/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2018/Problem18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:37:41,240 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-27 19:37:41,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:37:41,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:37:41,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:37:41,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:37:41,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:37:41,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:37:41,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:37:41,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:37:41,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:37:41,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:37:41,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:37:41,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:37:41,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:37:41,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:37:41,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:37:41,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:37:41,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:37:41,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:37:41,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:37:41,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:37:41,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-27 19:37:41,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:37:41,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:37:41,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:37:41,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:37:41,448 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:37:41,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:37:41,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:37:41,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:37:41,451 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:37:41,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:37:41,452 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:37:41,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:37:41,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:37:41,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:37:41,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:37:41,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:37:41,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:37:41,453 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:37:41,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:37:41,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:37:41,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:37:41,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:37:41,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:37:41,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:37:41,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:37:41,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:37:41,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:37:41,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:37:41,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:37:41,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:37:41,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:37:41,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:37:41,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:37:41,457 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:37:41,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:37:41,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:37:41,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:37:41,967 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:37:41,968 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:37:41,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2018/Problem18.c [2020-10-27 19:37:42,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc54c2853/24c753df9748401891a2e4219fc1febf/FLAGfea256512 [2020-10-27 19:37:57,200 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:37:57,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2018/Problem18.c [2020-10-27 19:37:58,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc54c2853/24c753df9748401891a2e4219fc1febf/FLAGfea256512 [2020-10-27 19:37:59,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc54c2853/24c753df9748401891a2e4219fc1febf [2020-10-27 19:37:59,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:37:59,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:37:59,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:37:59,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:37:59,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:37:59,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:37:59" (1/1) ... [2020-10-27 19:37:59,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e57c8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:37:59, skipping insertion in model container [2020-10-27 19:37:59,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:37:59" (1/1) ... [2020-10-27 19:37:59,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:38:04,903 INFO L178 MainTranslator]: Built tables and reachable declarations