java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-09 16:48:12,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 16:48:12,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 16:48:12,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 16:48:12,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 16:48:12,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 16:48:12,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 16:48:12,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 16:48:12,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 16:48:12,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 16:48:12,675 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 16:48:12,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 16:48:12,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 16:48:12,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 16:48:12,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 16:48:12,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 16:48:12,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 16:48:12,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 16:48:12,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 16:48:12,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 16:48:12,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 16:48:12,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 16:48:12,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 16:48:12,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 16:48:12,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-09 16:48:12,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 16:48:12,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 16:48:12,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 16:48:12,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 16:48:12,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 16:48:12,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 16:48:12,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 16:48:12,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 16:48:12,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 16:48:12,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 16:48:12,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 16:48:12,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-09 16:48:12,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-09 16:48:12,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-09 16:48:12,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-09 16:48:12,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-09 16:48:12,749 INFO L138 SettingsManager]: * Use SBE=true [2019-08-09 16:48:12,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-09 16:48:12,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-09 16:48:12,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-09 16:48:12,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-09 16:48:12,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-09 16:48:12,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-09 16:48:12,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-09 16:48:12,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-09 16:48:12,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-09 16:48:12,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-09 16:48:12,752 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-09 16:48:12,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-09 16:48:12,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-09 16:48:12,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-09 16:48:12,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-09 16:48:12,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-09 16:48:12,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-09 16:48:12,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-09 16:48:12,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-09 16:48:12,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-09 16:48:12,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-09 16:48:12,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-09 16:48:12,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-09 16:48:12,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-09 16:48:12,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 16:48:12,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 16:48:12,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 16:48:12,838 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-09 16:48:12,838 INFO L275 PluginConnector]: CDTParser initialized [2019-08-09 16:48:12,839 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20.c [2019-08-09 16:48:12,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31be9a249/6deb890b4a0c47dcbad9f69a639710c8/FLAG20dcb4d24 [2019-08-09 16:48:13,584 INFO L306 CDTParser]: Found 1 translation units. [2019-08-09 16:48:13,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label20.c [2019-08-09 16:48:13,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31be9a249/6deb890b4a0c47dcbad9f69a639710c8/FLAG20dcb4d24 [2019-08-09 16:48:13,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31be9a249/6deb890b4a0c47dcbad9f69a639710c8 [2019-08-09 16:48:13,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 16:48:13,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-09 16:48:13,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-09 16:48:13,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-09 16:48:13,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-09 16:48:13,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:48:13" (1/1) ... [2019-08-09 16:48:13,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67446810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:13, skipping insertion in model container [2019-08-09 16:48:13,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:48:13" (1/1) ... [2019-08-09 16:48:13,840 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-09 16:48:13,898 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-09 16:48:14,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:48:14,588 INFO L188 MainTranslator]: Completed pre-run [2019-08-09 16:48:14,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:48:14,702 INFO L192 MainTranslator]: Completed translation [2019-08-09 16:48:14,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14 WrapperNode [2019-08-09 16:48:14,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-09 16:48:14,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 16:48:14,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 16:48:14,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 16:48:14,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (1/1) ... [2019-08-09 16:48:14,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (1/1) ... [2019-08-09 16:48:14,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (1/1) ... [2019-08-09 16:48:14,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (1/1) ... [2019-08-09 16:48:14,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (1/1) ... [2019-08-09 16:48:14,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (1/1) ... [2019-08-09 16:48:14,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (1/1) ... [2019-08-09 16:48:14,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 16:48:14,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 16:48:14,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 16:48:14,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 16:48:14,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:48:14" (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 [2019-08-09 16:48:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-09 16:48:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 16:48:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-09 16:48:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 16:48:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-09 16:48:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-09 16:48:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-09 16:48:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-09 16:48:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 16:48:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-09 16:48:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 16:48:16,077 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 16:48:16,077 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-09 16:48:16,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:48:16 BoogieIcfgContainer [2019-08-09 16:48:16,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 16:48:16,080 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 16:48:16,080 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 16:48:16,080 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 16:48:16,082 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:48:16" (1/1) ... [2019-08-09 16:48:17,732 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 16:48:17,740 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 16:48:17,744 INFO L168 Benchmark]: Toolchain (without parser) took 3921.57 ms. Allocated memory was 141.6 MB in the beginning and 260.6 MB in the end (delta: 119.0 MB). Free memory was 86.7 MB in the beginning and 91.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 120.8 MB. Max. memory is 7.1 GB. [2019-08-09 16:48:17,745 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 141.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-09 16:48:17,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 880.54 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 86.5 MB in the beginning and 168.7 MB in the end (delta: -82.2 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2019-08-09 16:48:17,749 INFO L168 Benchmark]: Boogie Preprocessor took 101.05 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 163.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-09 16:48:17,751 INFO L168 Benchmark]: RCFGBuilder took 1274.66 ms. Allocated memory was 203.9 MB in the beginning and 232.3 MB in the end (delta: 28.3 MB). Free memory was 163.7 MB in the beginning and 181.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2019-08-09 16:48:17,752 INFO L168 Benchmark]: Symbolic Interpretation took 1661.36 ms. Allocated memory was 232.3 MB in the beginning and 260.6 MB in the end (delta: 28.3 MB). Free memory was 181.4 MB in the beginning and 91.9 MB in the end (delta: 89.5 MB). Peak memory consumption was 124.8 MB. Max. memory is 7.1 GB. [2019-08-09 16:48:17,764 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 392]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable. Predicate is 26076#(and (= 1 ~a7~0) (not (= ~a20~0 1)) (= ~a16~0 4) (= ~a12~0 8) (= ~a21~0 1) (not (= ~a17~0 1)) (= 14 ~a8~0) (or (and (or (not (= ~a20~0 1)) (not (= 1 ~a7~0)) (= ~a21~0 1) (not (= ~a17~0 1)) (not (= 13 ~a8~0)) (not (= ~a16~0 4))) (or (not (= ~a21~0 1)) (= 1 ~a7~0) (not (= ~a16~0 6)) (not (= 15 ~a8~0)) (= ~a17~0 1) (= ~a20~0 1))) (not (= 5 calculate_output_~input)) (not (= ~a12~0 8)))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 141.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 880.54 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 86.5 MB in the beginning and 168.7 MB in the end (delta: -82.2 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.05 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 163.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1274.66 ms. Allocated memory was 203.9 MB in the beginning and 232.3 MB in the end (delta: 28.3 MB). Free memory was 163.7 MB in the beginning and 181.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1661.36 ms. Allocated memory was 232.3 MB in the beginning and 260.6 MB in the end (delta: 28.3 MB). Free memory was 181.4 MB in the beginning and 91.9 MB in the end (delta: 89.5 MB). Peak memory consumption was 124.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...