/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_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:58:07,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:58:07,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:58:07,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:58:07,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:58:07,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:58:07,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:58:07,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:58:07,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:58:07,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:58:07,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:58:07,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:58:07,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:58:07,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:58:07,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:58:07,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:58:07,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:58:07,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:58:07,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:58:07,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:58:07,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:58:07,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:58:07,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:58:07,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:58:07,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:58:07,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:58:07,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:58:07,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:58:07,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:58:07,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:58:07,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:58:07,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:58:07,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:58:07,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:58:07,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:58:07,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:58:07,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:58:07,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:58:07,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:58:07,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:58:07,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:58:07,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:58:07,785 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:58:07,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:58:07,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:58:07,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:58:07,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:58:07,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:58:07,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:58:07,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:58:07,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:58:07,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:58:07,788 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:58:07,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:58:07,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:58:07,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:58:07,789 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:58:07,789 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:58:07,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:58:08,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:58:08,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:58:08,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:58:08,012 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:58:08,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product28.cil.c [2022-01-10 17:58:08,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e73a5f18/863c9742a9aa4da082cebffd284c622a/FLAG77800b0c2 [2022-01-10 17:58:08,511 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:58:08,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product28.cil.c [2022-01-10 17:58:08,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e73a5f18/863c9742a9aa4da082cebffd284c622a/FLAG77800b0c2 [2022-01-10 17:58:08,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e73a5f18/863c9742a9aa4da082cebffd284c622a [2022-01-10 17:58:08,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:58:08,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:58:08,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:58:08,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:58:08,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:58:08,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:08" (1/1) ... [2022-01-10 17:58:08,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168409b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:08, skipping insertion in model container [2022-01-10 17:58:08,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:08" (1/1) ... [2022-01-10 17:58:08,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:58:08,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:58:08,983 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_spec3_product28.cil.c[73221,73234] [2022-01-10 17:58:08,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:58:08,995 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:58:09,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:58:09,096 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_spec3_product28.cil.c[73221,73234] [2022-01-10 17:58:09,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:58:09,107 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:58:09,195 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_spec3_product28.cil.c[73221,73234] [2022-01-10 17:58:09,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:58:09,216 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:58:09,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09 WrapperNode [2022-01-10 17:58:09,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:58:09,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:58:09,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:58:09,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:58:09,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:09,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:09,616 INFO L137 Inliner]: procedures = 97, calls = 354, calls flagged for inlining = 206, calls inlined = 1508, statements flattened = 45877 [2022-01-10 17:58:09,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:58:09,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:58:09,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:58:09,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:58:09,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:09,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:09,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:09,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:10,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:10,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:10,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:10,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:58:10,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:58:10,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:58:10,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:58:10,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (1/1) ... [2022-01-10 17:58:10,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:58:10,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:58:10,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 17:58:10,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 17:58:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:58:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:58:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:58:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:58:10,670 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:58:10,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:58:23,650 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:58:23,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:58:23,715 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:58:23,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:23 BoogieIcfgContainer [2022-01-10 17:58:23,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:58:23,728 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:58:23,728 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:58:23,729 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:58:23,730 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:23" (1/1) ... [2022-01-10 17:58:25,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:58:25 BasicIcfg [2022-01-10 17:58:25,584 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:58:25,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:58:25,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:58:25,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:58:25,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:58:08" (1/4) ... [2022-01-10 17:58:25,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e35a202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:25, skipping insertion in model container [2022-01-10 17:58:25,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:09" (2/4) ... [2022-01-10 17:58:25,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e35a202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:25, skipping insertion in model container [2022-01-10 17:58:25,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:23" (3/4) ... [2022-01-10 17:58:25,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e35a202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:58:25, skipping insertion in model container [2022-01-10 17:58:25,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:58:25" (4/4) ... [2022-01-10 17:58:25,590 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product28.cil.cTransformedIcfg [2022-01-10 17:58:25,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:58:25,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 17:58:25,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:58:25,659 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:58:25,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 17:58:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 12788 states, 12777 states have (on average 1.865461375909838) internal successors, (23835), 12787 states have internal predecessors, (23835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 17:58:25,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:25,805 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] [2022-01-10 17:58:25,805 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)] === [2022-01-10 17:58:25,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:25,809 INFO L85 PathProgramCache]: Analyzing trace with hash -538108671, now seen corresponding path program 1 times [2022-01-10 17:58:25,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:25,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868609984] [2022-01-10 17:58:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:25,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:26,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:26,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868609984] [2022-01-10 17:58:26,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868609984] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:26,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:26,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:58:26,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009293561] [2022-01-10 17:58:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:26,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:26,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:26,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:26,289 INFO L87 Difference]: Start difference. First operand has 12788 states, 12777 states have (on average 1.865461375909838) internal successors, (23835), 12787 states have internal predecessors, (23835), 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 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:27,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:27,209 INFO L93 Difference]: Finished difference Result 35258 states and 65760 transitions. [2022-01-10 17:58:27,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2022-01-10 17:58:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:27,327 INFO L225 Difference]: With dead ends: 35258 [2022-01-10 17:58:27,328 INFO L226 Difference]: Without dead ends: 25027 [2022-01-10 17:58:27,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:27,354 INFO L933 BasicCegarLoop]: 28541 mSDtfsCounter, 22896 mSDsluCounter, 23717 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22896 SdHoareTripleChecker+Valid, 52258 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:27,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22896 Valid, 52258 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 17:58:27,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25027 states. [2022-01-10 17:58:27,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25027 to 24916. [2022-01-10 17:58:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24906 states have (on average 1.866538183570224) internal successors, (46488), 24915 states have internal predecessors, (46488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 46488 transitions. [2022-01-10 17:58:28,084 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 46488 transitions. Word has length 34 [2022-01-10 17:58:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:28,085 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 46488 transitions. [2022-01-10 17:58:28,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 46488 transitions. [2022-01-10 17:58:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 17:58:28,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:28,087 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] [2022-01-10 17:58:28,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:58:28,087 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)] === [2022-01-10 17:58:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1325418682, now seen corresponding path program 1 times [2022-01-10 17:58:28,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:28,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103086597] [2022-01-10 17:58:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:28,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:28,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:28,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103086597] [2022-01-10 17:58:28,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103086597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:28,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:28,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:58:28,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083072762] [2022-01-10 17:58:28,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:28,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:58:28,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:28,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:58:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:58:28,202 INFO L87 Difference]: Start difference. First operand 24916 states and 46488 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:30,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:30,092 INFO L93 Difference]: Finished difference Result 99483 states and 185618 transitions. [2022-01-10 17:58:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:58:30,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2022-01-10 17:58:30,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:30,321 INFO L225 Difference]: With dead ends: 99483 [2022-01-10 17:58:30,321 INFO L226 Difference]: Without dead ends: 74594 [2022-01-10 17:58:30,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:58:30,381 INFO L933 BasicCegarLoop]: 47427 mSDtfsCounter, 70993 mSDsluCounter, 71170 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70993 SdHoareTripleChecker+Valid, 118597 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:30,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70993 Valid, 118597 Invalid, 77 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:58:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74594 states. [2022-01-10 17:58:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74594 to 24926. [2022-01-10 17:58:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24926 states, 24916 states have (on average 1.8661903997431368) internal successors, (46498), 24925 states have internal predecessors, (46498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:31,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24926 states to 24926 states and 46498 transitions. [2022-01-10 17:58:31,455 INFO L78 Accepts]: Start accepts. Automaton has 24926 states and 46498 transitions. Word has length 34 [2022-01-10 17:58:31,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:31,464 INFO L470 AbstractCegarLoop]: Abstraction has 24926 states and 46498 transitions. [2022-01-10 17:58:31,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 24926 states and 46498 transitions. [2022-01-10 17:58:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 17:58:31,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:31,473 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] [2022-01-10 17:58:31,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:58:31,473 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)] === [2022-01-10 17:58:31,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:31,474 INFO L85 PathProgramCache]: Analyzing trace with hash -488663073, now seen corresponding path program 1 times [2022-01-10 17:58:31,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:31,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073545276] [2022-01-10 17:58:31,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:31,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:31,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:31,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073545276] [2022-01-10 17:58:31,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073545276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:31,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:31,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:58:31,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687433253] [2022-01-10 17:58:31,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:31,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:31,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:31,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:31,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:31,541 INFO L87 Difference]: Start difference. First operand 24926 states and 46498 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:32,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:32,183 INFO L93 Difference]: Finished difference Result 49769 states and 92846 transitions. [2022-01-10 17:58:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:32,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2022-01-10 17:58:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:32,241 INFO L225 Difference]: With dead ends: 49769 [2022-01-10 17:58:32,242 INFO L226 Difference]: Without dead ends: 24858 [2022-01-10 17:58:32,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:32,277 INFO L933 BasicCegarLoop]: 23675 mSDtfsCounter, 23667 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23667 SdHoareTripleChecker+Valid, 23683 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:32,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23667 Valid, 23683 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:32,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-10 17:58:32,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-10 17:58:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.865824211204121) internal successors, (46362), 24857 states have internal predecessors, (46362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46362 transitions. [2022-01-10 17:58:32,955 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46362 transitions. Word has length 35 [2022-01-10 17:58:32,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:32,955 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46362 transitions. [2022-01-10 17:58:32,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:32,955 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46362 transitions. [2022-01-10 17:58:32,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 17:58:32,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:32,958 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] [2022-01-10 17:58:32,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:58:32,958 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)] === [2022-01-10 17:58:32,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2047755655, now seen corresponding path program 1 times [2022-01-10 17:58:32,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:32,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944070358] [2022-01-10 17:58:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:32,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:33,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:33,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944070358] [2022-01-10 17:58:33,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944070358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:33,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:33,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 17:58:33,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997096341] [2022-01-10 17:58:33,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:33,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 17:58:33,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:33,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 17:58:33,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:58:33,087 INFO L87 Difference]: Start difference. First operand 24858 states and 46362 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:33,946 INFO L93 Difference]: Finished difference Result 49694 states and 92695 transitions. [2022-01-10 17:58:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 17:58:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 37 [2022-01-10 17:58:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:34,002 INFO L225 Difference]: With dead ends: 49694 [2022-01-10 17:58:34,002 INFO L226 Difference]: Without dead ends: 24858 [2022-01-10 17:58:34,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 17:58:34,025 INFO L933 BasicCegarLoop]: 23661 mSDtfsCounter, 47323 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47323 SdHoareTripleChecker+Valid, 23709 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:34,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47323 Valid, 23709 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-10 17:58:34,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-10 17:58:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8657437218287185) internal successors, (46360), 24857 states have internal predecessors, (46360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46360 transitions. [2022-01-10 17:58:34,767 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46360 transitions. Word has length 37 [2022-01-10 17:58:34,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:34,768 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46360 transitions. [2022-01-10 17:58:34,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46360 transitions. [2022-01-10 17:58:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 17:58:34,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:34,769 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] [2022-01-10 17:58:34,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:58:34,769 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)] === [2022-01-10 17:58:34,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:34,770 INFO L85 PathProgramCache]: Analyzing trace with hash 851786399, now seen corresponding path program 1 times [2022-01-10 17:58:34,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:34,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144206884] [2022-01-10 17:58:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:34,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:34,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:34,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:34,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144206884] [2022-01-10 17:58:34,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144206884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:34,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:34,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:58:34,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135520514] [2022-01-10 17:58:34,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:34,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:58:34,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:34,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:58:34,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:58:34,836 INFO L87 Difference]: Start difference. First operand 24858 states and 46360 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:35,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:35,643 INFO L93 Difference]: Finished difference Result 49688 states and 92681 transitions. [2022-01-10 17:58:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 17:58:35,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2022-01-10 17:58:35,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:35,706 INFO L225 Difference]: With dead ends: 49688 [2022-01-10 17:58:35,706 INFO L226 Difference]: Without dead ends: 24858 [2022-01-10 17:58:35,736 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 [2022-01-10 17:58:35,737 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70956 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70956 SdHoareTripleChecker+Valid, 23676 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:35,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70956 Valid, 23676 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:35,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-10 17:58:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-10 17:58:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8656632324533162) internal successors, (46358), 24857 states have internal predecessors, (46358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:36,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46358 transitions. [2022-01-10 17:58:36,567 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46358 transitions. Word has length 38 [2022-01-10 17:58:36,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:36,569 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46358 transitions. [2022-01-10 17:58:36,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46358 transitions. [2022-01-10 17:58:36,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 17:58:36,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:36,570 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] [2022-01-10 17:58:36,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:58:36,571 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)] === [2022-01-10 17:58:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1993223602, now seen corresponding path program 1 times [2022-01-10 17:58:36,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:36,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888875943] [2022-01-10 17:58:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:36,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:36,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:36,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888875943] [2022-01-10 17:58:36,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888875943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:36,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:36,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 17:58:36,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820384741] [2022-01-10 17:58:36,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:36,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 17:58:36,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 17:58:36,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:58:36,630 INFO L87 Difference]: Start difference. First operand 24858 states and 46358 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:37,474 INFO L93 Difference]: Finished difference Result 49688 states and 92678 transitions. [2022-01-10 17:58:37,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 17:58:37,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2022-01-10 17:58:37,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:37,527 INFO L225 Difference]: With dead ends: 49688 [2022-01-10 17:58:37,527 INFO L226 Difference]: Without dead ends: 24858 [2022-01-10 17:58:37,551 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 [2022-01-10 17:58:37,552 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70947 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70947 SdHoareTripleChecker+Valid, 23686 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:37,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70947 Valid, 23686 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-10 17:58:38,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-10 17:58:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8655827430779137) internal successors, (46356), 24857 states have internal predecessors, (46356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46356 transitions. [2022-01-10 17:58:38,307 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46356 transitions. Word has length 39 [2022-01-10 17:58:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:38,307 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46356 transitions. [2022-01-10 17:58:38,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46356 transitions. [2022-01-10 17:58:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 17:58:38,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:38,308 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] [2022-01-10 17:58:38,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:58:38,308 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)] === [2022-01-10 17:58:38,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:38,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1998290898, now seen corresponding path program 1 times [2022-01-10 17:58:38,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:38,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248831351] [2022-01-10 17:58:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:38,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:38,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:38,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248831351] [2022-01-10 17:58:38,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248831351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:38,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:38,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 17:58:38,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116189369] [2022-01-10 17:58:38,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:38,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 17:58:38,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:38,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 17:58:38,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:58:38,399 INFO L87 Difference]: Start difference. First operand 24858 states and 46356 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:39,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:39,118 INFO L93 Difference]: Finished difference Result 49688 states and 92675 transitions. [2022-01-10 17:58:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 17:58:39,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2022-01-10 17:58:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:39,164 INFO L225 Difference]: With dead ends: 49688 [2022-01-10 17:58:39,164 INFO L226 Difference]: Without dead ends: 24858 [2022-01-10 17:58:39,187 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 [2022-01-10 17:58:39,188 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70940 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70940 SdHoareTripleChecker+Valid, 23686 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:39,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70940 Valid, 23686 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:39,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-10 17:58:40,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-10 17:58:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8655022537025112) internal successors, (46354), 24857 states have internal predecessors, (46354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46354 transitions. [2022-01-10 17:58:40,082 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46354 transitions. Word has length 40 [2022-01-10 17:58:40,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:40,083 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46354 transitions. [2022-01-10 17:58:40,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46354 transitions. [2022-01-10 17:58:40,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 17:58:40,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:40,084 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] [2022-01-10 17:58:40,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:58:40,084 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)] === [2022-01-10 17:58:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1135629445, now seen corresponding path program 1 times [2022-01-10 17:58:40,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:40,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052540083] [2022-01-10 17:58:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:40,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:40,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:40,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052540083] [2022-01-10 17:58:40,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052540083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:40,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:40,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 17:58:40,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402174539] [2022-01-10 17:58:40,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:40,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 17:58:40,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 17:58:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:58:40,144 INFO L87 Difference]: Start difference. First operand 24858 states and 46354 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:40,935 INFO L93 Difference]: Finished difference Result 49688 states and 92672 transitions. [2022-01-10 17:58:40,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 17:58:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 41 [2022-01-10 17:58:40,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:40,987 INFO L225 Difference]: With dead ends: 49688 [2022-01-10 17:58:40,987 INFO L226 Difference]: Without dead ends: 24858 [2022-01-10 17:58:41,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 17:58:41,010 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70933 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70933 SdHoareTripleChecker+Valid, 23696 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:41,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70933 Valid, 23696 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:41,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-10 17:58:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-10 17:58:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8654217643271087) internal successors, (46352), 24857 states have internal predecessors, (46352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:41,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46352 transitions. [2022-01-10 17:58:41,746 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46352 transitions. Word has length 41 [2022-01-10 17:58:41,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:41,746 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46352 transitions. [2022-01-10 17:58:41,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:41,746 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46352 transitions. [2022-01-10 17:58:41,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 17:58:41,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:41,747 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] [2022-01-10 17:58:41,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:58:41,747 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)] === [2022-01-10 17:58:41,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:41,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1265643676, now seen corresponding path program 1 times [2022-01-10 17:58:41,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:41,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16779359] [2022-01-10 17:58:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:41,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:41,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:41,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16779359] [2022-01-10 17:58:41,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16779359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:41,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:41,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 17:58:41,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037463437] [2022-01-10 17:58:41,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:41,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 17:58:41,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:41,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 17:58:41,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:58:41,832 INFO L87 Difference]: Start difference. First operand 24858 states and 46352 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:42,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:42,772 INFO L93 Difference]: Finished difference Result 49688 states and 92669 transitions. [2022-01-10 17:58:42,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 17:58:42,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 42 [2022-01-10 17:58:42,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:42,822 INFO L225 Difference]: With dead ends: 49688 [2022-01-10 17:58:42,822 INFO L226 Difference]: Without dead ends: 24858 [2022-01-10 17:58:42,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 17:58:42,850 INFO L933 BasicCegarLoop]: 23653 mSDtfsCounter, 70904 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70904 SdHoareTripleChecker+Valid, 23719 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:42,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70904 Valid, 23719 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:42,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-10 17:58:43,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-10 17:58:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8653412749517064) internal successors, (46350), 24857 states have internal predecessors, (46350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46350 transitions. [2022-01-10 17:58:43,584 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46350 transitions. Word has length 42 [2022-01-10 17:58:43,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:43,584 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46350 transitions. [2022-01-10 17:58:43,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46350 transitions. [2022-01-10 17:58:43,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 17:58:43,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:43,585 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] [2022-01-10 17:58:43,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:58:43,585 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)] === [2022-01-10 17:58:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:43,585 INFO L85 PathProgramCache]: Analyzing trace with hash -856819451, now seen corresponding path program 1 times [2022-01-10 17:58:43,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:43,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23265170] [2022-01-10 17:58:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:43,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:43,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23265170] [2022-01-10 17:58:43,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23265170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:43,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:43,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:58:43,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822153155] [2022-01-10 17:58:43,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:43,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:58:43,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:58:43,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:58:43,638 INFO L87 Difference]: Start difference. First operand 24858 states and 46350 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:49,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:49,647 INFO L93 Difference]: Finished difference Result 162571 states and 303094 transitions. [2022-01-10 17:58:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 17:58:49,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2022-01-10 17:58:49,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:50,041 INFO L225 Difference]: With dead ends: 162571 [2022-01-10 17:58:50,041 INFO L226 Difference]: Without dead ends: 139929 [2022-01-10 17:58:50,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 17:58:50,083 INFO L933 BasicCegarLoop]: 50173 mSDtfsCounter, 161717 mSDsluCounter, 134504 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161717 SdHoareTripleChecker+Valid, 184677 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:50,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161717 Valid, 184677 Invalid, 2357 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [543 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-10 17:58:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139929 states. [2022-01-10 17:58:52,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139929 to 47040. [2022-01-10 17:58:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47040 states, 47030 states have (on average 1.8647671698915587) internal successors, (87700), 47039 states have internal predecessors, (87700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47040 states to 47040 states and 87700 transitions. [2022-01-10 17:58:52,179 INFO L78 Accepts]: Start accepts. Automaton has 47040 states and 87700 transitions. Word has length 42 [2022-01-10 17:58:52,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:52,180 INFO L470 AbstractCegarLoop]: Abstraction has 47040 states and 87700 transitions. [2022-01-10 17:58:52,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:52,180 INFO L276 IsEmpty]: Start isEmpty. Operand 47040 states and 87700 transitions. [2022-01-10 17:58:52,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 17:58:52,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:52,181 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] [2022-01-10 17:58:52,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:58:52,181 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:58:52,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:52,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1569610655, now seen corresponding path program 1 times [2022-01-10 17:58:52,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:52,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073516431] [2022-01-10 17:58:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:52,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:52,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:52,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073516431] [2022-01-10 17:58:52,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073516431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:52,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:52,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:58:52,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951014063] [2022-01-10 17:58:52,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:52,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:58:52,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:52,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:58:52,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:58:52,239 INFO L87 Difference]: Start difference. First operand 47040 states and 87700 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:54,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:54,951 INFO L93 Difference]: Finished difference Result 108684 states and 202147 transitions. [2022-01-10 17:58:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 17:58:54,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2022-01-10 17:58:54,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:55,076 INFO L225 Difference]: With dead ends: 108684 [2022-01-10 17:58:55,077 INFO L226 Difference]: Without dead ends: 61720 [2022-01-10 17:58:55,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:58:55,111 INFO L933 BasicCegarLoop]: 23479 mSDtfsCounter, 70130 mSDsluCounter, 57252 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70130 SdHoareTripleChecker+Valid, 80731 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:55,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70130 Valid, 80731 Invalid, 697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [225 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 17:58:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61720 states. [2022-01-10 17:58:57,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61720 to 60743. [2022-01-10 17:58:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60743 states, 60733 states have (on average 1.8613439151696771) internal successors, (113045), 60742 states have internal predecessors, (113045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60743 states to 60743 states and 113045 transitions. [2022-01-10 17:58:57,287 INFO L78 Accepts]: Start accepts. Automaton has 60743 states and 113045 transitions. Word has length 43 [2022-01-10 17:58:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:57,287 INFO L470 AbstractCegarLoop]: Abstraction has 60743 states and 113045 transitions. [2022-01-10 17:58:57,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 60743 states and 113045 transitions. [2022-01-10 17:58:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 17:58:57,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:57,288 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] [2022-01-10 17:58:57,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:58:57,289 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)] === [2022-01-10 17:58:57,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:57,289 INFO L85 PathProgramCache]: Analyzing trace with hash 525435276, now seen corresponding path program 1 times [2022-01-10 17:58:57,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:57,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997894585] [2022-01-10 17:58:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:57,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:57,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:57,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997894585] [2022-01-10 17:58:57,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997894585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:57,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:57,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:58:57,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613268393] [2022-01-10 17:58:57,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:57,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:57,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:57,330 INFO L87 Difference]: Start difference. First operand 60743 states and 113045 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:59:01,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:59:01,535 INFO L93 Difference]: Finished difference Result 180921 states and 336653 transitions. [2022-01-10 17:59:01,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:59:01,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-01-10 17:59:01,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:59:01,787 INFO L225 Difference]: With dead ends: 180921 [2022-01-10 17:59:01,787 INFO L226 Difference]: Without dead ends: 120214 [2022-01-10 17:59:01,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:59:01,836 INFO L933 BasicCegarLoop]: 23482 mSDtfsCounter, 22817 mSDsluCounter, 22823 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22817 SdHoareTripleChecker+Valid, 46305 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 17:59:01,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22817 Valid, 46305 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 17:59:01,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120214 states.