,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:29,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1648786025, now seen corresponding path program 1 times [2022-01-10 23:45:29,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:29,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542718647] [2022-01-10 23:45:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:29,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:29,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:29,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542718647] [2022-01-10 23:45:29,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542718647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:29,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:29,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:29,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241191767] [2022-01-10 23:45:29,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:29,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:29,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:29,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:29,324 INFO L87 Difference]: Start difference. First operand 2473 states and 4602 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:29,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:29,416 INFO L93 Difference]: Finished difference Result 4896 states and 9119 transitions. [2022-01-10 23:45:29,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:29,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:45:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:29,424 INFO L225 Difference]: With dead ends: 4896 [2022-01-10 23:45:29,425 INFO L226 Difference]: Without dead ends: 2473 [2022-01-10 23:45:29,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:29,429 INFO L933 BasicCegarLoop]: 4542 mSDtfsCounter, 4561 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4561 SdHoareTripleChecker+Valid, 4556 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:29,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4561 Valid, 4556 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:29,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2022-01-10 23:45:29,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2022-01-10 23:45:29,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2468 states have (on average 1.8545380875202593) internal successors, (4577), 2472 states have internal predecessors, (4577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 4577 transitions. [2022-01-10 23:45:29,487 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 4577 transitions. Word has length 58 [2022-01-10 23:45:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:29,487 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 4577 transitions. [2022-01-10 23:45:29,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 4577 transitions. [2022-01-10 23:45:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:45:29,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:29,489 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:29,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:45:29,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:29,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:29,490 INFO L85 PathProgramCache]: Analyzing trace with hash 667890762, now seen corresponding path program 1 times [2022-01-10 23:45:29,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:29,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727332009] [2022-01-10 23:45:29,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:29,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:29,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:29,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727332009] [2022-01-10 23:45:29,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727332009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:29,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:29,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:29,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734221805] [2022-01-10 23:45:29,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:29,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:29,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:29,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:29,627 INFO L87 Difference]: Start difference. First operand 2473 states and 4577 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:29,765 INFO L93 Difference]: Finished difference Result 5547 states and 10316 transitions. [2022-01-10 23:45:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:29,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 23:45:29,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:29,781 INFO L225 Difference]: With dead ends: 5547 [2022-01-10 23:45:29,782 INFO L226 Difference]: Without dead ends: 4287 [2022-01-10 23:45:29,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:29,795 INFO L933 BasicCegarLoop]: 4874 mSDtfsCounter, 4511 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4511 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:29,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4511 Valid, 8265 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4287 states. [2022-01-10 23:45:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4287 to 4287. [2022-01-10 23:45:30,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4282 states have (on average 1.8629145259224662) internal successors, (7977), 4286 states have internal predecessors, (7977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 7977 transitions. [2022-01-10 23:45:30,021 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 7977 transitions. Word has length 61 [2022-01-10 23:45:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:30,021 INFO L470 AbstractCegarLoop]: Abstraction has 4287 states and 7977 transitions. [2022-01-10 23:45:30,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 7977 transitions. [2022-01-10 23:45:30,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:45:30,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:30,024 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:30,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:45:30,024 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:30,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1406012166, now seen corresponding path program 1 times [2022-01-10 23:45:30,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:30,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138832804] [2022-01-10 23:45:30,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:30,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:30,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:30,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:30,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138832804] [2022-01-10 23:45:30,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138832804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:30,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:30,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:30,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171713347] [2022-01-10 23:45:30,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:30,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:30,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:30,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:30,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:30,137 INFO L87 Difference]: Start difference. First operand 4287 states and 7977 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:30,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:30,330 INFO L93 Difference]: Finished difference Result 10302 states and 19212 transitions. [2022-01-10 23:45:30,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:30,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-10 23:45:30,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:30,357 INFO L225 Difference]: With dead ends: 10302 [2022-01-10 23:45:30,357 INFO L226 Difference]: Without dead ends: 7806 [2022-01-10 23:45:30,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:30,363 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 4510 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:30,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4510 Valid, 7968 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:30,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7806 states. [2022-01-10 23:45:30,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7806 to 7804. [2022-01-10 23:45:30,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7804 states, 7799 states have (on average 1.867547121425824) internal successors, (14565), 7803 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:30,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7804 states to 7804 states and 14565 transitions. [2022-01-10 23:45:30,551 INFO L78 Accepts]: Start accepts. Automaton has 7804 states and 14565 transitions. Word has length 63 [2022-01-10 23:45:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:30,551 INFO L470 AbstractCegarLoop]: Abstraction has 7804 states and 14565 transitions. [2022-01-10 23:45:30,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 7804 states and 14565 transitions. [2022-01-10 23:45:30,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:45:30,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:30,553 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:30,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:45:30,554 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:30,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:30,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1044929672, now seen corresponding path program 1 times [2022-01-10 23:45:30,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:30,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332126845] [2022-01-10 23:45:30,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:30,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:30,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:30,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332126845] [2022-01-10 23:45:30,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332126845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:30,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:30,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:30,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348400299] [2022-01-10 23:45:30,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:30,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:30,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:30,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:30,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:30,604 INFO L87 Difference]: Start difference. First operand 7804 states and 14565 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:30,913 INFO L93 Difference]: Finished difference Result 19578 states and 36561 transitions. [2022-01-10 23:45:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:30,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-10 23:45:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:30,963 INFO L225 Difference]: With dead ends: 19578 [2022-01-10 23:45:30,964 INFO L226 Difference]: Without dead ends: 14619 [2022-01-10 23:45:30,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:30,971 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 4498 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4498 SdHoareTripleChecker+Valid, 7971 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:30,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4498 Valid, 7971 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:30,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14619 states. [2022-01-10 23:45:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14619 to 14615. [2022-01-10 23:45:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14615 states, 14610 states have (on average 1.8696098562628336) internal successors, (27315), 14614 states have internal predecessors, (27315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:31,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14615 states to 14615 states and 27315 transitions. [2022-01-10 23:45:31,281 INFO L78 Accepts]: Start accepts. Automaton has 14615 states and 27315 transitions. Word has length 64 [2022-01-10 23:45:31,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:31,283 INFO L470 AbstractCegarLoop]: Abstraction has 14615 states and 27315 transitions. [2022-01-10 23:45:31,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 14615 states and 27315 transitions. [2022-01-10 23:45:31,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 23:45:31,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:31,286 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:31,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:45:31,286 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1966932901, now seen corresponding path program 1 times [2022-01-10 23:45:31,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:31,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614367931] [2022-01-10 23:45:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:31,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:31,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:31,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614367931] [2022-01-10 23:45:31,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614367931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:31,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:31,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:31,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657322564] [2022-01-10 23:45:31,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:31,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:31,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:31,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:31,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:31,367 INFO L87 Difference]: Start difference. First operand 14615 states and 27315 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:31,720 INFO L93 Difference]: Finished difference Result 37662 states and 70370 transitions. [2022-01-10 23:45:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:31,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-10 23:45:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:31,787 INFO L225 Difference]: With dead ends: 37662 [2022-01-10 23:45:31,788 INFO L226 Difference]: Without dead ends: 27796 [2022-01-10 23:45:31,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:31,812 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 4497 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 7974 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:31,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4497 Valid, 7974 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27796 states. [2022-01-10 23:45:32,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27796 to 27790. [2022-01-10 23:45:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27790 states, 27785 states have (on average 1.8701097714594206) internal successors, (51961), 27789 states have internal predecessors, (51961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:32,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27790 states to 27790 states and 51961 transitions. [2022-01-10 23:45:32,401 INFO L78 Accepts]: Start accepts. Automaton has 27790 states and 51961 transitions. Word has length 65 [2022-01-10 23:45:32,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:32,402 INFO L470 AbstractCegarLoop]: Abstraction has 27790 states and 51961 transitions. [2022-01-10 23:45:32,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 27790 states and 51961 transitions. [2022-01-10 23:45:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 23:45:32,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:32,405 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:32,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:45:32,405 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:32,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:32,406 INFO L85 PathProgramCache]: Analyzing trace with hash 845392217, now seen corresponding path program 1 times [2022-01-10 23:45:32,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:32,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520597608] [2022-01-10 23:45:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:32,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:32,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:32,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:32,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520597608] [2022-01-10 23:45:32,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520597608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:32,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:32,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:32,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427310369] [2022-01-10 23:45:32,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:32,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:32,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:32,476 INFO L87 Difference]: Start difference. First operand 27790 states and 51961 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:33,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:33,373 INFO L93 Difference]: Finished difference Result 72894 states and 136206 transitions. [2022-01-10 23:45:33,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:33,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-10 23:45:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:33,514 INFO L225 Difference]: With dead ends: 72894 [2022-01-10 23:45:33,514 INFO L226 Difference]: Without dead ends: 53246 [2022-01-10 23:45:33,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:33,553 INFO L933 BasicCegarLoop]: 4575 mSDtfsCounter, 4496 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4496 SdHoareTripleChecker+Valid, 7978 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:33,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4496 Valid, 7978 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:33,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53246 states. [2022-01-10 23:45:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53246 to 53238. [2022-01-10 23:45:34,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.8696860969699247) internal successors, (99529), 53237 states have internal predecessors, (99529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 99529 transitions. [2022-01-10 23:45:35,064 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 99529 transitions. Word has length 66 [2022-01-10 23:45:35,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:35,064 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 99529 transitions. [2022-01-10 23:45:35,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 99529 transitions. [2022-01-10 23:45:35,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 23:45:35,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:35,078 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:35,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:45:35,078 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:35,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:35,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1259719586, now seen corresponding path program 1 times [2022-01-10 23:45:35,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:35,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18391758] [2022-01-10 23:45:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:35,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:35,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:35,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18391758] [2022-01-10 23:45:35,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18391758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:35,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:35,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:35,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529181009] [2022-01-10 23:45:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:35,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:35,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:35,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:35,130 INFO L87 Difference]: Start difference. First operand 53238 states and 99529 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:36,581 INFO L93 Difference]: Finished difference Result 108579 states and 202962 transitions. [2022-01-10 23:45:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:36,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-01-10 23:45:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:36,818 INFO L225 Difference]: With dead ends: 108579 [2022-01-10 23:45:36,819 INFO L226 Difference]: Without dead ends: 56288 [2022-01-10 23:45:36,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:36,857 INFO L933 BasicCegarLoop]: 5173 mSDtfsCounter, 3499 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 7461 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:36,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3499 Valid, 7461 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:45:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56288 states. [2022-01-10 23:45:37,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56288 to 53238. [2022-01-10 23:45:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.844231961377341) internal successors, (98174), 53237 states have internal predecessors, (98174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:37,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 98174 transitions. [2022-01-10 23:45:37,890 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 98174 transitions. Word has length 105 [2022-01-10 23:45:37,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:37,890 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 98174 transitions. [2022-01-10 23:45:37,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:37,890 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 98174 transitions. [2022-01-10 23:45:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 23:45:37,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:37,908 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:37,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:45:37,909 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 2038757881, now seen corresponding path program 1 times [2022-01-10 23:45:37,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:37,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961796855] [2022-01-10 23:45:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:37,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:38,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:38,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961796855] [2022-01-10 23:45:38,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961796855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:38,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:38,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:38,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7450620] [2022-01-10 23:45:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:38,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:38,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:38,099 INFO L87 Difference]: Start difference. First operand 53238 states and 98174 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:39,484 INFO L93 Difference]: Finished difference Result 110274 states and 203513 transitions. [2022-01-10 23:45:39,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:39,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 23:45:39,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:39,621 INFO L225 Difference]: With dead ends: 110274 [2022-01-10 23:45:39,621 INFO L226 Difference]: Without dead ends: 59141 [2022-01-10 23:45:39,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:39,676 INFO L933 BasicCegarLoop]: 5651 mSDtfsCounter, 3224 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:39,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3224 Valid, 8229 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:45:39,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59141 states. [2022-01-10 23:45:40,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59141 to 53238. [2022-01-10 23:45:40,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.8223470403696955) internal successors, (97009), 53237 states have internal predecessors, (97009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 97009 transitions. [2022-01-10 23:45:40,799 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 97009 transitions. Word has length 110 [2022-01-10 23:45:40,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:40,800 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 97009 transitions. [2022-01-10 23:45:40,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 97009 transitions. [2022-01-10 23:45:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 23:45:40,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:40,817 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:40,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:45:40,818 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:40,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:40,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1942368729, now seen corresponding path program 1 times [2022-01-10 23:45:40,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:40,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340195764] [2022-01-10 23:45:40,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:40,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:40,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:40,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340195764] [2022-01-10 23:45:40,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340195764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:40,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:40,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:40,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232876507] [2022-01-10 23:45:40,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:40,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:40,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:40,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:40,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:40,882 INFO L87 Difference]: Start difference. First operand 53238 states and 97009 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:42,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:42,546 INFO L93 Difference]: Finished difference Result 111642 states and 203997 transitions. [2022-01-10 23:45:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:42,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 23:45:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:42,673 INFO L225 Difference]: With dead ends: 111642 [2022-01-10 23:45:42,673 INFO L226 Difference]: Without dead ends: 62747 [2022-01-10 23:45:42,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:42,813 INFO L933 BasicCegarLoop]: 6021 mSDtfsCounter, 3071 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3071 SdHoareTripleChecker+Valid, 8889 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:42,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3071 Valid, 8889 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:45:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62747 states. [2022-01-10 23:45:43,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62747 to 53238. [2022-01-10 23:45:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.804970600943024) internal successors, (96084), 53237 states have internal predecessors, (96084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 96084 transitions. [2022-01-10 23:45:44,017 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 96084 transitions. Word has length 114 [2022-01-10 23:45:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:44,033 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 96084 transitions. [2022-01-10 23:45:44,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 96084 transitions. [2022-01-10 23:45:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 23:45:44,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:44,048 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:44,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:45:44,048 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:44,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:44,049 INFO L85 PathProgramCache]: Analyzing trace with hash 206754320, now seen corresponding path program 1 times [2022-01-10 23:45:44,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:44,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748008293] [2022-01-10 23:45:44,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:44,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:44,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:44,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748008293] [2022-01-10 23:45:44,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748008293] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:44,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:44,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:44,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572552581] [2022-01-10 23:45:44,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:44,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:44,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:44,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:44,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:44,107 INFO L87 Difference]: Start difference. First operand 53238 states and 96084 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:46,008 INFO L93 Difference]: Finished difference Result 136136 states and 247311 transitions. [2022-01-10 23:45:46,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:46,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-10 23:45:46,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:46,176 INFO L225 Difference]: With dead ends: 136136 [2022-01-10 23:45:46,177 INFO L226 Difference]: Without dead ends: 90118 [2022-01-10 23:45:46,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:46,222 INFO L933 BasicCegarLoop]: 6846 mSDtfsCounter, 2806 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:46,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2806 Valid, 10401 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:45:46,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90118 states. [2022-01-10 23:45:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90118 to 52923. [2022-01-10 23:45:47,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52923 states, 52918 states have (on average 1.7919044559507162) internal successors, (94824), 52922 states have internal predecessors, (94824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52923 states to 52923 states and 94824 transitions. [2022-01-10 23:45:47,703 INFO L78 Accepts]: Start accepts. Automaton has 52923 states and 94824 transitions. Word has length 117 [2022-01-10 23:45:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:47,703 INFO L470 AbstractCegarLoop]: Abstraction has 52923 states and 94824 transitions. [2022-01-10 23:45:47,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 52923 states and 94824 transitions. [2022-01-10 23:45:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 23:45:47,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:47,719 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:47,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:45:47,719 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1661049565, now seen corresponding path program 1 times [2022-01-10 23:45:47,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:47,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658469468] [2022-01-10 23:45:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:47,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:47,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:47,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658469468] [2022-01-10 23:45:47,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658469468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:47,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:47,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:47,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979330057] [2022-01-10 23:45:47,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:47,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:47,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:47,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:47,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:47,772 INFO L87 Difference]: Start difference. First operand 52923 states and 94824 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:49,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:49,637 INFO L93 Difference]: Finished difference Result 108956 states and 196958 transitions. [2022-01-10 23:45:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:49,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-10 23:45:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:49,758 INFO L225 Difference]: With dead ends: 108956 [2022-01-10 23:45:49,758 INFO L226 Difference]: Without dead ends: 66683 [2022-01-10 23:45:49,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:49,794 INFO L933 BasicCegarLoop]: 6431 mSDtfsCounter, 2558 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 9879 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:49,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 9879 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:45:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66683 states. [2022-01-10 23:45:51,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66683 to 52923. [2022-01-10 23:45:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52923 states, 52918 states have (on average 1.779810272497071) internal successors, (94184), 52922 states have internal predecessors, (94184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:51,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52923 states to 52923 states and 94184 transitions. [2022-01-10 23:45:51,247 INFO L78 Accepts]: Start accepts. Automaton has 52923 states and 94184 transitions. Word has length 118 [2022-01-10 23:45:51,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:51,247 INFO L470 AbstractCegarLoop]: Abstraction has 52923 states and 94184 transitions. [2022-01-10 23:45:51,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 52923 states and 94184 transitions. [2022-01-10 23:45:51,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 23:45:51,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:51,261 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:51,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:45:51,261 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:51,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:51,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1595791797, now seen corresponding path program 1 times [2022-01-10 23:45:51,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:51,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032361967] [2022-01-10 23:45:51,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:51,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:51,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:51,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032361967] [2022-01-10 23:45:51,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032361967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:51,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:51,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:45:51,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599675157] [2022-01-10 23:45:51,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:51,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:45:51,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:45:51,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:45:51,331 INFO L87 Difference]: Start difference. First operand 52923 states and 94184 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:53,647 INFO L93 Difference]: Finished difference Result 158669 states and 282432 transitions. [2022-01-10 23:45:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:45:53,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-01-10 23:45:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:53,876 INFO L225 Difference]: With dead ends: 158669 [2022-01-10 23:45:53,876 INFO L226 Difference]: Without dead ends: 105775 [2022-01-10 23:45:53,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:45:53,922 INFO L933 BasicCegarLoop]: 8700 mSDtfsCounter, 13046 mSDsluCounter, 4383 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13046 SdHoareTripleChecker+Valid, 13083 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:53,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13046 Valid, 13083 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:54,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105775 states. [2022-01-10 23:45:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105775 to 52902. [2022-01-10 23:45:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52902 states, 52897 states have (on average 1.7799875229219049) internal successors, (94156), 52901 states have internal predecessors, (94156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52902 states to 52902 states and 94156 transitions. [2022-01-10 23:45:55,720 INFO L78 Accepts]: Start accepts. Automaton has 52902 states and 94156 transitions. Word has length 119 [2022-01-10 23:45:55,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:55,721 INFO L470 AbstractCegarLoop]: Abstraction has 52902 states and 94156 transitions. [2022-01-10 23:45:55,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:55,721 INFO L276 IsEmpty]: Start isEmpty. Operand 52902 states and 94156 transitions. [2022-01-10 23:45:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 23:45:55,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:55,733 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:55,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:45:55,734 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:55,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:55,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1590956324, now seen corresponding path program 1 times [2022-01-10 23:45:55,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:55,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050347637] [2022-01-10 23:45:55,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:55,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:55,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:55,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050347637] [2022-01-10 23:45:55,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050347637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:55,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:55,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:45:55,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795891786] [2022-01-10 23:45:55,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:55,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:45:55,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:55,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:45:55,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:45:55,802 INFO L87 Difference]: Start difference. First operand 52902 states and 94156 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:57,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:57,229 INFO L93 Difference]: Finished difference Result 105775 states and 188280 transitions. [2022-01-10 23:45:57,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:45:57,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 23:45:57,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:57,317 INFO L225 Difference]: With dead ends: 105775 [2022-01-10 23:45:57,317 INFO L226 Difference]: Without dead ends: 52896 [2022-01-10 23:45:57,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:45:57,350 INFO L933 BasicCegarLoop]: 4357 mSDtfsCounter, 8693 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8693 SdHoareTripleChecker+Valid, 4383 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:57,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8693 Valid, 4383 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:57,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52896 states. [2022-01-10 23:45:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52896 to 52896. [2022-01-10 23:45:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52896 states, 52891 states have (on average 1.7800381917528503) internal successors, (94148), 52895 states have internal predecessors, (94148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:58,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52896 states to 52896 states and 94148 transitions. [2022-01-10 23:45:58,965 INFO L78 Accepts]: Start accepts. Automaton has 52896 states and 94148 transitions. Word has length 121 [2022-01-10 23:45:58,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:58,965 INFO L470 AbstractCegarLoop]: Abstraction has 52896 states and 94148 transitions. [2022-01-10 23:45:58,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:58,965 INFO L276 IsEmpty]: Start isEmpty. Operand 52896 states and 94148 transitions. [2022-01-10 23:45:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 23:45:58,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:58,978 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:45:58,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:45:58,978 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash 836786823, now seen corresponding path program 1 times [2022-01-10 23:45:58,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:58,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113607924] [2022-01-10 23:45:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:58,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:59,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:59,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113607924] [2022-01-10 23:45:59,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113607924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:59,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:59,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:45:59,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702166734] [2022-01-10 23:45:59,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:59,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:45:59,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:45:59,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:45:59,079 INFO L87 Difference]: Start difference. First operand 52896 states and 94148 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:00,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:00,490 INFO L93 Difference]: Finished difference Result 105763 states and 188261 transitions. [2022-01-10 23:46:00,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:46:00,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-10 23:46:00,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:00,589 INFO L225 Difference]: With dead ends: 105763 [2022-01-10 23:46:00,590 INFO L226 Difference]: Without dead ends: 52896 [2022-01-10 23:46:00,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:46:00,620 INFO L933 BasicCegarLoop]: 4348 mSDtfsCounter, 13017 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13017 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:00,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13017 Valid, 4384 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:00,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52896 states. [2022-01-10 23:46:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52896 to 52896. [2022-01-10 23:46:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52896 states, 52891 states have (on average 1.7800192849445085) internal successors, (94147), 52895 states have internal predecessors, (94147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52896 states to 52896 states and 94147 transitions. [2022-01-10 23:46:02,155 INFO L78 Accepts]: Start accepts. Automaton has 52896 states and 94147 transitions. Word has length 122 [2022-01-10 23:46:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:02,156 INFO L470 AbstractCegarLoop]: Abstraction has 52896 states and 94147 transitions. [2022-01-10 23:46:02,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 52896 states and 94147 transitions. [2022-01-10 23:46:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 23:46:02,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:02,168 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:46:02,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 23:46:02,168 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:02,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1011266818, now seen corresponding path program 1 times [2022-01-10 23:46:02,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:02,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447618220] [2022-01-10 23:46:02,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:02,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:02,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:02,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447618220] [2022-01-10 23:46:02,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447618220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:02,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:02,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:02,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802014029] [2022-01-10 23:46:02,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:02,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:46:02,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:02,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:46:02,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:46:02,217 INFO L87 Difference]: Start difference. First operand 52896 states and 94147 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:05,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:05,243 INFO L93 Difference]: Finished difference Result 152377 states and 270400 transitions. [2022-01-10 23:46:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:46:05,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-01-10 23:46:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:05,432 INFO L225 Difference]: With dead ends: 152377 [2022-01-10 23:46:05,433 INFO L226 Difference]: Without dead ends: 99518 [2022-01-10 23:46:05,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:46:05,474 INFO L933 BasicCegarLoop]: 4383 mSDtfsCounter, 11537 mSDsluCounter, 3644 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11537 SdHoareTripleChecker+Valid, 8027 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:05,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11537 Valid, 8027 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:46:05,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99518 states. [2022-01-10 23:46:07,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99518 to 52896. [2022-01-10 23:46:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52896 states, 52891 states have (on average 1.760129322569057) internal successors, (93095), 52895 states have internal predecessors, (93095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:07,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52896 states to 52896 states and 93095 transitions. [2022-01-10 23:46:07,600 INFO L78 Accepts]: Start accepts. Automaton has 52896 states and 93095 transitions. Word has length 123 [2022-01-10 23:46:07,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:07,600 INFO L470 AbstractCegarLoop]: Abstraction has 52896 states and 93095 transitions. [2022-01-10 23:46:07,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:07,600 INFO L276 IsEmpty]: Start isEmpty. Operand 52896 states and 93095 transitions. [2022-01-10 23:46:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 23:46:07,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:07,610 INFO L514 BasicCegarLoop]: 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] [2022-01-10 23:46:07,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 23:46:07,610 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:07,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:07,611 INFO L85 PathProgramCache]: Analyzing trace with hash -182255730, now seen corresponding path program 1 times [2022-01-10 23:46:07,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:07,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399017862] [2022-01-10 23:46:07,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:07,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:07,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:07,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:07,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399017862] [2022-01-10 23:46:07,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399017862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:07,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:07,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:46:07,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437639708] [2022-01-10 23:46:07,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:07,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:46:07,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:07,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:46:07,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:46:07,670 INFO L87 Difference]: Start difference. First operand 52896 states and 93095 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)