/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.4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 07:58:53,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 07:58:53,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 07:58:53,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 07:58:53,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 07:58:53,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 07:58:53,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 07:58:53,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 07:58:53,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 07:58:53,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 07:58:53,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 07:58:53,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 07:58:53,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 07:58:53,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 07:58:53,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 07:58:53,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 07:58:53,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 07:58:53,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 07:58:53,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 07:58:53,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 07:58:53,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 07:58:53,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 07:58:53,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 07:58:53,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 07:58:53,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 07:58:53,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 07:58:53,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 07:58:53,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 07:58:53,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 07:58:53,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 07:58:53,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 07:58:53,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 07:58:53,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 07:58:53,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 07:58:53,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 07:58:53,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 07:58:53,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 07:58:53,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 07:58:53,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 07:58:53,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 07:58:53,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 07:58:53,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 07:58:53,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 07:58:53,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 07:58:53,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 07:58:53,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 07:58:53,653 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 07:58:53,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 07:58:53,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 07:58:53,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 07:58:53,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 07:58:53,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 07:58:53,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 07:58:53,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 07:58:53,656 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 07:58:53,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 07:58:53,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 07:58:53,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 07:58:53,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 07:58:53,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 07:58:53,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 07:58:53,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 07:58:53,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 07:58:53,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 07:58:53,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 07:58:53,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 07:58:53,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 07:58:53,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 07:58:54,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 07:58:54,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 07:58:54,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 07:58:54,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 07:58:54,166 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 07:58:54,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2020-12-22 07:58:54,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3b757ae/c20e5387de254754b904a43ba8388f15/FLAG4557519a1 [2020-12-22 07:58:55,337 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 07:58:55,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2020-12-22 07:58:55,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3b757ae/c20e5387de254754b904a43ba8388f15/FLAG4557519a1 [2020-12-22 07:58:55,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3b757ae/c20e5387de254754b904a43ba8388f15 [2020-12-22 07:58:55,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 07:58:55,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 07:58:55,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 07:58:55,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 07:58:55,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 07:58:55,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:58:55" (1/1) ... [2020-12-22 07:58:55,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c19eb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:55, skipping insertion in model container [2020-12-22 07:58:55,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:58:55" (1/1) ... [2020-12-22 07:58:55,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 07:58:55,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 07:58:56,297 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.4.c[1868,1881] [2020-12-22 07:58:57,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:58:57,105 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 07:58:57,127 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.4.c[1868,1881] [2020-12-22 07:58:57,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:58:57,556 INFO L208 MainTranslator]: Completed translation [2020-12-22 07:58:57,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57 WrapperNode [2020-12-22 07:58:57,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 07:58:57,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 07:58:57,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 07:58:57,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 07:58:57,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:58:57,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:21,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 07:59:21,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 07:59:21,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 07:59:21,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 07:59:21,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:21,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:26,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:26,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:33,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:37,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:40,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (1/1) ... [2020-12-22 07:59:43,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 07:59:43,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 07:59:43,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 07:59:43,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 07:59:43,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:58:57" (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 07:59:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 07:59:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 07:59:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 07:59:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 07:59:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 07:59:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start