/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 07:57:29,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 07:57:29,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 07:57:29,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 07:57:29,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 07:57:29,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 07:57:29,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 07:57:29,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 07:57:29,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 07:57:29,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 07:57:29,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 07:57:29,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 07:57:29,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 07:57:29,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 07:57:29,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 07:57:29,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 07:57:29,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 07:57:29,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 07:57:29,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 07:57:29,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 07:57:29,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 07:57:29,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 07:57:29,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 07:57:29,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 07:57:29,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 07:57:29,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 07:57:29,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 07:57:29,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 07:57:29,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 07:57:29,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 07:57:29,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 07:57:29,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 07:57:29,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 07:57:29,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 07:57:29,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 07:57:29,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 07:57:29,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 07:57:29,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 07:57:29,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 07:57:29,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 07:57:29,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 07:57:29,976 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 07:57:29,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 07:57:29,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 07:57:29,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 07:57:29,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 07:57:29,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 07:57:29,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 07:57:29,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 07:57:29,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 07:57:29,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 07:57:29,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 07:57:29,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 07:57:29,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 07:57:29,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 07:57:29,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 07:57:29,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 07:57:29,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 07:57:29,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 07:57:29,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 07:57:29,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 07:57:29,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 07:57:29,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 07:57:30,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 07:57:30,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 07:57:30,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 07:57:30,514 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 07:57:30,515 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 07:57:30,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2020-12-22 07:57:30,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ce3054d/783ffd5f13f0487cbb090525cb4d7832/FLAGeeb104b38 [2020-12-22 07:57:31,498 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 07:57:31,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2020-12-22 07:57:31,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ce3054d/783ffd5f13f0487cbb090525cb4d7832/FLAGeeb104b38 [2020-12-22 07:57:31,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ce3054d/783ffd5f13f0487cbb090525cb4d7832 [2020-12-22 07:57:31,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 07:57:31,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 07:57:31,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 07:57:31,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 07:57:31,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 07:57:31,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:57:31" (1/1) ... [2020-12-22 07:57:31,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0edbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:31, skipping insertion in model container [2020-12-22 07:57:31,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:57:31" (1/1) ... [2020-12-22 07:57:31,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 07:57:31,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 07:57:31,936 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2020-12-22 07:57:32,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:57:32,890 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 07:57:32,910 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2020-12-22 07:57:33,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:57:33,487 INFO L208 MainTranslator]: Completed translation [2020-12-22 07:57:33,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33 WrapperNode [2020-12-22 07:57:33,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 07:57:33,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 07:57:33,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 07:57:33,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 07:57:33,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:33,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:43,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 07:57:43,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 07:57:43,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 07:57:43,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 07:57:43,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:43,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:46,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:46,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:50,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:52,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:54,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... [2020-12-22 07:57:55,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 07:57:55,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 07:57:55,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 07:57:55,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 07:57:55,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:57:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 07:57:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 07:57:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 07:57:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 07:57:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 07:57:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 07:57:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start