/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/rekcba_aso.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 07:47:47,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 07:47:47,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 07:47:47,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 07:47:47,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 07:47:47,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 07:47:47,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 07:47:47,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 07:47:47,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 07:47:47,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 07:47:47,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 07:47:47,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 07:47:47,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 07:47:47,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 07:47:47,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 07:47:47,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 07:47:47,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 07:47:47,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 07:47:47,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 07:47:47,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 07:47:47,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 07:47:47,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 07:47:47,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 07:47:47,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 07:47:47,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 07:47:47,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 07:47:47,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 07:47:47,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 07:47:47,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 07:47:47,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 07:47:47,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 07:47:47,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 07:47:47,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 07:47:47,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 07:47:47,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 07:47:47,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 07:47:47,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 07:47:47,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 07:47:47,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 07:47:47,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 07:47:47,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 07:47:47,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 07:47:47,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 07:47:47,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 07:47:47,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 07:47:47,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 07:47:47,912 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 07:47:47,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 07:47:47,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 07:47:47,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 07:47:47,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 07:47:47,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 07:47:47,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 07:47:47,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 07:47:47,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 07:47:47,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 07:47:47,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 07:47:47,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 07:47:47,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 07:47:47,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 07:47:47,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 07:47:47,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 07:47:47,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 07:47:47,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 07:47:47,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 07:47:47,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 07:47:47,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 07:47:47,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 07:47:48,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 07:47:48,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 07:47:48,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 07:47:48,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 07:47:48,315 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 07:47:48,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2020-12-22 07:47:48,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396843c46/d0ad5529118b438f91e4b67c794b65d0/FLAG726fcd648 [2020-12-22 07:47:49,620 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 07:47:49,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2020-12-22 07:47:49,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396843c46/d0ad5529118b438f91e4b67c794b65d0/FLAG726fcd648 [2020-12-22 07:47:49,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396843c46/d0ad5529118b438f91e4b67c794b65d0 [2020-12-22 07:47:49,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 07:47:49,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 07:47:49,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 07:47:49,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 07:47:49,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 07:47:49,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:47:49" (1/1) ... [2020-12-22 07:47:49,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec7f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:49, skipping insertion in model container [2020-12-22 07:47:49,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:47:49" (1/1) ... [2020-12-22 07:47:49,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 07:47:50,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 07:47:50,551 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/rekcba_aso.2.M4-1.c[2836,2849] [2020-12-22 07:47:52,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:47:52,128 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 07:47:52,164 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/rekcba_aso.2.M4-1.c[2836,2849] [2020-12-22 07:47:53,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:47:53,419 INFO L208 MainTranslator]: Completed translation [2020-12-22 07:47:53,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53 WrapperNode [2020-12-22 07:47:53,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 07:47:53,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 07:47:53,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 07:47:53,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 07:47:53,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:47:54,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:21,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 07:48:21,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 07:48:21,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 07:48:21,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 07:48:21,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:21,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:22,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:22,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:26,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:27,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:28,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (1/1) ... [2020-12-22 07:48:30,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 07:48:30,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 07:48:30,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 07:48:30,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 07:48:30,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:47:53" (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 07:48:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 07:48:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 07:48:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 07:48:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 07:48:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 07:48:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 07:48:30,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start