/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:05:40,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:05:40,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:05:40,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:05:40,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:05:40,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:05:40,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:05:40,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:05:40,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:05:40,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:05:40,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:05:40,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:05:40,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:05:40,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:05:40,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:05:40,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:05:40,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:05:40,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:05:40,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:05:40,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:05:40,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:05:40,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:05:40,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:05:40,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:05:40,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:05:40,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:05:40,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:05:40,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:05:40,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:05:40,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:05:40,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:05:40,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:05:40,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:05:40,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:05:40,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:05:40,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:05:40,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:05:40,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:05:40,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:05:40,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:05:40,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:05:40,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:05:40,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:05:40,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:05:40,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:05:40,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:05:40,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:05:40,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:05:40,814 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:05:40,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:05:40,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:05:40,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:05:40,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:05:40,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:05:40,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:05:40,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:05:40,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:05:40,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:05:40,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:05:40,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:05:40,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:05:40,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:05:40,817 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:05:40,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:05:40,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:05:40,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:05:40,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:05:40,818 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:05:40,818 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:05:40,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:05:41,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:05:41,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:05:41,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:05:41,027 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:05:41,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product17.cil.c [2022-01-10 12:05:41,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a04da6e66/08e6ede9772c4fa1ba32b44ed7952bfd/FLAGc55d29b06 [2022-01-10 12:05:41,453 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:05:41,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product17.cil.c [2022-01-10 12:05:41,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a04da6e66/08e6ede9772c4fa1ba32b44ed7952bfd/FLAGc55d29b06 [2022-01-10 12:05:41,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a04da6e66/08e6ede9772c4fa1ba32b44ed7952bfd [2022-01-10 12:05:41,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:05:41,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:05:41,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:05:41,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:05:41,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:05:41,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:05:41" (1/1) ... [2022-01-10 12:05:41,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ce9cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:41, skipping insertion in model container [2022-01-10 12:05:41,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:05:41" (1/1) ... [2022-01-10 12:05:41,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:05:41,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:05:42,065 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_product17.cil.c[17414,17427] [2022-01-10 12:05:42,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:05:42,207 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:05:42,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:05:42,230 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_product17.cil.c[17414,17427] [2022-01-10 12:05:42,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:05:42,284 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:05:42,301 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_product17.cil.c[17414,17427] [2022-01-10 12:05:42,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:05:42,355 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:05:42,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42 WrapperNode [2022-01-10 12:05:42,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:05:42,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:05:42,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:05:42,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:05:42,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,485 INFO L137 Inliner]: procedures = 92, calls = 332, calls flagged for inlining = 185, calls inlined = 276, statements flattened = 8497 [2022-01-10 12:05:42,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:05:42,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:05:42,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:05:42,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:05:42,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:05:42,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:05:42,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:05:42,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:05:42,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (1/1) ... [2022-01-10 12:05:42,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:05:42,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:05:42,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:05:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:05:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:05:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:05:42,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:05:42,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:05:42,938 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:05:42,939 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:05:46,221 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:05:46,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:05:46,238 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:05:46,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:05:46 BoogieIcfgContainer [2022-01-10 12:05:46,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:05:46,243 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:05:46,243 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:05:46,244 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:05:46,246 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:05:46" (1/1) ... [2022-01-10 12:05:46,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:05:46 BasicIcfg [2022-01-10 12:05:46,886 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:05:46,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:05:46,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:05:46,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:05:46,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:05:41" (1/4) ... [2022-01-10 12:05:46,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1760da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:05:46, skipping insertion in model container [2022-01-10 12:05:46,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:42" (2/4) ... [2022-01-10 12:05:46,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1760da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:05:46, skipping insertion in model container [2022-01-10 12:05:46,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:05:46" (3/4) ... [2022-01-10 12:05:46,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1760da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:05:46, skipping insertion in model container [2022-01-10 12:05:46,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:05:46" (4/4) ... [2022-01-10 12:05:46,892 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product17.cil.cTransformedIcfg [2022-01-10 12:05:46,895 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:05:46,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 12:05:46,931 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:05:46,936 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:05:46,936 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 12:05:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 2476 states, 2470 states have (on average 1.8692307692307693) internal successors, (4617), 2475 states have internal predecessors, (4617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 12:05:47,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:47,061 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] [2022-01-10 12:05:47,062 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:47,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:47,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1186674566, now seen corresponding path program 1 times [2022-01-10 12:05:47,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:47,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265676227] [2022-01-10 12:05:47,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:47,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:47,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265676227] [2022-01-10 12:05:47,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265676227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:47,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:47,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:47,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585095296] [2022-01-10 12:05:47,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:47,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:47,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:47,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:47,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:47,440 INFO L87 Difference]: Start difference. First operand has 2476 states, 2470 states have (on average 1.8692307692307693) internal successors, (4617), 2475 states have internal predecessors, (4617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:47,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:47,631 INFO L93 Difference]: Finished difference Result 4937 states and 9211 transitions. [2022-01-10 12:05:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:47,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2022-01-10 12:05:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:47,656 INFO L225 Difference]: With dead ends: 4937 [2022-01-10 12:05:47,656 INFO L226 Difference]: Without dead ends: 2465 [2022-01-10 12:05:47,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:47,669 INFO L933 BasicCegarLoop]: 4596 mSDtfsCounter, 4591 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4591 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:47,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4591 Valid, 4607 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:47,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-01-10 12:05:47,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2022-01-10 12:05:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2460 states have (on average 1.8670731707317074) internal successors, (4593), 2464 states have internal predecessors, (4593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 4593 transitions. [2022-01-10 12:05:47,823 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 4593 transitions. Word has length 45 [2022-01-10 12:05:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:47,824 INFO L470 AbstractCegarLoop]: Abstraction has 2465 states and 4593 transitions. [2022-01-10 12:05:47,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:47,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 4593 transitions. [2022-01-10 12:05:47,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:05:47,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:47,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:47,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:05:47,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:47,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:47,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1373017451, now seen corresponding path program 1 times [2022-01-10 12:05:47,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:47,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220524248] [2022-01-10 12:05:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:47,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:47,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:47,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:47,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220524248] [2022-01-10 12:05:47,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220524248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:47,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:47,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:47,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186729043] [2022-01-10 12:05:47,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:47,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:47,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:47,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:47,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:47,935 INFO L87 Difference]: Start difference. First operand 2465 states and 4593 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:48,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:48,037 INFO L93 Difference]: Finished difference Result 4880 states and 9100 transitions. [2022-01-10 12:05:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:48,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 12:05:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:48,046 INFO L225 Difference]: With dead ends: 4880 [2022-01-10 12:05:48,046 INFO L226 Difference]: Without dead ends: 2465 [2022-01-10 12:05:48,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:48,050 INFO L933 BasicCegarLoop]: 4533 mSDtfsCounter, 4551 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4551 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:48,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4551 Valid, 4548 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:48,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-01-10 12:05:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2022-01-10 12:05:48,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2460 states have (on average 1.856910569105691) internal successors, (4568), 2464 states have internal predecessors, (4568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 4568 transitions. [2022-01-10 12:05:48,184 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 4568 transitions. Word has length 52 [2022-01-10 12:05:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:48,185 INFO L470 AbstractCegarLoop]: Abstraction has 2465 states and 4568 transitions. [2022-01-10 12:05:48,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 4568 transitions. [2022-01-10 12:05:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:05:48,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:48,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:48,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:05:48,195 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:48,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1494329940, now seen corresponding path program 1 times [2022-01-10 12:05:48,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:48,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319789637] [2022-01-10 12:05:48,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:48,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:48,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:48,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319789637] [2022-01-10 12:05:48,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319789637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:48,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:48,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:48,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481656043] [2022-01-10 12:05:48,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:48,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:48,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:48,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:48,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:48,288 INFO L87 Difference]: Start difference. First operand 2465 states and 4568 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:48,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:48,439 INFO L93 Difference]: Finished difference Result 5579 states and 10381 transitions. [2022-01-10 12:05:48,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:48,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 12:05:48,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:48,455 INFO L225 Difference]: With dead ends: 5579 [2022-01-10 12:05:48,455 INFO L226 Difference]: Without dead ends: 4323 [2022-01-10 12:05:48,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:48,466 INFO L933 BasicCegarLoop]: 5033 mSDtfsCounter, 4508 mSDsluCounter, 3470 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4508 SdHoareTripleChecker+Valid, 8503 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:48,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4508 Valid, 8503 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:48,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2022-01-10 12:05:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4323. [2022-01-10 12:05:48,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4318 states have (on average 1.8635942566002779) internal successors, (8047), 4322 states have internal predecessors, (8047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:48,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 8047 transitions. [2022-01-10 12:05:48,575 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 8047 transitions. Word has length 55 [2022-01-10 12:05:48,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:48,576 INFO L470 AbstractCegarLoop]: Abstraction has 4323 states and 8047 transitions. [2022-01-10 12:05:48,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 8047 transitions. [2022-01-10 12:05:48,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 12:05:48,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:48,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:48,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:05:48,578 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:48,579 INFO L85 PathProgramCache]: Analyzing trace with hash -982994793, now seen corresponding path program 1 times [2022-01-10 12:05:48,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:48,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126759218] [2022-01-10 12:05:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:48,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:48,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:48,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126759218] [2022-01-10 12:05:48,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126759218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:48,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:48,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:48,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782693792] [2022-01-10 12:05:48,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:48,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:48,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:48,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:48,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:48,650 INFO L87 Difference]: Start difference. First operand 4323 states and 8047 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:48,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:48,877 INFO L93 Difference]: Finished difference Result 10410 states and 19416 transitions. [2022-01-10 12:05:48,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:48,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 12:05:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:48,905 INFO L225 Difference]: With dead ends: 10410 [2022-01-10 12:05:48,906 INFO L226 Difference]: Without dead ends: 7922 [2022-01-10 12:05:48,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:48,918 INFO L933 BasicCegarLoop]: 4565 mSDtfsCounter, 4507 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 8038 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:48,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4507 Valid, 8038 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7922 states. [2022-01-10 12:05:49,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7922 to 7920. [2022-01-10 12:05:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7920 states, 7915 states have (on average 1.8672141503474415) internal successors, (14779), 7919 states have internal predecessors, (14779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7920 states to 7920 states and 14779 transitions. [2022-01-10 12:05:49,119 INFO L78 Accepts]: Start accepts. Automaton has 7920 states and 14779 transitions. Word has length 57 [2022-01-10 12:05:49,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:49,119 INFO L470 AbstractCegarLoop]: Abstraction has 7920 states and 14779 transitions. [2022-01-10 12:05:49,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:49,120 INFO L276 IsEmpty]: Start isEmpty. Operand 7920 states and 14779 transitions. [2022-01-10 12:05:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:05:49,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:49,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:49,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:05:49,123 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:49,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:49,124 INFO L85 PathProgramCache]: Analyzing trace with hash -816293185, now seen corresponding path program 1 times [2022-01-10 12:05:49,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:49,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901622839] [2022-01-10 12:05:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:49,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:49,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:49,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901622839] [2022-01-10 12:05:49,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901622839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:49,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:49,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:49,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518104261] [2022-01-10 12:05:49,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:49,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:49,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:49,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:49,217 INFO L87 Difference]: Start difference. First operand 7920 states and 14779 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:49,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:49,489 INFO L93 Difference]: Finished difference Result 19822 states and 37015 transitions. [2022-01-10 12:05:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:49,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 12:05:49,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:49,541 INFO L225 Difference]: With dead ends: 19822 [2022-01-10 12:05:49,541 INFO L226 Difference]: Without dead ends: 14879 [2022-01-10 12:05:49,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:49,552 INFO L933 BasicCegarLoop]: 4565 mSDtfsCounter, 4495 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 8041 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:49,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4495 Valid, 8041 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14879 states. [2022-01-10 12:05:49,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14879 to 14875. [2022-01-10 12:05:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14875 states, 14870 states have (on average 1.8687962340282447) internal successors, (27789), 14874 states have internal predecessors, (27789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14875 states to 14875 states and 27789 transitions. [2022-01-10 12:05:49,870 INFO L78 Accepts]: Start accepts. Automaton has 14875 states and 27789 transitions. Word has length 58 [2022-01-10 12:05:49,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:49,875 INFO L470 AbstractCegarLoop]: Abstraction has 14875 states and 27789 transitions. [2022-01-10 12:05:49,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 14875 states and 27789 transitions. [2022-01-10 12:05:49,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 12:05:49,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:49,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:49,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:05:49,878 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:49,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:49,878 INFO L85 PathProgramCache]: Analyzing trace with hash 464729203, now seen corresponding path program 1 times [2022-01-10 12:05:49,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:49,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506166168] [2022-01-10 12:05:49,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:49,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:49,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:49,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506166168] [2022-01-10 12:05:49,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506166168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:49,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:49,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:49,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544584694] [2022-01-10 12:05:49,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:49,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:49,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:49,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:49,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:49,931 INFO L87 Difference]: Start difference. First operand 14875 states and 27789 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:50,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:50,320 INFO L93 Difference]: Finished difference Result 38146 states and 71268 transitions. [2022-01-10 12:05:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:50,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 12:05:50,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:50,388 INFO L225 Difference]: With dead ends: 38146 [2022-01-10 12:05:50,389 INFO L226 Difference]: Without dead ends: 28312 [2022-01-10 12:05:50,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:50,415 INFO L933 BasicCegarLoop]: 4565 mSDtfsCounter, 4494 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 8044 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:50,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4494 Valid, 8044 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:50,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28312 states. [2022-01-10 12:05:50,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28312 to 28306. [2022-01-10 12:05:51,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28306 states, 28301 states have (on average 1.869156566905763) internal successors, (52899), 28305 states have internal predecessors, (52899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28306 states to 28306 states and 52899 transitions. [2022-01-10 12:05:51,238 INFO L78 Accepts]: Start accepts. Automaton has 28306 states and 52899 transitions. Word has length 59 [2022-01-10 12:05:51,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:51,238 INFO L470 AbstractCegarLoop]: Abstraction has 28306 states and 52899 transitions. [2022-01-10 12:05:51,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 28306 states and 52899 transitions. [2022-01-10 12:05:51,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 12:05:51,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:51,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:51,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:05:51,240 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:51,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1521717620, now seen corresponding path program 1 times [2022-01-10 12:05:51,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:51,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515216207] [2022-01-10 12:05:51,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:51,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:51,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:51,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515216207] [2022-01-10 12:05:51,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515216207] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:51,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:51,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:51,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453465295] [2022-01-10 12:05:51,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:51,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:51,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:51,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:51,309 INFO L87 Difference]: Start difference. First operand 28306 states and 52899 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:52,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:52,146 INFO L93 Difference]: Finished difference Result 73794 states and 137880 transitions. [2022-01-10 12:05:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:52,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 12:05:52,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:52,281 INFO L225 Difference]: With dead ends: 73794 [2022-01-10 12:05:52,281 INFO L226 Difference]: Without dead ends: 54210 [2022-01-10 12:05:52,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:52,314 INFO L933 BasicCegarLoop]: 4566 mSDtfsCounter, 4493 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:52,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4493 Valid, 8048 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:52,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54210 states. [2022-01-10 12:05:53,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54210 to 54202. [2022-01-10 12:05:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54202 states, 54197 states have (on average 1.868793475653634) internal successors, (101283), 54201 states have internal predecessors, (101283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:53,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54202 states to 54202 states and 101283 transitions. [2022-01-10 12:05:53,558 INFO L78 Accepts]: Start accepts. Automaton has 54202 states and 101283 transitions. Word has length 60 [2022-01-10 12:05:53,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:53,559 INFO L470 AbstractCegarLoop]: Abstraction has 54202 states and 101283 transitions. [2022-01-10 12:05:53,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:53,559 INFO L276 IsEmpty]: Start isEmpty. Operand 54202 states and 101283 transitions. [2022-01-10 12:05:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 12:05:53,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:53,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:53,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:05:53,576 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:53,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:53,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1936069562, now seen corresponding path program 1 times [2022-01-10 12:05:53,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:53,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92522029] [2022-01-10 12:05:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:53,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:53,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:53,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:53,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92522029] [2022-01-10 12:05:53,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92522029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:53,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:53,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:53,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75445778] [2022-01-10 12:05:53,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:53,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:53,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:53,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:53,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:53,631 INFO L87 Difference]: Start difference. First operand 54202 states and 101283 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:55,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:55,264 INFO L93 Difference]: Finished difference Result 110763 states and 206917 transitions. [2022-01-10 12:05:55,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:55,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-01-10 12:05:55,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:55,541 INFO L225 Difference]: With dead ends: 110763 [2022-01-10 12:05:55,541 INFO L226 Difference]: Without dead ends: 57504 [2022-01-10 12:05:55,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:55,629 INFO L933 BasicCegarLoop]: 5103 mSDtfsCounter, 3578 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3578 SdHoareTripleChecker+Valid, 7242 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 [2022-01-10 12:05:55,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3578 Valid, 7242 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 12:05:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57504 states. [2022-01-10 12:05:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57504 to 54202. [2022-01-10 12:05:56,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54202 states, 54197 states have (on average 1.8437920918132) internal successors, (99928), 54201 states have internal predecessors, (99928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54202 states to 54202 states and 99928 transitions. [2022-01-10 12:05:57,051 INFO L78 Accepts]: Start accepts. Automaton has 54202 states and 99928 transitions. Word has length 105 [2022-01-10 12:05:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:57,052 INFO L470 AbstractCegarLoop]: Abstraction has 54202 states and 99928 transitions. [2022-01-10 12:05:57,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 54202 states and 99928 transitions. [2022-01-10 12:05:57,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 12:05:57,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:57,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:05:57,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:05:57,069 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:57,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:57,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1082174830, now seen corresponding path program 1 times [2022-01-10 12:05:57,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:57,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598352809] [2022-01-10 12:05:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:57,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:57,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:05:57,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:57,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598352809] [2022-01-10 12:05:57,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598352809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:57,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:57,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:57,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245552599] [2022-01-10 12:05:57,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:57,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:57,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:57,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:57,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:57,117 INFO L87 Difference]: Start difference. First operand 54202 states and 99928 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:05:58,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:58,778 INFO L93 Difference]: Finished difference Result 112714 states and 207916 transitions. [2022-01-10 12:05:58,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:58,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 12:05:58,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:59,030 INFO L225 Difference]: With dead ends: 112714 [2022-01-10 12:05:59,031 INFO L226 Difference]: Without dead ends: 60741 [2022-01-10 12:05:59,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:59,083 INFO L933 BasicCegarLoop]: 5609 mSDtfsCounter, 3303 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3303 SdHoareTripleChecker+Valid, 8066 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:59,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3303 Valid, 8066 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:05:59,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60741 states. [2022-01-10 12:06:00,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60741 to 54202. [2022-01-10 12:06:00,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54202 states, 54197 states have (on average 1.8222964370721626) internal successors, (98763), 54201 states have internal predecessors, (98763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54202 states to 54202 states and 98763 transitions. [2022-01-10 12:06:00,167 INFO L78 Accepts]: Start accepts. Automaton has 54202 states and 98763 transitions. Word has length 110 [2022-01-10 12:06:00,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:00,170 INFO L470 AbstractCegarLoop]: Abstraction has 54202 states and 98763 transitions. [2022-01-10 12:06:00,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:00,170 INFO L276 IsEmpty]: Start isEmpty. Operand 54202 states and 98763 transitions. [2022-01-10 12:06:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:06:00,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:00,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:00,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:06:00,205 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:00,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1398926721, now seen corresponding path program 1 times [2022-01-10 12:06:00,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:00,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551533746] [2022-01-10 12:06:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:00,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:00,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:00,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551533746] [2022-01-10 12:06:00,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551533746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:00,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:00,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:00,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527878595] [2022-01-10 12:06:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:00,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:00,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:00,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:00,258 INFO L87 Difference]: Start difference. First operand 54202 states and 98763 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:01,919 INFO L93 Difference]: Finished difference Result 114338 states and 208848 transitions. [2022-01-10 12:06:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:01,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:06:01,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:02,063 INFO L225 Difference]: With dead ends: 114338 [2022-01-10 12:06:02,063 INFO L226 Difference]: Without dead ends: 64811 [2022-01-10 12:06:02,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:02,108 INFO L933 BasicCegarLoop]: 6007 mSDtfsCounter, 3150 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 8782 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:02,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3150 Valid, 8782 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 12:06:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64811 states. [2022-01-10 12:06:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64811 to 54202. [2022-01-10 12:06:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54202 states, 54197 states have (on average 1.805229071719837) internal successors, (97838), 54201 states have internal predecessors, (97838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:03,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54202 states to 54202 states and 97838 transitions. [2022-01-10 12:06:03,391 INFO L78 Accepts]: Start accepts. Automaton has 54202 states and 97838 transitions. Word has length 114 [2022-01-10 12:06:03,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:03,391 INFO L470 AbstractCegarLoop]: Abstraction has 54202 states and 97838 transitions. [2022-01-10 12:06:03,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:03,391 INFO L276 IsEmpty]: Start isEmpty. Operand 54202 states and 97838 transitions. [2022-01-10 12:06:03,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:06:03,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:03,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:03,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:06:03,408 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:03,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:03,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1263905753, now seen corresponding path program 1 times [2022-01-10 12:06:03,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:03,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662923310] [2022-01-10 12:06:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:03,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:03,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:03,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:03,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662923310] [2022-01-10 12:06:03,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662923310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:03,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:03,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:03,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613710112] [2022-01-10 12:06:03,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:03,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:03,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:03,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:03,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:03,468 INFO L87 Difference]: Start difference. First operand 54202 states and 97838 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:05,034 INFO L93 Difference]: Finished difference Result 115782 states and 210160 transitions. [2022-01-10 12:06:05,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:05,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-10 12:06:05,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:05,172 INFO L225 Difference]: With dead ends: 115782 [2022-01-10 12:06:05,172 INFO L226 Difference]: Without dead ends: 69566 [2022-01-10 12:06:05,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:05,209 INFO L933 BasicCegarLoop]: 6395 mSDtfsCounter, 3017 mSDsluCounter, 3093 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 9488 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 [2022-01-10 12:06:05,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3017 Valid, 9488 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:06:05,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69566 states. [2022-01-10 12:06:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69566 to 54202. [2022-01-10 12:06:06,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54202 states, 54197 states have (on average 1.7935125560455376) internal successors, (97203), 54201 states have internal predecessors, (97203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:06,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54202 states to 54202 states and 97203 transitions. [2022-01-10 12:06:06,410 INFO L78 Accepts]: Start accepts. Automaton has 54202 states and 97203 transitions. Word has length 117 [2022-01-10 12:06:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:06,411 INFO L470 AbstractCegarLoop]: Abstraction has 54202 states and 97203 transitions. [2022-01-10 12:06:06,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 54202 states and 97203 transitions. [2022-01-10 12:06:06,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:06:06,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:06,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:06,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:06:06,434 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:06,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:06,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1297725289, now seen corresponding path program 1 times [2022-01-10 12:06:06,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:06,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918682656] [2022-01-10 12:06:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:06,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:06,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:06,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918682656] [2022-01-10 12:06:06,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918682656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:06,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:06,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:06,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431222035] [2022-01-10 12:06:06,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:06,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:06,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:06,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:06,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:06,655 INFO L87 Difference]: Start difference. First operand 54202 states and 97203 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:08,174 INFO L93 Difference]: Finished difference Result 117190 states and 212181 transitions. [2022-01-10 12:06:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:08,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-01-10 12:06:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:08,289 INFO L225 Difference]: With dead ends: 117190 [2022-01-10 12:06:08,290 INFO L226 Difference]: Without dead ends: 74629 [2022-01-10 12:06:08,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:08,328 INFO L933 BasicCegarLoop]: 6773 mSDtfsCounter, 2904 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 10184 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 [2022-01-10 12:06:08,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2904 Valid, 10184 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:06:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74629 states. [2022-01-10 12:06:09,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74629 to 54202. [2022-01-10 12:06:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54202 states, 54197 states have (on average 1.7876081701939222) internal successors, (96883), 54201 states have internal predecessors, (96883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54202 states to 54202 states and 96883 transitions. [2022-01-10 12:06:09,653 INFO L78 Accepts]: Start accepts. Automaton has 54202 states and 96883 transitions. Word has length 119 [2022-01-10 12:06:09,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:09,653 INFO L470 AbstractCegarLoop]: Abstraction has 54202 states and 96883 transitions. [2022-01-10 12:06:09,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:09,654 INFO L276 IsEmpty]: Start isEmpty. Operand 54202 states and 96883 transitions. [2022-01-10 12:06:09,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:06:09,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:09,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:09,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:06:09,672 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:09,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:09,672 INFO L85 PathProgramCache]: Analyzing trace with hash -193050354, now seen corresponding path program 1 times [2022-01-10 12:06:09,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:09,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647459069] [2022-01-10 12:06:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:09,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:09,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:09,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647459069] [2022-01-10 12:06:09,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647459069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:09,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:09,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:06:09,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993030426] [2022-01-10 12:06:09,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:09,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:06:09,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:09,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:06:09,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:06:09,753 INFO L87 Difference]: Start difference. First operand 54202 states and 96883 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:11,853 INFO L93 Difference]: Finished difference Result 162506 states and 290527 transitions. [2022-01-10 12:06:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:06:11,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-01-10 12:06:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:12,074 INFO L225 Difference]: With dead ends: 162506 [2022-01-10 12:06:12,077 INFO L226 Difference]: Without dead ends: 108333 [2022-01-10 12:06:12,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:06:12,130 INFO L933 BasicCegarLoop]: 8741 mSDtfsCounter, 13114 mSDsluCounter, 4390 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13114 SdHoareTripleChecker+Valid, 13131 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:12,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13114 Valid, 13131 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108333 states. [2022-01-10 12:06:13,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108333 to 54181. [2022-01-10 12:06:13,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54181 states, 54176 states have (on average 1.787784258712345) internal successors, (96855), 54180 states have internal predecessors, (96855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54181 states to 54181 states and 96855 transitions. [2022-01-10 12:06:13,912 INFO L78 Accepts]: Start accepts. Automaton has 54181 states and 96855 transitions. Word has length 119 [2022-01-10 12:06:13,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:13,912 INFO L470 AbstractCegarLoop]: Abstraction has 54181 states and 96855 transitions. [2022-01-10 12:06:13,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 54181 states and 96855 transitions. [2022-01-10 12:06:14,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 12:06:14,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:14,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:14,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:06:14,064 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:14,065 INFO L85 PathProgramCache]: Analyzing trace with hash 386793511, now seen corresponding path program 1 times [2022-01-10 12:06:14,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:14,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615570744] [2022-01-10 12:06:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:14,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:14,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:14,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615570744] [2022-01-10 12:06:14,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615570744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:14,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:14,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:06:14,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537157951] [2022-01-10 12:06:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:14,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:06:14,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:14,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:06:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:06:14,154 INFO L87 Difference]: Start difference. First operand 54181 states and 96855 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:17,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:17,399 INFO L93 Difference]: Finished difference Result 216652 states and 387339 transitions. [2022-01-10 12:06:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:06:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 12:06:17,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:17,922 INFO L225 Difference]: With dead ends: 216652 [2022-01-10 12:06:17,922 INFO L226 Difference]: Without dead ends: 162494 [2022-01-10 12:06:18,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:06:18,008 INFO L933 BasicCegarLoop]: 8743 mSDtfsCounter, 13098 mSDsluCounter, 13119 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13098 SdHoareTripleChecker+Valid, 21862 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:18,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13098 Valid, 21862 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162494 states. [2022-01-10 12:06:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162494 to 54183. [2022-01-10 12:06:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54183 states, 54178 states have (on average 1.7877551773782716) internal successors, (96857), 54182 states have internal predecessors, (96857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:20,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54183 states to 54183 states and 96857 transitions. [2022-01-10 12:06:20,184 INFO L78 Accepts]: Start accepts. Automaton has 54183 states and 96857 transitions. Word has length 121 [2022-01-10 12:06:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:20,184 INFO L470 AbstractCegarLoop]: Abstraction has 54183 states and 96857 transitions. [2022-01-10 12:06:20,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:20,184 INFO L276 IsEmpty]: Start isEmpty. Operand 54183 states and 96857 transitions. [2022-01-10 12:06:20,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 12:06:20,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:20,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:20,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:06:20,202 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash -599789178, now seen corresponding path program 1 times [2022-01-10 12:06:20,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:20,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030247776] [2022-01-10 12:06:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:20,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:20,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:20,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:20,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030247776] [2022-01-10 12:06:20,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030247776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:20,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:20,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:06:20,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010224701] [2022-01-10 12:06:20,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:20,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:06:20,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:20,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:06:20,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:06:20,287 INFO L87 Difference]: Start difference. First operand 54183 states and 96857 transitions. Second operand has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:21,900 INFO L93 Difference]: Finished difference Result 108342 states and 193687 transitions. [2022-01-10 12:06:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:21,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 12:06:21,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:22,003 INFO L225 Difference]: With dead ends: 108342 [2022-01-10 12:06:22,004 INFO L226 Difference]: Without dead ends: 54175 [2022-01-10 12:06:22,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:06:22,035 INFO L933 BasicCegarLoop]: 4375 mSDtfsCounter, 13119 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13119 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:22,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13119 Valid, 4382 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:22,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54175 states. [2022-01-10 12:06:23,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54175 to 54175. [2022-01-10 12:06:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54175 states, 54170 states have (on average 1.7878161343917298) internal successors, (96846), 54174 states have internal predecessors, (96846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:23,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54175 states to 54175 states and 96846 transitions. [2022-01-10 12:06:23,633 INFO L78 Accepts]: Start accepts. Automaton has 54175 states and 96846 transitions. Word has length 121 [2022-01-10 12:06:23,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:23,633 INFO L470 AbstractCegarLoop]: Abstraction has 54175 states and 96846 transitions. [2022-01-10 12:06:23,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:23,633 INFO L276 IsEmpty]: Start isEmpty. Operand 54175 states and 96846 transitions. [2022-01-10 12:06:23,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 12:06:23,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:23,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:23,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:06:23,650 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash 129836908, now seen corresponding path program 1 times [2022-01-10 12:06:23,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:23,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757801854] [2022-01-10 12:06:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:23,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:23,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:23,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:23,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757801854] [2022-01-10 12:06:23,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757801854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:23,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:23,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:06:23,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174266124] [2022-01-10 12:06:23,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:23,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:06:23,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:23,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:06:23,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:06:23,707 INFO L87 Difference]: Start difference. First operand 54175 states and 96846 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:25,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:25,202 INFO L93 Difference]: Finished difference Result 108321 states and 193657 transitions. [2022-01-10 12:06:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:06:25,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-10 12:06:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:25,302 INFO L225 Difference]: With dead ends: 108321 [2022-01-10 12:06:25,303 INFO L226 Difference]: Without dead ends: 54175 [2022-01-10 12:06:25,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:06:25,341 INFO L933 BasicCegarLoop]: 4368 mSDtfsCounter, 8720 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8720 SdHoareTripleChecker+Valid, 4418 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:25,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8720 Valid, 4418 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:25,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54175 states. [2022-01-10 12:06:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54175 to 54175. [2022-01-10 12:06:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54175 states, 54170 states have (on average 1.787797673989293) internal successors, (96845), 54174 states have internal predecessors, (96845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:27,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54175 states to 54175 states and 96845 transitions. [2022-01-10 12:06:27,288 INFO L78 Accepts]: Start accepts. Automaton has 54175 states and 96845 transitions. Word has length 122 [2022-01-10 12:06:27,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:27,288 INFO L470 AbstractCegarLoop]: Abstraction has 54175 states and 96845 transitions. [2022-01-10 12:06:27,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:27,288 INFO L276 IsEmpty]: Start isEmpty. Operand 54175 states and 96845 transitions. [2022-01-10 12:06:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 12:06:27,303 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:27,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:27,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:06:27,304 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:27,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:27,304 INFO L85 PathProgramCache]: Analyzing trace with hash 810481217, now seen corresponding path program 1 times [2022-01-10 12:06:27,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:27,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833609171] [2022-01-10 12:06:27,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:27,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:27,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:27,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833609171] [2022-01-10 12:06:27,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833609171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:27,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:27,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:06:27,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041731043] [2022-01-10 12:06:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:27,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:06:27,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:27,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:06:27,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:06:27,360 INFO L87 Difference]: Start difference. First operand 54175 states and 96845 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:32,930 INFO L93 Difference]: Finished difference Result 218860 states and 390066 transitions. [2022-01-10 12:06:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:06:32,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-01-10 12:06:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:33,294 INFO L225 Difference]: With dead ends: 218860 [2022-01-10 12:06:33,294 INFO L226 Difference]: Without dead ends: 164731 [2022-01-10 12:06:33,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:06:33,357 INFO L933 BasicCegarLoop]: 8485 mSDtfsCounter, 17052 mSDsluCounter, 12752 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17052 SdHoareTripleChecker+Valid, 21237 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:33,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17052 Valid, 21237 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 12:06:33,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164731 states. [2022-01-10 12:06:36,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164731 to 54241. [2022-01-10 12:06:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54241 states, 54236 states have (on average 1.7868389999262482) internal successors, (96911), 54240 states have internal predecessors, (96911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:36,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54241 states to 54241 states and 96911 transitions. [2022-01-10 12:06:36,405 INFO L78 Accepts]: Start accepts. Automaton has 54241 states and 96911 transitions. Word has length 123 [2022-01-10 12:06:36,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:36,405 INFO L470 AbstractCegarLoop]: Abstraction has 54241 states and 96911 transitions. [2022-01-10 12:06:36,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 54241 states and 96911 transitions. [2022-01-10 12:06:36,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 12:06:36,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:36,432 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] [2022-01-10 12:06:36,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:06:36,432 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:36,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash -947098835, now seen corresponding path program 1 times [2022-01-10 12:06:36,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:36,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192672196] [2022-01-10 12:06:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:36,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:06:36,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:36,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192672196] [2022-01-10 12:06:36,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192672196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:36,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:36,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:36,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312107802] [2022-01-10 12:06:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:36,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:06:36,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:06:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:06:36,523 INFO L87 Difference]: Start difference. First operand 54241 states and 96911 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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)