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/Problem04_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 11:05:00,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 11:05:00,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 11:05:00,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 11:05:00,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 11:05:00,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 11:05:00,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 11:05:00,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 11:05:00,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 11:05:00,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 11:05:00,846 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 11:05:00,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 11:05:00,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 11:05:00,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 11:05:00,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 11:05:00,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 11:05:00,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 11:05:00,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 11:05:00,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 11:05:00,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 11:05:00,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 11:05:00,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 11:05:00,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 11:05:00,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 11:05:00,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-14 11:05:00,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-14 11:05:00,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-14 11:05:00,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-14 11:05:00,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-14 11:05:00,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-14 11:05:00,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 11:05:00,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 11:05:00,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 11:05:00,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 11:05:00,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 11:05:00,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 11:05:00,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 11:05:00,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 11:05:00,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 11:05:00,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 11:05:00,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 11:05:00,880 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 [2019-08-14 11:05:00,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 11:05:00,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 11:05:00,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 11:05:00,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 11:05:00,904 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 11:05:00,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 11:05:00,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 11:05:00,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 11:05:00,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 11:05:00,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 11:05:00,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 11:05:00,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 11:05:00,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 11:05:00,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 11:05:00,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 11:05:00,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 11:05:00,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 11:05:00,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 11:05:00,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 11:05:00,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 11:05:00,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 11:05:00,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 11:05:00,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 11:05:00,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 11:05:00,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 11:05:00,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 11:05:00,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 11:05:00,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 11:05:00,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 11:05:00,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 11:05:00,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 11:05:00,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 11:05:00,961 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 11:05:00,962 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 11:05:00,962 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label08.c [2019-08-14 11:05:01,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1904109cb/071218a0b89548afb291700b6c63bb6c/FLAGf848e35f6 [2019-08-14 11:05:01,796 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 11:05:01,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label08.c [2019-08-14 11:05:01,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1904109cb/071218a0b89548afb291700b6c63bb6c/FLAGf848e35f6 [2019-08-14 11:05:02,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1904109cb/071218a0b89548afb291700b6c63bb6c [2019-08-14 11:05:02,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 11:05:02,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 11:05:02,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 11:05:02,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 11:05:02,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 11:05:02,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 11:05:02" (1/1) ... [2019-08-14 11:05:02,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee1866f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:02, skipping insertion in model container [2019-08-14 11:05:02,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 11:05:02" (1/1) ... [2019-08-14 11:05:02,372 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 11:05:02,542 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 11:05:03,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 11:05:03,977 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 11:05:04,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 11:05:04,839 INFO L192 MainTranslator]: Completed translation [2019-08-14 11:05:04,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04 WrapperNode [2019-08-14 11:05:04,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 11:05:04,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 11:05:04,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 11:05:04,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 11:05:04,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (1/1) ... [2019-08-14 11:05:04,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (1/1) ... [2019-08-14 11:05:04,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (1/1) ... [2019-08-14 11:05:04,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (1/1) ... [2019-08-14 11:05:04,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (1/1) ... [2019-08-14 11:05:05,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (1/1) ... [2019-08-14 11:05:05,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (1/1) ... [2019-08-14 11:05:05,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 11:05:05,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 11:05:05,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 11:05:05,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 11:05:05,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:05:04" (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 [2019-08-14 11:05:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 11:05:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 11:05:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-14 11:05:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-08-14 11:05:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-08-14 11:05:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-08-14 11:05:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 11:05:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-14 11:05:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-08-14 11:05:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-08-14 11:05:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-08-14 11:05:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 11:05:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 11:05:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-14 11:05:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 11:05:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 11:05:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 11:05:09,549 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 11:05:09,552 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-14 11:05:09,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 11:05:09 BoogieIcfgContainer [2019-08-14 11:05:09,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 11:05:09,554 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 11:05:09,554 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 11:05:09,555 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 11:05:09,556 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 11:05:09" (1/1) ... [2019-08-14 11:05:14,015 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 11:05:14,018 INFO L168 Benchmark]: Toolchain (without parser) took 11661.28 ms. Allocated memory was 133.2 MB in the beginning and 648.5 MB in the end (delta: 515.4 MB). Free memory was 74.0 MB in the beginning and 395.0 MB in the end (delta: -321.0 MB). Peak memory consumption was 555.2 MB. Max. memory is 7.1 GB. [2019-08-14 11:05:14,019 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-14 11:05:14,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2483.10 ms. Allocated memory was 133.2 MB in the beginning and 290.5 MB in the end (delta: 157.3 MB). Free memory was 73.8 MB in the beginning and 171.5 MB in the end (delta: -97.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2019-08-14 11:05:14,023 INFO L168 Benchmark]: Boogie Preprocessor took 225.03 ms. Allocated memory is still 290.5 MB. Free memory was 171.5 MB in the beginning and 142.8 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2019-08-14 11:05:14,025 INFO L168 Benchmark]: RCFGBuilder took 4487.67 ms. Allocated memory was 290.5 MB in the beginning and 410.5 MB in the end (delta: 120.1 MB). Free memory was 142.8 MB in the beginning and 95.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 190.9 MB. Max. memory is 7.1 GB. [2019-08-14 11:05:14,026 INFO L168 Benchmark]: Symbolic Interpretation took 4461.22 ms. Allocated memory was 410.5 MB in the beginning and 648.5 MB in the end (delta: 238.0 MB). Free memory was 95.5 MB in the beginning and 395.0 MB in the end (delta: -299.5 MB). Peak memory consumption was 299.4 MB. Max. memory is 7.1 GB. [2019-08-14 11:05:14,039 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 4778]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 73145#(and (= 1 ~a1~0) (= ~a14~0 19) (= 1 ~a3~0) (not (= 1 ~a7~0)) (= ~a25~0 1) (= ~a26~0 17) (= ~a28~0 15) (= 16 ~a4~0)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2483.10 ms. Allocated memory was 133.2 MB in the beginning and 290.5 MB in the end (delta: 157.3 MB). Free memory was 73.8 MB in the beginning and 171.5 MB in the end (delta: -97.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 225.03 ms. Allocated memory is still 290.5 MB. Free memory was 171.5 MB in the beginning and 142.8 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4487.67 ms. Allocated memory was 290.5 MB in the beginning and 410.5 MB in the end (delta: 120.1 MB). Free memory was 142.8 MB in the beginning and 95.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 190.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 4461.22 ms. Allocated memory was 410.5 MB in the beginning and 648.5 MB in the end (delta: 238.0 MB). Free memory was 95.5 MB in the beginning and 395.0 MB in the end (delta: -299.5 MB). Peak memory consumption was 299.4 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...