/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:33:26,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:33:26,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:33:26,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:33:26,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:33:26,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:33:26,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:33:26,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:33:26,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:33:26,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:33:26,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:33:26,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:33:26,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:33:26,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:33:26,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:33:26,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:33:26,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:33:26,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:33:26,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:33:26,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:33:26,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:33:26,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:33:26,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:33:26,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:33:26,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:33:26,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:33:26,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:33:26,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:33:26,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:33:26,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:33:26,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:33:26,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:33:26,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:33:26,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:33:26,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:33:26,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:33:26,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:33:26,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:33:26,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:33:26,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:33:26,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:33:26,671 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:33:26,693 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:33:26,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:33:26,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:33:26,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:33:26,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:33:26,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:33:26,695 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:33:26,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:26,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:33:26,696 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:33:26,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:33:26,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:33:26,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:33:26,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:33:26,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:33:26,697 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:33:26,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:33:26,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:33:26,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:33:26,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:33:26,896 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:33:26,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c [2022-01-11 05:33:26,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5690d50a1/6e198cf778314f3f8160a118a04125ce/FLAGb82221611 [2022-01-11 05:33:27,417 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:33:27,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c [2022-01-11 05:33:27,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5690d50a1/6e198cf778314f3f8160a118a04125ce/FLAGb82221611 [2022-01-11 05:33:27,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5690d50a1/6e198cf778314f3f8160a118a04125ce [2022-01-11 05:33:27,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:33:27,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:33:27,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:27,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:33:27,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:33:27,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:27" (1/1) ... [2022-01-11 05:33:27,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d239663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:27, skipping insertion in model container [2022-01-11 05:33:27,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:27" (1/1) ... [2022-01-11 05:33:27,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:33:27,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:27,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2022-01-11 05:33:27,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:27,948 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:33:27,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:28,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2022-01-11 05:33:28,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:28,042 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:33:28,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2022-01-11 05:33:28,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:28,128 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:33:28,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28 WrapperNode [2022-01-11 05:33:28,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:28,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:28,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:33:28,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:33:28,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,271 INFO L137 Inliner]: procedures = 96, calls = 340, calls flagged for inlining = 193, calls inlined = 306, statements flattened = 9056 [2022-01-11 05:33:28,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:28,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:33:28,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:33:28,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:33:28,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:33:28,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:33:28,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:33:28,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:33:28,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (1/1) ... [2022-01-11 05:33:28,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:28,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:33:28,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:33:28,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:33:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:33:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:33:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:33:28,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:33:28,663 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:33:28,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:33:32,027 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:33:32,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:33:32,058 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:33:32,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:32 BoogieIcfgContainer [2022-01-11 05:33:32,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:33:32,064 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:33:32,064 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:33:32,065 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:33:32,067 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:32" (1/1) ... [2022-01-11 05:33:32,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:32 BasicIcfg [2022-01-11 05:33:32,563 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:33:32,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:33:32,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:33:32,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:33:32,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:33:27" (1/4) ... [2022-01-11 05:33:32,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b95e74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:32, skipping insertion in model container [2022-01-11 05:33:32,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:28" (2/4) ... [2022-01-11 05:33:32,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b95e74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:32, skipping insertion in model container [2022-01-11 05:33:32,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:32" (3/4) ... [2022-01-11 05:33:32,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b95e74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:33:32, skipping insertion in model container [2022-01-11 05:33:32,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:32" (4/4) ... [2022-01-11 05:33:32,568 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product19.cil.cTransformedIcfg [2022-01-11 05:33:32,571 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:33:32,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:33:32,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:33:32,608 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:33:32,609 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:33:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 2568 states, 2562 states have (on average 1.8622170179547228) internal successors, (4771), 2567 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:33:32,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:32,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:32,663 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:32,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:32,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1095089428, now seen corresponding path program 1 times [2022-01-11 05:33:32,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:32,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242469267] [2022-01-11 05:33:32,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:32,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:32,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:32,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:32,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242469267] [2022-01-11 05:33:32,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242469267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:32,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:32,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:32,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029168822] [2022-01-11 05:33:32,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:32,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:32,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:32,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:32,962 INFO L87 Difference]: Start difference. First operand has 2568 states, 2562 states have (on average 1.8622170179547228) internal successors, (4771), 2567 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:33,092 INFO L93 Difference]: Finished difference Result 5121 states and 9519 transitions. [2022-01-11 05:33:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:33,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 05:33:33,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:33,111 INFO L225 Difference]: With dead ends: 5121 [2022-01-11 05:33:33,111 INFO L226 Difference]: Without dead ends: 2557 [2022-01-11 05:33:33,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:33,120 INFO L933 BasicCegarLoop]: 4750 mSDtfsCounter, 4745 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 4761 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:33,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4745 Valid, 4761 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:33,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-01-11 05:33:33,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2557. [2022-01-11 05:33:33,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2552 states have (on average 1.8601097178683386) internal successors, (4747), 2556 states have internal predecessors, (4747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4747 transitions. [2022-01-11 05:33:33,233 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4747 transitions. Word has length 51 [2022-01-11 05:33:33,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:33,234 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 4747 transitions. [2022-01-11 05:33:33,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4747 transitions. [2022-01-11 05:33:33,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:33:33,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:33,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:33,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:33:33,238 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 118029958, now seen corresponding path program 1 times [2022-01-11 05:33:33,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:33,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487487049] [2022-01-11 05:33:33,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:33,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:33,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:33,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487487049] [2022-01-11 05:33:33,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487487049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:33,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:33,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:33:33,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785778252] [2022-01-11 05:33:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:33,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:33:33,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:33,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:33:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:33,422 INFO L87 Difference]: Start difference. First operand 2557 states and 4747 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:33,545 INFO L93 Difference]: Finished difference Result 5100 states and 9479 transitions. [2022-01-11 05:33:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:33,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:33:33,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:33,555 INFO L225 Difference]: With dead ends: 5100 [2022-01-11 05:33:33,555 INFO L226 Difference]: Without dead ends: 2557 [2022-01-11 05:33:33,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:33,561 INFO L933 BasicCegarLoop]: 4740 mSDtfsCounter, 4739 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 4768 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:33,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4739 Valid, 4768 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-01-11 05:33:33,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2557. [2022-01-11 05:33:33,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2552 states have (on average 1.859717868338558) internal successors, (4746), 2556 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4746 transitions. [2022-01-11 05:33:33,619 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4746 transitions. Word has length 58 [2022-01-11 05:33:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:33,620 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 4746 transitions. [2022-01-11 05:33:33,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4746 transitions. [2022-01-11 05:33:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:33:33,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:33,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:33,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:33:33,631 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:33,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:33,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1818770437, now seen corresponding path program 1 times [2022-01-11 05:33:33,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:33,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211160301] [2022-01-11 05:33:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:33,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:33,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:33,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211160301] [2022-01-11 05:33:33,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211160301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:33,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:33,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:33,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613207573] [2022-01-11 05:33:33,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:33,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:33,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:33,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:33,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:33,730 INFO L87 Difference]: Start difference. First operand 2557 states and 4746 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:33,833 INFO L93 Difference]: Finished difference Result 5064 states and 9407 transitions. [2022-01-11 05:33:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:33,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:33:33,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:33,843 INFO L225 Difference]: With dead ends: 5064 [2022-01-11 05:33:33,843 INFO L226 Difference]: Without dead ends: 2557 [2022-01-11 05:33:33,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:33,847 INFO L933 BasicCegarLoop]: 4686 mSDtfsCounter, 4705 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:33,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4705 Valid, 4700 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:33,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-01-11 05:33:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2557. [2022-01-11 05:33:33,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2552 states have (on average 1.849921630094044) internal successors, (4721), 2556 states have internal predecessors, (4721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4721 transitions. [2022-01-11 05:33:33,902 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4721 transitions. Word has length 58 [2022-01-11 05:33:33,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:33,902 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 4721 transitions. [2022-01-11 05:33:33,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4721 transitions. [2022-01-11 05:33:33,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:33:33,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:33,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:33,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:33:33,905 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1075099338, now seen corresponding path program 1 times [2022-01-11 05:33:33,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:33,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107110979] [2022-01-11 05:33:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:33,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:33,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:33,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107110979] [2022-01-11 05:33:33,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107110979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:33,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:33,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:33,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938319522] [2022-01-11 05:33:33,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:33,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:33,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:33,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:33,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:33,964 INFO L87 Difference]: Start difference. First operand 2557 states and 4721 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:34,137 INFO L93 Difference]: Finished difference Result 5763 states and 10688 transitions. [2022-01-11 05:33:34,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:34,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 05:33:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:34,153 INFO L225 Difference]: With dead ends: 5763 [2022-01-11 05:33:34,153 INFO L226 Difference]: Without dead ends: 4461 [2022-01-11 05:33:34,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:34,162 INFO L933 BasicCegarLoop]: 5186 mSDtfsCounter, 4655 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 8733 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:34,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4655 Valid, 8733 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4461 states. [2022-01-11 05:33:34,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4461 to 4461. [2022-01-11 05:33:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4461 states, 4456 states have (on average 1.857495511669659) internal successors, (8277), 4460 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 8277 transitions. [2022-01-11 05:33:34,276 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 8277 transitions. Word has length 61 [2022-01-11 05:33:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:34,277 INFO L470 AbstractCegarLoop]: Abstraction has 4461 states and 8277 transitions. [2022-01-11 05:33:34,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 8277 transitions. [2022-01-11 05:33:34,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:33:34,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:34,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:34,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:33:34,280 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:34,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:34,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1382244313, now seen corresponding path program 1 times [2022-01-11 05:33:34,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:34,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009607322] [2022-01-11 05:33:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:34,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:34,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:34,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009607322] [2022-01-11 05:33:34,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009607322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:34,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:34,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:34,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764765290] [2022-01-11 05:33:34,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:34,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:34,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:34,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:34,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:34,386 INFO L87 Difference]: Start difference. First operand 4461 states and 8277 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:34,573 INFO L93 Difference]: Finished difference Result 10732 states and 19954 transitions. [2022-01-11 05:33:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:34,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 05:33:34,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:34,600 INFO L225 Difference]: With dead ends: 10732 [2022-01-11 05:33:34,600 INFO L226 Difference]: Without dead ends: 8152 [2022-01-11 05:33:34,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:34,607 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 4654 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:34,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4654 Valid, 8268 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:34,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8152 states. [2022-01-11 05:33:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8152 to 8150. [2022-01-11 05:33:34,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8150 states, 8145 states have (on average 1.861632903621854) internal successors, (15163), 8149 states have internal predecessors, (15163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8150 states to 8150 states and 15163 transitions. [2022-01-11 05:33:34,897 INFO L78 Accepts]: Start accepts. Automaton has 8150 states and 15163 transitions. Word has length 63 [2022-01-11 05:33:34,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:34,900 INFO L470 AbstractCegarLoop]: Abstraction has 8150 states and 15163 transitions. [2022-01-11 05:33:34,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 8150 states and 15163 transitions. [2022-01-11 05:33:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:33:34,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:34,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:34,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:33:34,903 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:34,903 INFO L85 PathProgramCache]: Analyzing trace with hash -308125897, now seen corresponding path program 1 times [2022-01-11 05:33:34,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:34,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797856949] [2022-01-11 05:33:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:34,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:34,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:34,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797856949] [2022-01-11 05:33:34,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797856949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:34,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:34,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:34,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784970383] [2022-01-11 05:33:34,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:34,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:34,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:34,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:34,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:34,966 INFO L87 Difference]: Start difference. First operand 8150 states and 15163 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:35,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:35,281 INFO L93 Difference]: Finished difference Result 20420 states and 38015 transitions. [2022-01-11 05:33:35,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:35,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 05:33:35,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:35,338 INFO L225 Difference]: With dead ends: 20420 [2022-01-11 05:33:35,338 INFO L226 Difference]: Without dead ends: 15293 [2022-01-11 05:33:35,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:35,355 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 4642 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4642 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:35,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4642 Valid, 8271 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15293 states. [2022-01-11 05:33:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15293 to 15289. [2022-01-11 05:33:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15289 states, 15284 states have (on average 1.8634519759225334) internal successors, (28481), 15288 states have internal predecessors, (28481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15289 states to 15289 states and 28481 transitions. [2022-01-11 05:33:35,818 INFO L78 Accepts]: Start accepts. Automaton has 15289 states and 28481 transitions. Word has length 64 [2022-01-11 05:33:35,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:35,818 INFO L470 AbstractCegarLoop]: Abstraction has 15289 states and 28481 transitions. [2022-01-11 05:33:35,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:35,818 INFO L276 IsEmpty]: Start isEmpty. Operand 15289 states and 28481 transitions. [2022-01-11 05:33:35,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:33:35,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:35,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:35,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:33:35,822 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:35,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:35,823 INFO L85 PathProgramCache]: Analyzing trace with hash -961953516, now seen corresponding path program 1 times [2022-01-11 05:33:35,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:35,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015513838] [2022-01-11 05:33:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:35,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:35,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:35,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015513838] [2022-01-11 05:33:35,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015513838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:35,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:35,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:35,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421415439] [2022-01-11 05:33:35,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:35,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:35,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:35,892 INFO L87 Difference]: Start difference. First operand 15289 states and 28481 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:36,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:36,412 INFO L93 Difference]: Finished difference Result 39296 states and 73192 transitions. [2022-01-11 05:33:36,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:36,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-11 05:33:36,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:36,477 INFO L225 Difference]: With dead ends: 39296 [2022-01-11 05:33:36,477 INFO L226 Difference]: Without dead ends: 29094 [2022-01-11 05:33:36,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:36,491 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 4641 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 8274 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:36,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4641 Valid, 8274 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29094 states. [2022-01-11 05:33:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29094 to 29088. [2022-01-11 05:33:37,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29088 states, 29083 states have (on average 1.8638723652993157) internal successors, (54207), 29087 states have internal predecessors, (54207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:37,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29088 states to 29088 states and 54207 transitions. [2022-01-11 05:33:37,168 INFO L78 Accepts]: Start accepts. Automaton has 29088 states and 54207 transitions. Word has length 65 [2022-01-11 05:33:37,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:37,169 INFO L470 AbstractCegarLoop]: Abstraction has 29088 states and 54207 transitions. [2022-01-11 05:33:37,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 29088 states and 54207 transitions. [2022-01-11 05:33:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 05:33:37,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:37,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:37,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:33:37,172 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:37,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:37,172 INFO L85 PathProgramCache]: Analyzing trace with hash 244226842, now seen corresponding path program 1 times [2022-01-11 05:33:37,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:37,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243919514] [2022-01-11 05:33:37,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:37,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:37,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:37,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:37,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243919514] [2022-01-11 05:33:37,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243919514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:37,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:37,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:37,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861400085] [2022-01-11 05:33:37,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:37,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:37,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:37,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:37,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:37,220 INFO L87 Difference]: Start difference. First operand 29088 states and 54207 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:38,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:38,098 INFO L93 Difference]: Finished difference Result 76048 states and 141652 transitions. [2022-01-11 05:33:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:38,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 05:33:38,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:38,220 INFO L225 Difference]: With dead ends: 76048 [2022-01-11 05:33:38,221 INFO L226 Difference]: Without dead ends: 55728 [2022-01-11 05:33:38,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:38,255 INFO L933 BasicCegarLoop]: 4719 mSDtfsCounter, 4640 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 8278 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:38,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4640 Valid, 8278 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:38,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55728 states. [2022-01-11 05:33:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55728 to 55720. [2022-01-11 05:33:39,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.8634658530018846) internal successors, (103823), 55719 states have internal predecessors, (103823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 103823 transitions. [2022-01-11 05:33:39,484 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 103823 transitions. Word has length 66 [2022-01-11 05:33:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:39,485 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 103823 transitions. [2022-01-11 05:33:39,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 103823 transitions. [2022-01-11 05:33:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-11 05:33:39,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:39,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:39,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:33:39,507 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:39,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1050047841, now seen corresponding path program 1 times [2022-01-11 05:33:39,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:39,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464800615] [2022-01-11 05:33:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:39,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:39,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:39,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464800615] [2022-01-11 05:33:39,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464800615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:39,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:39,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:39,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150862942] [2022-01-11 05:33:39,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:39,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:39,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:39,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:39,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:39,741 INFO L87 Difference]: Start difference. First operand 55720 states and 103823 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:41,476 INFO L93 Difference]: Finished difference Result 113799 states and 211998 transitions. [2022-01-11 05:33:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2022-01-11 05:33:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:41,595 INFO L225 Difference]: With dead ends: 113799 [2022-01-11 05:33:41,595 INFO L226 Difference]: Without dead ends: 59068 [2022-01-11 05:33:41,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:41,645 INFO L933 BasicCegarLoop]: 5333 mSDtfsCounter, 3655 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3655 SdHoareTripleChecker+Valid, 7625 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:41,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3655 Valid, 7625 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:33:41,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59068 states. [2022-01-11 05:33:42,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59068 to 55720. [2022-01-11 05:33:42,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.8391456519788207) internal successors, (102468), 55719 states have internal predecessors, (102468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 102468 transitions. [2022-01-11 05:33:43,056 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 102468 transitions. Word has length 108 [2022-01-11 05:33:43,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:43,057 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 102468 transitions. [2022-01-11 05:33:43,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:43,057 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 102468 transitions. [2022-01-11 05:33:43,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-11 05:33:43,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:43,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:43,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:33:43,090 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:43,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:43,090 INFO L85 PathProgramCache]: Analyzing trace with hash 942503378, now seen corresponding path program 1 times [2022-01-11 05:33:43,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:43,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240620935] [2022-01-11 05:33:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:43,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:43,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:43,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240620935] [2022-01-11 05:33:43,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240620935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:43,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:43,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:43,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366918754] [2022-01-11 05:33:43,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:43,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:43,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:43,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:43,150 INFO L87 Difference]: Start difference. First operand 55720 states and 102468 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:44,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:44,563 INFO L93 Difference]: Finished difference Result 115750 states and 212997 transitions. [2022-01-11 05:33:44,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:44,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2022-01-11 05:33:44,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:44,681 INFO L225 Difference]: With dead ends: 115750 [2022-01-11 05:33:44,681 INFO L226 Difference]: Without dead ends: 62305 [2022-01-11 05:33:44,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:44,726 INFO L933 BasicCegarLoop]: 5839 mSDtfsCounter, 3380 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 8449 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:44,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3380 Valid, 8449 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:33:44,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62305 states. [2022-01-11 05:33:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62305 to 55720. [2022-01-11 05:33:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.8182356636453378) internal successors, (101303), 55719 states have internal predecessors, (101303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 101303 transitions. [2022-01-11 05:33:46,055 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 101303 transitions. Word has length 113 [2022-01-11 05:33:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:46,056 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 101303 transitions. [2022-01-11 05:33:46,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:46,056 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 101303 transitions. [2022-01-11 05:33:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-11 05:33:46,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:46,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:46,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:33:46,075 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:46,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:46,076 INFO L85 PathProgramCache]: Analyzing trace with hash 383376542, now seen corresponding path program 1 times [2022-01-11 05:33:46,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:46,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509059302] [2022-01-11 05:33:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:46,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:46,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:46,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509059302] [2022-01-11 05:33:46,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509059302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:46,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:46,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:46,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274320439] [2022-01-11 05:33:46,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:46,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:46,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:46,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:46,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:46,289 INFO L87 Difference]: Start difference. First operand 55720 states and 101303 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:47,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:47,754 INFO L93 Difference]: Finished difference Result 117374 states and 213929 transitions. [2022-01-11 05:33:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:47,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-11 05:33:47,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:47,875 INFO L225 Difference]: With dead ends: 117374 [2022-01-11 05:33:47,875 INFO L226 Difference]: Without dead ends: 66375 [2022-01-11 05:33:47,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:47,911 INFO L933 BasicCegarLoop]: 6237 mSDtfsCounter, 3227 mSDsluCounter, 2928 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 9165 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:47,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3227 Valid, 9165 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:33:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66375 states. [2022-01-11 05:33:49,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66375 to 55720. [2022-01-11 05:33:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.801633312393431) internal successors, (100378), 55719 states have internal predecessors, (100378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:49,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 100378 transitions. [2022-01-11 05:33:49,202 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 100378 transitions. Word has length 117 [2022-01-11 05:33:49,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:49,202 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 100378 transitions. [2022-01-11 05:33:49,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:49,202 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 100378 transitions. [2022-01-11 05:33:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-11 05:33:49,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:49,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:49,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:33:49,220 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:49,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1120579070, now seen corresponding path program 1 times [2022-01-11 05:33:49,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:49,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273747777] [2022-01-11 05:33:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:49,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:49,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:49,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273747777] [2022-01-11 05:33:49,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273747777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:49,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:49,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:49,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237914772] [2022-01-11 05:33:49,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:49,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:49,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:49,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:49,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:49,275 INFO L87 Difference]: Start difference. First operand 55720 states and 100378 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:51,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:51,157 INFO L93 Difference]: Finished difference Result 118818 states and 215241 transitions. [2022-01-11 05:33:51,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:51,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2022-01-11 05:33:51,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:51,294 INFO L225 Difference]: With dead ends: 118818 [2022-01-11 05:33:51,294 INFO L226 Difference]: Without dead ends: 71130 [2022-01-11 05:33:51,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:51,316 INFO L933 BasicCegarLoop]: 6625 mSDtfsCounter, 3094 mSDsluCounter, 3246 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:51,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3094 Valid, 9871 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:33:51,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71130 states. [2022-01-11 05:33:52,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71130 to 55720. [2022-01-11 05:33:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.7902360226150946) internal successors, (99743), 55719 states have internal predecessors, (99743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 99743 transitions. [2022-01-11 05:33:52,446 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 99743 transitions. Word has length 120 [2022-01-11 05:33:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:52,447 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 99743 transitions. [2022-01-11 05:33:52,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 99743 transitions. [2022-01-11 05:33:52,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-11 05:33:52,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:52,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:52,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:33:52,463 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:52,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:52,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1665236790, now seen corresponding path program 1 times [2022-01-11 05:33:52,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:52,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658819499] [2022-01-11 05:33:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:52,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:52,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:52,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658819499] [2022-01-11 05:33:52,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658819499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:52,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:52,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:52,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790113976] [2022-01-11 05:33:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:52,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:52,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:52,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:52,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:52,553 INFO L87 Difference]: Start difference. First operand 55720 states and 99743 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:54,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:54,245 INFO L93 Difference]: Finished difference Result 120226 states and 217262 transitions. [2022-01-11 05:33:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:54,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-11 05:33:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:54,456 INFO L225 Difference]: With dead ends: 120226 [2022-01-11 05:33:54,456 INFO L226 Difference]: Without dead ends: 76193 [2022-01-11 05:33:54,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:54,479 INFO L933 BasicCegarLoop]: 7003 mSDtfsCounter, 2981 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2981 SdHoareTripleChecker+Valid, 10567 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:54,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2981 Valid, 10567 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:33:54,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76193 states. [2022-01-11 05:33:55,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76193 to 55720. [2022-01-11 05:33:55,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.7844925065063268) internal successors, (99423), 55719 states have internal predecessors, (99423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:55,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 99423 transitions. [2022-01-11 05:33:55,884 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 99423 transitions. Word has length 122 [2022-01-11 05:33:55,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:55,884 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 99423 transitions. [2022-01-11 05:33:55,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:55,885 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 99423 transitions. [2022-01-11 05:33:55,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-11 05:33:55,901 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:55,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:55,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:33:55,902 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:55,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:55,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1138954863, now seen corresponding path program 1 times [2022-01-11 05:33:55,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:55,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775531972] [2022-01-11 05:33:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:55,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:55,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:55,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775531972] [2022-01-11 05:33:55,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775531972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:55,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:55,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:55,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100826582] [2022-01-11 05:33:55,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:55,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:55,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:55,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:55,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:55,994 INFO L87 Difference]: Start difference. First operand 55720 states and 99423 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:57,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:57,301 INFO L93 Difference]: Finished difference Result 111390 states and 198786 transitions. [2022-01-11 05:33:57,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:33:57,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-11 05:33:57,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:57,396 INFO L225 Difference]: With dead ends: 111390 [2022-01-11 05:33:57,396 INFO L226 Difference]: Without dead ends: 55693 [2022-01-11 05:33:57,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:57,427 INFO L933 BasicCegarLoop]: 4531 mSDtfsCounter, 9041 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9041 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:57,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9041 Valid, 4571 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55693 states. [2022-01-11 05:33:58,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55693 to 55693. [2022-01-11 05:33:58,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55693 states, 55688 states have (on average 1.784711248383853) internal successors, (99387), 55692 states have internal predecessors, (99387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:58,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55693 states to 55693 states and 99387 transitions. [2022-01-11 05:33:58,789 INFO L78 Accepts]: Start accepts. Automaton has 55693 states and 99387 transitions. Word has length 122 [2022-01-11 05:33:58,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:58,789 INFO L470 AbstractCegarLoop]: Abstraction has 55693 states and 99387 transitions. [2022-01-11 05:33:58,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:58,789 INFO L276 IsEmpty]: Start isEmpty. Operand 55693 states and 99387 transitions. [2022-01-11 05:33:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-11 05:33:58,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:58,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:58,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:33:58,803 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:58,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1604024323, now seen corresponding path program 1 times [2022-01-11 05:33:58,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:58,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760176550] [2022-01-11 05:33:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:58,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:58,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:58,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760176550] [2022-01-11 05:33:58,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760176550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:58,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:58,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:58,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420447851] [2022-01-11 05:33:58,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:58,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:58,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:58,866 INFO L87 Difference]: Start difference. First operand 55693 states and 99387 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:00,106 INFO L93 Difference]: Finished difference Result 111357 states and 198739 transitions. [2022-01-11 05:34:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:34:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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 125 [2022-01-11 05:34:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:00,192 INFO L225 Difference]: With dead ends: 111357 [2022-01-11 05:34:00,192 INFO L226 Difference]: Without dead ends: 55693 [2022-01-11 05:34:00,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:34:00,224 INFO L933 BasicCegarLoop]: 4522 mSDtfsCounter, 9028 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9028 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:00,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9028 Valid, 4572 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55693 states. [2022-01-11 05:34:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55693 to 55693. [2022-01-11 05:34:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55693 states, 55688 states have (on average 1.784693291193794) internal successors, (99386), 55692 states have internal predecessors, (99386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55693 states to 55693 states and 99386 transitions. [2022-01-11 05:34:01,686 INFO L78 Accepts]: Start accepts. Automaton has 55693 states and 99386 transitions. Word has length 125 [2022-01-11 05:34:01,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:01,686 INFO L470 AbstractCegarLoop]: Abstraction has 55693 states and 99386 transitions. [2022-01-11 05:34:01,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 55693 states and 99386 transitions. [2022-01-11 05:34:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-11 05:34:01,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:01,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:01,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:34:01,700 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:01,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:01,700 INFO L85 PathProgramCache]: Analyzing trace with hash -39345956, now seen corresponding path program 1 times [2022-01-11 05:34:01,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:01,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824539500] [2022-01-11 05:34:01,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:01,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:01,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:01,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824539500] [2022-01-11 05:34:01,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824539500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:01,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:01,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:01,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505155861] [2022-01-11 05:34:01,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:01,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:34:01,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:01,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:34:01,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:34:01,757 INFO L87 Difference]: Start difference. First operand 55693 states and 99386 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:04,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:04,412 INFO L93 Difference]: Finished difference Result 160768 states and 286117 transitions. [2022-01-11 05:34:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:34:04,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2022-01-11 05:34:04,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:04,595 INFO L225 Difference]: With dead ends: 160768 [2022-01-11 05:34:04,595 INFO L226 Difference]: Without dead ends: 105112 [2022-01-11 05:34:04,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:34:04,644 INFO L933 BasicCegarLoop]: 4557 mSDtfsCounter, 12059 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12059 SdHoareTripleChecker+Valid, 8375 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:04,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12059 Valid, 8375 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:34:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105112 states. [2022-01-11 05:34:06,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105112 to 55693. [2022-01-11 05:34:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55693 states, 55688 states have (on average 1.7658023272518317) internal successors, (98334), 55692 states have internal predecessors, (98334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55693 states to 55693 states and 98334 transitions. [2022-01-11 05:34:06,573 INFO L78 Accepts]: Start accepts. Automaton has 55693 states and 98334 transitions. Word has length 126 [2022-01-11 05:34:06,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:06,574 INFO L470 AbstractCegarLoop]: Abstraction has 55693 states and 98334 transitions. [2022-01-11 05:34:06,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:06,574 INFO L276 IsEmpty]: Start isEmpty. Operand 55693 states and 98334 transitions. [2022-01-11 05:34:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-11 05:34:06,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:06,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:06,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:34:06,585 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:06,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1368017332, now seen corresponding path program 1 times [2022-01-11 05:34:06,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:06,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691334411] [2022-01-11 05:34:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:06,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:06,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:06,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691334411] [2022-01-11 05:34:06,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691334411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:06,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:06,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:34:06,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753972186] [2022-01-11 05:34:06,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:06,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:34:06,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:06,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:34:06,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:34:06,654 INFO L87 Difference]: Start difference. First operand 55693 states and 98334 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:21,424 INFO L93 Difference]: Finished difference Result 637974 states and 1123803 transitions. [2022-01-11 05:34:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-11 05:34:21,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 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 130 [2022-01-11 05:34:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:22,986 INFO L225 Difference]: With dead ends: 637974 [2022-01-11 05:34:22,986 INFO L226 Difference]: Without dead ends: 582336 [2022-01-11 05:34:23,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-11 05:34:23,146 INFO L933 BasicCegarLoop]: 10391 mSDtfsCounter, 35975 mSDsluCounter, 61810 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35975 SdHoareTripleChecker+Valid, 72201 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:23,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35975 Valid, 72201 Invalid, 1731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [186 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-11 05:34:23,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582336 states.