/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:17:40,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:17:40,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:17:40,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:17:40,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:17:40,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:17:40,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:17:40,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:17:40,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:17:40,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:17:40,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:17:40,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:17:40,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:17:40,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:17:40,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:17:40,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:17:40,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:17:40,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:17:40,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:17:40,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:17:40,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:17:40,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:17:40,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:17:40,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:17:40,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 20:17:40,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:17:40,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:17:40,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:17:40,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:17:40,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:17:40,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:17:40,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:17:40,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:17:40,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:17:40,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:17:40,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:17:40,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:17:40,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:17:40,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:17:40,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:17:40,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:17:40,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:17:40,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:17:40,890 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:17:40,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:17:40,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:17:40,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:17:40,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:17:40,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:17:40,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:17:40,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:17:40,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:17:40,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:17:40,894 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:17:40,894 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:17:41,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:17:41,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:17:41,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:17:41,111 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:17:41,112 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:17:41,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008.i [2022-01-10 20:17:41,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639dca7a4/0c9c773b62f147799ea85737a2620816/FLAGb0d4d6fa5 [2022-01-10 20:17:41,532 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:17:41,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i [2022-01-10 20:17:41,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639dca7a4/0c9c773b62f147799ea85737a2620816/FLAGb0d4d6fa5 [2022-01-10 20:17:41,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639dca7a4/0c9c773b62f147799ea85737a2620816 [2022-01-10 20:17:41,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:17:41,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:17:41,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:17:41,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:17:41,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:17:41,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e0bc3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41, skipping insertion in model container [2022-01-10 20:17:41,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:17:41,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:17:41,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i[895,908] [2022-01-10 20:17:41,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:17:41,688 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:17:41,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i[895,908] [2022-01-10 20:17:41,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:17:41,714 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:17:41,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41 WrapperNode [2022-01-10 20:17:41,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:17:41,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:17:41,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:17:41,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:17:41,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,742 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-01-10 20:17:41,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:17:41,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:17:41,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:17:41,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:17:41,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:17:41,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:17:41,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:17:41,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:17:41,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:17:41,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:17:41,788 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 20:17:41,792 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 20:17:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:17:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:17:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:17:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:17:41,854 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:17:41,855 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:17:41,912 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:17:41,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:17:41,915 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:17:41,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:17:41 BoogieIcfgContainer [2022-01-10 20:17:41,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:17:41,917 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:17:41,917 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:17:41,918 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:17:41,919 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:17:41" (1/1) ... [2022-01-10 20:17:41,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:17:41 BasicIcfg [2022-01-10 20:17:41,953 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:17:41,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:17:41,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:17:41,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:17:41,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:17:41" (1/4) ... [2022-01-10 20:17:41,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5046d946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:17:41, skipping insertion in model container [2022-01-10 20:17:41,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:17:41" (2/4) ... [2022-01-10 20:17:41,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5046d946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:17:41, skipping insertion in model container [2022-01-10 20:17:41,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:17:41" (3/4) ... [2022-01-10 20:17:41,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5046d946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:17:41, skipping insertion in model container [2022-01-10 20:17:41,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:17:41" (4/4) ... [2022-01-10 20:17:41,957 INFO L111 eAbstractionObserver]: Analyzing ICFG hhk2008.iTransformedIcfg [2022-01-10 20:17:41,960 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:17:41,960 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 20:17:41,985 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:17:41,989 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 20:17:41,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 20:17:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 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 20:17:41,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 20:17:41,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:17:41,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:17:42,000 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:17:42,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:17:42,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1806556438, now seen corresponding path program 1 times [2022-01-10 20:17:42,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:17:42,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96706425] [2022-01-10 20:17:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:17:42,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:17:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:17:42,136 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 20:17:42,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:17:42,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96706425] [2022-01-10 20:17:42,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96706425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:17:42,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:17:42,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:17:42,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906870181] [2022-01-10 20:17:42,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:17:42,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:17:42,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:17:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:17:42,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:17:42,167 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 20:17:42,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:17:42,179 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-01-10 20:17:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:17:42,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-01-10 20:17:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:17:42,187 INFO L225 Difference]: With dead ends: 21 [2022-01-10 20:17:42,187 INFO L226 Difference]: Without dead ends: 9 [2022-01-10 20:17:42,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:17:42,192 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:17:42,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:17:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-10 20:17:42,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-10 20:17:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 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 20:17:42,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-10 20:17:42,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-01-10 20:17:42,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:17:42,223 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-10 20:17:42,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 20:17:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-10 20:17:42,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 20:17:42,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:17:42,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:17:42,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:17:42,225 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:17:42,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:17:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1806526647, now seen corresponding path program 1 times [2022-01-10 20:17:42,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:17:42,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276184435] [2022-01-10 20:17:42,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:17:42,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:17:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:17:42,617 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 20:17:42,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:17:42,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276184435] [2022-01-10 20:17:42,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276184435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:17:42,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:17:42,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 20:17:42,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861445471] [2022-01-10 20:17:42,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:17:42,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 20:17:42,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:17:42,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 20:17:42,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 20:17:42,625 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 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 20:17:42,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:17:42,754 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-01-10 20:17:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:17:42,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-01-10 20:17:42,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:17:42,755 INFO L225 Difference]: With dead ends: 14 [2022-01-10 20:17:42,755 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 20:17:42,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 20:17:42,760 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:17:42,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 13 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:17:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 20:17:42,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 20:17:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 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 20:17:42,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-01-10 20:17:42,766 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2022-01-10 20:17:42,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:17:42,767 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-01-10 20:17:42,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 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 20:17:42,768 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-01-10 20:17:42,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 20:17:42,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:17:42,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:17:42,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:17:42,771 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:17:42,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:17:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash -166888239, now seen corresponding path program 1 times [2022-01-10 20:17:42,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:17:42,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918261448] [2022-01-10 20:17:42,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:17:42,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:17:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:17:43,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:17:43,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:17:43,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918261448] [2022-01-10 20:17:43,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918261448] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 20:17:43,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9100083] [2022-01-10 20:17:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:17:43,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:17:43,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:17:43,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:17:43,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 20:17:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:17:43,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-10 20:17:43,127 INFO L286 TraceCheckSpWp]: Computing forward predicates...