/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_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec13_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:29:55,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:29:55,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:29:55,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:29:55,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:29:55,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:29:55,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:29:55,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:29:55,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:29:55,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:29:55,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:29:55,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:29:55,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:29:55,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:29:55,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:29:55,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:29:55,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:29:55,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:29:55,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:29:55,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:29:55,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:29:55,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:29:55,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:29:55,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:29:55,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:29:55,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:29:55,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:29:55,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:29:55,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:29:55,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:29:55,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:29:55,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:29:55,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:29:55,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:29:55,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:29:55,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:29:55,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:29:55,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:29:55,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:29:55,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:29:55,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:29:55,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:29:55,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:29:55,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:29:55,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:29:55,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:29:55,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:29:55,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:29:55,818 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:29:55,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:29:55,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:29:55,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:29:55,820 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:29:55,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:29:55,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:29:55,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:29:55,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:29:55,820 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:29:55,821 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:29:56,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:29:56,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:29:56,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:29:56,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:29:56,034 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:29:56,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product22.cil.c [2022-01-11 05:29:56,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899c5d7e5/2b673f786b774eaabf1b228c60e9977f/FLAG4b143a3aa [2022-01-11 05:29:56,554 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:29:56,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product22.cil.c [2022-01-11 05:29:56,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899c5d7e5/2b673f786b774eaabf1b228c60e9977f/FLAG4b143a3aa [2022-01-11 05:29:56,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899c5d7e5/2b673f786b774eaabf1b228c60e9977f [2022-01-11 05:29:56,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:29:56,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:29:56,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:29:56,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:29:56,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:29:56,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:29:56" (1/1) ... [2022-01-11 05:29:56,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cb9f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:56, skipping insertion in model container [2022-01-11 05:29:56,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:29:56" (1/1) ... [2022-01-11 05:29:56,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:29:56,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:29:56,823 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_spec13_product22.cil.c[1811,1824] [2022-01-11 05:29:56,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:29:56,980 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:29:56,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:29:57,002 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_spec13_product22.cil.c[1811,1824] [2022-01-11 05:29:57,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:29:57,072 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:29:57,079 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_spec13_product22.cil.c[1811,1824] [2022-01-11 05:29:57,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:29:57,151 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:29:57,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57 WrapperNode [2022-01-11 05:29:57,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:29:57,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:29:57,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:29:57,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:29:57,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:57,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:57,685 INFO L137 Inliner]: procedures = 94, calls = 344, calls flagged for inlining = 196, calls inlined = 1755, statements flattened = 63923 [2022-01-11 05:29:57,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:29:57,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:29:57,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:29:57,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:29:57,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:57,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:57,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:57,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:58,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:58,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:58,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:58,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:29:58,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:29:58,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:29:58,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:29:58,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (1/1) ... [2022-01-11 05:29:58,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:29:58,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:29:58,856 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) [2022-01-11 05:29:58,861 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 [2022-01-11 05:29:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:29:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:29:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:29:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:29:59,105 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:29:59,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:30:15,709 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:30:15,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:30:15,793 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2022-01-11 05:30:15,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:15 BoogieIcfgContainer [2022-01-11 05:30:15,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:30:15,810 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:30:15,810 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:30:15,811 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:30:15,813 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:15" (1/1) ... [2022-01-11 05:30:18,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:30:18 BasicIcfg [2022-01-11 05:30:18,448 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:30:18,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:30:18,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:30:18,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:30:18,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:29:56" (1/4) ... [2022-01-11 05:30:18,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14437f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:30:18, skipping insertion in model container [2022-01-11 05:30:18,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:29:57" (2/4) ... [2022-01-11 05:30:18,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14437f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:30:18, skipping insertion in model container [2022-01-11 05:30:18,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:15" (3/4) ... [2022-01-11 05:30:18,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14437f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:30:18, skipping insertion in model container [2022-01-11 05:30:18,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:30:18" (4/4) ... [2022-01-11 05:30:18,455 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product22.cil.cTransformedIcfg [2022-01-11 05:30:18,459 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:30:18,459 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:30:18,530 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:30:18,535 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 [2022-01-11 05:30:18,535 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:30:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 17402 states, 17391 states have (on average 1.8845954804209073) internal successors, (32775), 17401 states have internal predecessors, (32775), 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) [2022-01-11 05:30:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:30:18,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:18,751 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] [2022-01-11 05:30:18,752 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:18,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:18,755 INFO L85 PathProgramCache]: Analyzing trace with hash 113257423, now seen corresponding path program 1 times [2022-01-11 05:30:18,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:18,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148006475] [2022-01-11 05:30:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:18,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:19,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148006475] [2022-01-11 05:30:19,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148006475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:19,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:19,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:19,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123013356] [2022-01-11 05:30:19,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:19,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:19,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:19,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:19,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:19,152 INFO L87 Difference]: Start difference. First operand has 17402 states, 17391 states have (on average 1.8845954804209073) internal successors, (32775), 17401 states have internal predecessors, (32775), 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 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-01-11 05:30:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:20,313 INFO L93 Difference]: Finished difference Result 41752 states and 78648 transitions. [2022-01-11 05:30:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:20,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2022-01-11 05:30:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:20,432 INFO L225 Difference]: With dead ends: 41752 [2022-01-11 05:30:20,432 INFO L226 Difference]: Without dead ends: 24349 [2022-01-11 05:30:20,462 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 [2022-01-11 05:30:20,464 INFO L933 BasicCegarLoop]: 45673 mSDtfsCounter, 32619 mSDsluCounter, 13081 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32619 SdHoareTripleChecker+Valid, 58754 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:20,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32619 Valid, 58754 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24349 states. [2022-01-11 05:30:20,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24349 to 17385. [2022-01-11 05:30:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17385 states, 17375 states have (on average 1.8774676258992806) internal successors, (32621), 17384 states have internal predecessors, (32621), 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) [2022-01-11 05:30:20,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17385 states to 17385 states and 32621 transitions. [2022-01-11 05:30:20,993 INFO L78 Accepts]: Start accepts. Automaton has 17385 states and 32621 transitions. Word has length 46 [2022-01-11 05:30:20,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:20,993 INFO L470 AbstractCegarLoop]: Abstraction has 17385 states and 32621 transitions. [2022-01-11 05:30:20,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-01-11 05:30:20,993 INFO L276 IsEmpty]: Start isEmpty. Operand 17385 states and 32621 transitions. [2022-01-11 05:30:20,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 05:30:20,995 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:20,995 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] [2022-01-11 05:30:20,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:30:20,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:20,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:20,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1803684060, now seen corresponding path program 1 times [2022-01-11 05:30:20,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:20,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519934486] [2022-01-11 05:30:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:20,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:21,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:21,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519934486] [2022-01-11 05:30:21,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519934486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:21,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:21,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:21,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577482217] [2022-01-11 05:30:21,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:21,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:21,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:21,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:21,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:21,081 INFO L87 Difference]: Start difference. First operand 17385 states and 32621 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-01-11 05:30:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:21,798 INFO L93 Difference]: Finished difference Result 41649 states and 78147 transitions. [2022-01-11 05:30:21,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:21,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-01-11 05:30:21,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:21,860 INFO L225 Difference]: With dead ends: 41649 [2022-01-11 05:30:21,861 INFO L226 Difference]: Without dead ends: 24313 [2022-01-11 05:30:21,885 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 [2022-01-11 05:30:21,886 INFO L933 BasicCegarLoop]: 45445 mSDtfsCounter, 32569 mSDsluCounter, 13022 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32569 SdHoareTripleChecker+Valid, 58467 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:21,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32569 Valid, 58467 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:30:21,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24313 states. [2022-01-11 05:30:22,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24313 to 17385. [2022-01-11 05:30:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17385 states, 17375 states have (on average 1.8768920863309353) internal successors, (32611), 17384 states have internal predecessors, (32611), 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) [2022-01-11 05:30:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17385 states to 17385 states and 32611 transitions. [2022-01-11 05:30:22,340 INFO L78 Accepts]: Start accepts. Automaton has 17385 states and 32611 transitions. Word has length 48 [2022-01-11 05:30:22,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:22,341 INFO L470 AbstractCegarLoop]: Abstraction has 17385 states and 32611 transitions. [2022-01-11 05:30:22,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-01-11 05:30:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 17385 states and 32611 transitions. [2022-01-11 05:30:22,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:30:22,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:22,352 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] [2022-01-11 05:30:22,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:30:22,352 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:22,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:22,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1383026289, now seen corresponding path program 1 times [2022-01-11 05:30:22,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:22,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862699375] [2022-01-11 05:30:22,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:22,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:22,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:22,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862699375] [2022-01-11 05:30:22,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862699375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:22,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:22,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:22,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095253961] [2022-01-11 05:30:22,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:22,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:22,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:22,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:22,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:22,422 INFO L87 Difference]: Start difference. First operand 17385 states and 32611 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-01-11 05:30:23,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:23,098 INFO L93 Difference]: Finished difference Result 41715 states and 78258 transitions. [2022-01-11 05:30:23,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:23,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2022-01-11 05:30:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:23,153 INFO L225 Difference]: With dead ends: 41715 [2022-01-11 05:30:23,154 INFO L226 Difference]: Without dead ends: 24394 [2022-01-11 05:30:23,180 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 [2022-01-11 05:30:23,183 INFO L933 BasicCegarLoop]: 45745 mSDtfsCounter, 32577 mSDsluCounter, 13150 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32577 SdHoareTripleChecker+Valid, 58895 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:23,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32577 Valid, 58895 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:23,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24394 states. [2022-01-11 05:30:23,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24394 to 17385. [2022-01-11 05:30:23,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17385 states, 17375 states have (on average 1.8768345323741007) internal successors, (32610), 17384 states have internal predecessors, (32610), 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) [2022-01-11 05:30:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17385 states to 17385 states and 32610 transitions. [2022-01-11 05:30:23,674 INFO L78 Accepts]: Start accepts. Automaton has 17385 states and 32610 transitions. Word has length 50 [2022-01-11 05:30:23,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:23,674 INFO L470 AbstractCegarLoop]: Abstraction has 17385 states and 32610 transitions. [2022-01-11 05:30:23,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-01-11 05:30:23,675 INFO L276 IsEmpty]: Start isEmpty. Operand 17385 states and 32610 transitions. [2022-01-11 05:30:23,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:30:23,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:23,677 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] [2022-01-11 05:30:23,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:30:23,678 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:23,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:23,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1726869313, now seen corresponding path program 1 times [2022-01-11 05:30:23,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:23,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562045160] [2022-01-11 05:30:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:23,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:23,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:23,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562045160] [2022-01-11 05:30:23,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562045160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:23,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:23,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:23,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583260732] [2022-01-11 05:30:23,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:23,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:23,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:23,731 INFO L87 Difference]: Start difference. First operand 17385 states and 32610 transitions. 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) [2022-01-11 05:30:24,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:24,315 INFO L93 Difference]: Finished difference Result 41614 states and 78065 transitions. [2022-01-11 05:30:24,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:24,316 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 [2022-01-11 05:30:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:24,371 INFO L225 Difference]: With dead ends: 41614 [2022-01-11 05:30:24,371 INFO L226 Difference]: Without dead ends: 24329 [2022-01-11 05:30:24,398 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 [2022-01-11 05:30:24,404 INFO L933 BasicCegarLoop]: 45574 mSDtfsCounter, 32447 mSDsluCounter, 13056 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32447 SdHoareTripleChecker+Valid, 58630 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:24,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32447 Valid, 58630 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24329 states. [2022-01-11 05:30:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24329 to 17385. [2022-01-11 05:30:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17385 states, 17375 states have (on average 1.8765467625899281) internal successors, (32605), 17384 states have internal predecessors, (32605), 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) [2022-01-11 05:30:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17385 states to 17385 states and 32605 transitions. [2022-01-11 05:30:24,893 INFO L78 Accepts]: Start accepts. Automaton has 17385 states and 32605 transitions. Word has length 51 [2022-01-11 05:30:24,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:24,894 INFO L470 AbstractCegarLoop]: Abstraction has 17385 states and 32605 transitions. [2022-01-11 05:30:24,894 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) [2022-01-11 05:30:24,894 INFO L276 IsEmpty]: Start isEmpty. Operand 17385 states and 32605 transitions. [2022-01-11 05:30:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:30:24,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:24,896 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] [2022-01-11 05:30:24,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:30:24,897 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:24,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:24,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1720940506, now seen corresponding path program 1 times [2022-01-11 05:30:24,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:24,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490821696] [2022-01-11 05:30:24,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:24,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:24,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:24,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:24,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490821696] [2022-01-11 05:30:24,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490821696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:24,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:24,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:24,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998945413] [2022-01-11 05:30:24,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:24,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:24,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:24,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:24,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:24,983 INFO L87 Difference]: Start difference. First operand 17385 states and 32605 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-01-11 05:30:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:25,800 INFO L93 Difference]: Finished difference Result 44474 states and 83494 transitions. [2022-01-11 05:30:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:25,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2022-01-11 05:30:25,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:25,874 INFO L225 Difference]: With dead ends: 44474 [2022-01-11 05:30:25,874 INFO L226 Difference]: Without dead ends: 30556 [2022-01-11 05:30:25,902 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 [2022-01-11 05:30:25,903 INFO L933 BasicCegarLoop]: 57353 mSDtfsCounter, 25669 mSDsluCounter, 31630 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25669 SdHoareTripleChecker+Valid, 88983 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:25,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25669 Valid, 88983 Invalid, 102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:25,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30556 states. [2022-01-11 05:30:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30556 to 17255. [2022-01-11 05:30:26,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17255 states, 17245 states have (on average 1.8756161206146709) internal successors, (32345), 17254 states have internal predecessors, (32345), 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) [2022-01-11 05:30:26,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17255 states to 17255 states and 32345 transitions. [2022-01-11 05:30:26,492 INFO L78 Accepts]: Start accepts. Automaton has 17255 states and 32345 transitions. Word has length 52 [2022-01-11 05:30:26,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:26,493 INFO L470 AbstractCegarLoop]: Abstraction has 17255 states and 32345 transitions. [2022-01-11 05:30:26,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-01-11 05:30:26,494 INFO L276 IsEmpty]: Start isEmpty. Operand 17255 states and 32345 transitions. [2022-01-11 05:30:26,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:30:26,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:26,497 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] [2022-01-11 05:30:26,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:30:26,497 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:26,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:26,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2041641015, now seen corresponding path program 1 times [2022-01-11 05:30:26,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:26,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972843592] [2022-01-11 05:30:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:26,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:26,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:26,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972843592] [2022-01-11 05:30:26,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972843592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:26,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:26,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:26,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411737238] [2022-01-11 05:30:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:26,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:26,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:26,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:26,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:26,578 INFO L87 Difference]: Start difference. First operand 17255 states and 32345 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-01-11 05:30:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:27,678 INFO L93 Difference]: Finished difference Result 57582 states and 108160 transitions. [2022-01-11 05:30:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:30:27,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2022-01-11 05:30:27,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:27,767 INFO L225 Difference]: With dead ends: 57582 [2022-01-11 05:30:27,767 INFO L226 Difference]: Without dead ends: 43807 [2022-01-11 05:30:27,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:27,787 INFO L933 BasicCegarLoop]: 82281 mSDtfsCounter, 50946 mSDsluCounter, 87925 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50946 SdHoareTripleChecker+Valid, 170206 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:27,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50946 Valid, 170206 Invalid, 115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2022-01-11 05:30:28,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 17255. [2022-01-11 05:30:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17255 states, 17245 states have (on average 1.8750362423890983) internal successors, (32335), 17254 states have internal predecessors, (32335), 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) [2022-01-11 05:30:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17255 states to 17255 states and 32335 transitions. [2022-01-11 05:30:28,340 INFO L78 Accepts]: Start accepts. Automaton has 17255 states and 32335 transitions. Word has length 54 [2022-01-11 05:30:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:28,341 INFO L470 AbstractCegarLoop]: Abstraction has 17255 states and 32335 transitions. [2022-01-11 05:30:28,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-01-11 05:30:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 17255 states and 32335 transitions. [2022-01-11 05:30:28,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:30:28,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:28,344 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] [2022-01-11 05:30:28,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:30:28,344 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:28,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1127085033, now seen corresponding path program 1 times [2022-01-11 05:30:28,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:28,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234258439] [2022-01-11 05:30:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:28,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:28,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:28,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234258439] [2022-01-11 05:30:28,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234258439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:28,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:28,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:28,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304391385] [2022-01-11 05:30:28,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:28,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:28,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:28,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:28,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:28,415 INFO L87 Difference]: Start difference. First operand 17255 states and 32335 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-01-11 05:30:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:29,543 INFO L93 Difference]: Finished difference Result 58537 states and 109709 transitions. [2022-01-11 05:30:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:30:29,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 55 [2022-01-11 05:30:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:29,610 INFO L225 Difference]: With dead ends: 58537 [2022-01-11 05:30:29,610 INFO L226 Difference]: Without dead ends: 41313 [2022-01-11 05:30:29,633 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 [2022-01-11 05:30:29,633 INFO L933 BasicCegarLoop]: 64436 mSDtfsCounter, 58106 mSDsluCounter, 96646 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58106 SdHoareTripleChecker+Valid, 161082 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:29,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58106 Valid, 161082 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:30:29,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41313 states. [2022-01-11 05:30:30,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41313 to 17263. [2022-01-11 05:30:30,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17263 states, 17253 states have (on average 1.8746304990436446) internal successors, (32343), 17262 states have internal predecessors, (32343), 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) [2022-01-11 05:30:30,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17263 states to 17263 states and 32343 transitions. [2022-01-11 05:30:30,201 INFO L78 Accepts]: Start accepts. Automaton has 17263 states and 32343 transitions. Word has length 55 [2022-01-11 05:30:30,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:30,201 INFO L470 AbstractCegarLoop]: Abstraction has 17263 states and 32343 transitions. [2022-01-11 05:30:30,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-01-11 05:30:30,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17263 states and 32343 transitions. [2022-01-11 05:30:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:30:30,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:30,204 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] [2022-01-11 05:30:30,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:30:30,204 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:30,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:30,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1473717544, now seen corresponding path program 1 times [2022-01-11 05:30:30,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:30,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132016875] [2022-01-11 05:30:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:30,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:30,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:30,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132016875] [2022-01-11 05:30:30,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132016875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:30,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:30,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:30,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222507211] [2022-01-11 05:30:30,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:30,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:30,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:30,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:30,263 INFO L87 Difference]: Start difference. First operand 17263 states and 32343 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-01-11 05:30:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:30,881 INFO L93 Difference]: Finished difference Result 41355 states and 77491 transitions. [2022-01-11 05:30:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:30:30,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-01-11 05:30:30,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:30,917 INFO L225 Difference]: With dead ends: 41355 [2022-01-11 05:30:30,917 INFO L226 Difference]: Without dead ends: 24105 [2022-01-11 05:30:30,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:30,941 INFO L933 BasicCegarLoop]: 45155 mSDtfsCounter, 25883 mSDsluCounter, 51444 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25883 SdHoareTripleChecker+Valid, 96599 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:30,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25883 Valid, 96599 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24105 states. [2022-01-11 05:30:31,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24105 to 17211. [2022-01-11 05:30:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17211 states, 17201 states have (on average 1.8744259054706123) internal successors, (32242), 17210 states have internal predecessors, (32242), 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) [2022-01-11 05:30:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17211 states to 17211 states and 32242 transitions. [2022-01-11 05:30:31,502 INFO L78 Accepts]: Start accepts. Automaton has 17211 states and 32242 transitions. Word has length 56 [2022-01-11 05:30:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:31,502 INFO L470 AbstractCegarLoop]: Abstraction has 17211 states and 32242 transitions. [2022-01-11 05:30:31,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-01-11 05:30:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 17211 states and 32242 transitions. [2022-01-11 05:30:31,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:30:31,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:31,504 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] [2022-01-11 05:30:31,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:30:31,505 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:31,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:31,505 INFO L85 PathProgramCache]: Analyzing trace with hash -340245398, now seen corresponding path program 1 times [2022-01-11 05:30:31,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:31,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507677861] [2022-01-11 05:30:31,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:31,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:31,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:31,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507677861] [2022-01-11 05:30:31,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507677861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:31,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:31,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:30:31,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960369442] [2022-01-11 05:30:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:31,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:30:31,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:30:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:30:31,605 INFO L87 Difference]: Start difference. First operand 17211 states and 32242 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-01-11 05:30:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:33,543 INFO L93 Difference]: Finished difference Result 78874 states and 147829 transitions. [2022-01-11 05:30:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:30:33,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2022-01-11 05:30:33,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:33,646 INFO L225 Difference]: With dead ends: 78874 [2022-01-11 05:30:33,647 INFO L226 Difference]: Without dead ends: 61683 [2022-01-11 05:30:33,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:30:33,684 INFO L933 BasicCegarLoop]: 102696 mSDtfsCounter, 147863 mSDsluCounter, 96371 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147863 SdHoareTripleChecker+Valid, 199067 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:33,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147863 Valid, 199067 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:30:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61683 states. [2022-01-11 05:30:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61683 to 17202. [2022-01-11 05:30:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17202 states, 17192 states have (on average 1.8741275011633318) internal successors, (32220), 17201 states have internal predecessors, (32220), 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) [2022-01-11 05:30:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17202 states to 17202 states and 32220 transitions. [2022-01-11 05:30:34,510 INFO L78 Accepts]: Start accepts. Automaton has 17202 states and 32220 transitions. Word has length 57 [2022-01-11 05:30:34,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:34,511 INFO L470 AbstractCegarLoop]: Abstraction has 17202 states and 32220 transitions. [2022-01-11 05:30:34,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-01-11 05:30:34,511 INFO L276 IsEmpty]: Start isEmpty. Operand 17202 states and 32220 transitions. [2022-01-11 05:30:34,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:30:34,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:34,513 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] [2022-01-11 05:30:34,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:30:34,513 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:34,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:34,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1412511526, now seen corresponding path program 1 times [2022-01-11 05:30:34,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:34,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341845064] [2022-01-11 05:30:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:34,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:34,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:34,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341845064] [2022-01-11 05:30:34,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341845064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:34,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:34,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:30:34,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648371335] [2022-01-11 05:30:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:34,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:30:34,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:30:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:30:34,558 INFO L87 Difference]: Start difference. First operand 17202 states and 32220 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2022-01-11 05:30:36,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:36,423 INFO L93 Difference]: Finished difference Result 54876 states and 102833 transitions. [2022-01-11 05:30:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:30:36,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 [2022-01-11 05:30:36,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:36,485 INFO L225 Difference]: With dead ends: 54876 [2022-01-11 05:30:36,485 INFO L226 Difference]: Without dead ends: 37700 [2022-01-11 05:30:36,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:30:36,501 INFO L933 BasicCegarLoop]: 70570 mSDtfsCounter, 83579 mSDsluCounter, 57643 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83579 SdHoareTripleChecker+Valid, 128213 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:36,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83579 Valid, 128213 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37700 states. [2022-01-11 05:30:37,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37700 to 17204. [2022-01-11 05:30:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17204 states, 17194 states have (on average 1.8739095033151099) internal successors, (32220), 17203 states have internal predecessors, (32220), 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) [2022-01-11 05:30:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17204 states to 17204 states and 32220 transitions. [2022-01-11 05:30:37,436 INFO L78 Accepts]: Start accepts. Automaton has 17204 states and 32220 transitions. Word has length 58 [2022-01-11 05:30:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:37,437 INFO L470 AbstractCegarLoop]: Abstraction has 17204 states and 32220 transitions. [2022-01-11 05:30:37,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2022-01-11 05:30:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 17204 states and 32220 transitions. [2022-01-11 05:30:37,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:30:37,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:37,440 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] [2022-01-11 05:30:37,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:30:37,440 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:37,440 INFO L85 PathProgramCache]: Analyzing trace with hash 124311809, now seen corresponding path program 1 times [2022-01-11 05:30:37,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:37,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685466661] [2022-01-11 05:30:37,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:37,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:37,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:37,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685466661] [2022-01-11 05:30:37,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685466661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:37,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:37,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:30:37,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099002851] [2022-01-11 05:30:37,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:37,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:30:37,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:37,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:30:37,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:30:37,495 INFO L87 Difference]: Start difference. First operand 17204 states and 32220 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-01-11 05:30:40,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:40,187 INFO L93 Difference]: Finished difference Result 75354 states and 141223 transitions. [2022-01-11 05:30:40,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:30:40,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2022-01-11 05:30:40,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:40,292 INFO L225 Difference]: With dead ends: 75354 [2022-01-11 05:30:40,292 INFO L226 Difference]: Without dead ends: 58176 [2022-01-11 05:30:40,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:30:40,315 INFO L933 BasicCegarLoop]: 108967 mSDtfsCounter, 102784 mSDsluCounter, 153636 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102784 SdHoareTripleChecker+Valid, 262603 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:40,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102784 Valid, 262603 Invalid, 121 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:40,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58176 states. [2022-01-11 05:30:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58176 to 17207. [2022-01-11 05:30:41,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17207 states, 17197 states have (on average 1.8736407512938302) internal successors, (32221), 17206 states have internal predecessors, (32221), 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) [2022-01-11 05:30:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17207 states to 17207 states and 32221 transitions. [2022-01-11 05:30:41,222 INFO L78 Accepts]: Start accepts. Automaton has 17207 states and 32221 transitions. Word has length 59 [2022-01-11 05:30:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:41,223 INFO L470 AbstractCegarLoop]: Abstraction has 17207 states and 32221 transitions. [2022-01-11 05:30:41,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-01-11 05:30:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 17207 states and 32221 transitions. [2022-01-11 05:30:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:30:41,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:41,225 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] [2022-01-11 05:30:41,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:30:41,226 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash -548953709, now seen corresponding path program 1 times [2022-01-11 05:30:41,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:41,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398525113] [2022-01-11 05:30:41,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:41,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:41,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:41,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398525113] [2022-01-11 05:30:41,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398525113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:41,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:41,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:30:41,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338963064] [2022-01-11 05:30:41,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:41,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:30:41,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:41,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:30:41,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:30:41,293 INFO L87 Difference]: Start difference. First operand 17207 states and 32221 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2022-01-11 05:30:45,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:45,484 INFO L93 Difference]: Finished difference Result 95833 states and 179613 transitions. [2022-01-11 05:30:45,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:30:45,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2022-01-11 05:30:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:45,616 INFO L225 Difference]: With dead ends: 95833 [2022-01-11 05:30:45,616 INFO L226 Difference]: Without dead ends: 78652 [2022-01-11 05:30:45,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:30:45,639 INFO L933 BasicCegarLoop]: 147355 mSDtfsCounter, 147894 mSDsluCounter, 211213 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147894 SdHoareTripleChecker+Valid, 358568 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:45,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147894 Valid, 358568 Invalid, 140 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78652 states. [2022-01-11 05:30:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78652 to 17211. [2022-01-11 05:30:46,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17211 states, 17201 states have (on average 1.8733213185279927) internal successors, (32223), 17210 states have internal predecessors, (32223), 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) [2022-01-11 05:30:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17211 states to 17211 states and 32223 transitions. [2022-01-11 05:30:46,708 INFO L78 Accepts]: Start accepts. Automaton has 17211 states and 32223 transitions. Word has length 60 [2022-01-11 05:30:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:46,709 INFO L470 AbstractCegarLoop]: Abstraction has 17211 states and 32223 transitions. [2022-01-11 05:30:46,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2022-01-11 05:30:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17211 states and 32223 transitions. [2022-01-11 05:30:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:30:46,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:46,711 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] [2022-01-11 05:30:46,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:30:46,712 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:46,712 INFO L85 PathProgramCache]: Analyzing trace with hash 660871758, now seen corresponding path program 1 times [2022-01-11 05:30:46,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:46,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781111969] [2022-01-11 05:30:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:46,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:46,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:46,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781111969] [2022-01-11 05:30:46,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781111969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:46,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:46,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:46,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113011459] [2022-01-11 05:30:46,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:46,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:46,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:46,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:46,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:46,755 INFO L87 Difference]: Start difference. First operand 17211 states and 32223 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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) [2022-01-11 05:30:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:48,641 INFO L93 Difference]: Finished difference Result 54859 states and 102789 transitions. [2022-01-11 05:30:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:30:48,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 [2022-01-11 05:30:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:48,698 INFO L225 Difference]: With dead ends: 54859 [2022-01-11 05:30:48,699 INFO L226 Difference]: Without dead ends: 37707 [2022-01-11 05:30:48,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:30:48,722 INFO L933 BasicCegarLoop]: 51385 mSDtfsCounter, 83548 mSDsluCounter, 57678 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83548 SdHoareTripleChecker+Valid, 109063 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:48,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83548 Valid, 109063 Invalid, 49 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:48,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37707 states. [2022-01-11 05:30:49,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37707 to 17214. [2022-01-11 05:30:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17214 states, 17204 states have (on average 1.873169030458033) internal successors, (32226), 17213 states have internal predecessors, (32226), 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) [2022-01-11 05:30:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17214 states to 17214 states and 32226 transitions. [2022-01-11 05:30:49,610 INFO L78 Accepts]: Start accepts. Automaton has 17214 states and 32226 transitions. Word has length 61 [2022-01-11 05:30:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:49,611 INFO L470 AbstractCegarLoop]: Abstraction has 17214 states and 32226 transitions. [2022-01-11 05:30:49,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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) [2022-01-11 05:30:49,611 INFO L276 IsEmpty]: Start isEmpty. Operand 17214 states and 32226 transitions. [2022-01-11 05:30:49,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 05:30:49,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:49,613 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] [2022-01-11 05:30:49,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:30:49,614 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:49,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:49,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1994865704, now seen corresponding path program 1 times [2022-01-11 05:30:49,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:49,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338149143] [2022-01-11 05:30:49,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:49,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:49,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:49,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338149143] [2022-01-11 05:30:49,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338149143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:49,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:49,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:30:49,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181502195] [2022-01-11 05:30:49,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:49,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:30:49,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:49,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:30:49,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:30:49,664 INFO L87 Difference]: Start difference. First operand 17214 states and 32226 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2022-01-11 05:30:50,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:50,753 INFO L93 Difference]: Finished difference Result 41252 states and 77266 transitions. [2022-01-11 05:30:50,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:30:50,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2022-01-11 05:30:50,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:50,789 INFO L225 Difference]: With dead ends: 41252 [2022-01-11 05:30:50,789 INFO L226 Difference]: Without dead ends: 24073 [2022-01-11 05:30:50,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:30:50,802 INFO L933 BasicCegarLoop]: 45070 mSDtfsCounter, 45068 mSDsluCounter, 38774 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45068 SdHoareTripleChecker+Valid, 83844 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:50,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45068 Valid, 83844 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:50,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24073 states. [2022-01-11 05:30:51,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24073 to 17191. [2022-01-11 05:30:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17191 states, 17181 states have (on average 1.8734066701588965) internal successors, (32187), 17190 states have internal predecessors, (32187), 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) [2022-01-11 05:30:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17191 states to 17191 states and 32187 transitions. [2022-01-11 05:30:51,582 INFO L78 Accepts]: Start accepts. Automaton has 17191 states and 32187 transitions. Word has length 62 [2022-01-11 05:30:51,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:51,582 INFO L470 AbstractCegarLoop]: Abstraction has 17191 states and 32187 transitions. [2022-01-11 05:30:51,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2022-01-11 05:30:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 17191 states and 32187 transitions. [2022-01-11 05:30:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:30:51,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:51,585 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] [2022-01-11 05:30:51,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:30:51,585 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:51,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1512545522, now seen corresponding path program 1 times [2022-01-11 05:30:51,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:51,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133792101] [2022-01-11 05:30:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:51,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:51,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:51,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133792101] [2022-01-11 05:30:51,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133792101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:51,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:51,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:51,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538601563] [2022-01-11 05:30:51,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:51,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:51,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:51,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:51,716 INFO L87 Difference]: Start difference. First operand 17191 states and 32187 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 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)