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_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-09 16:54:10,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 16:54:10,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 16:54:10,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 16:54:10,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 16:54:10,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 16:54:10,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 16:54:10,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 16:54:10,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 16:54:10,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 16:54:10,784 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 16:54:10,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 16:54:10,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 16:54:10,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 16:54:10,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 16:54:10,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 16:54:10,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 16:54:10,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 16:54:10,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 16:54:10,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 16:54:10,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 16:54:10,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 16:54:10,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 16:54:10,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 16:54:10,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-09 16:54:10,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 16:54:10,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 16:54:10,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 16:54:10,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 16:54:10,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 16:54:10,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 16:54:10,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 16:54:10,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 16:54:10,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 16:54:10,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 16:54:10,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 16:54:10,812 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 16:54:10,826 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-09 16:54:10,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-09 16:54:10,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-09 16:54:10,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-09 16:54:10,828 INFO L138 SettingsManager]: * Use SBE=true [2019-08-09 16:54:10,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-09 16:54:10,828 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-09 16:54:10,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-09 16:54:10,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-09 16:54:10,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-09 16:54:10,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-09 16:54:10,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-09 16:54:10,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-09 16:54:10,830 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-09 16:54:10,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-09 16:54:10,830 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-09 16:54:10,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-09 16:54:10,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-09 16:54:10,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-09 16:54:10,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-09 16:54:10,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-09 16:54:10,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-09 16:54:10,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-09 16:54:10,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-09 16:54:10,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-09 16:54:10,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-09 16:54:10,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-09 16:54:10,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-09 16:54:10,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-09 16:54:10,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 16:54:10,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 16:54:10,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 16:54:10,880 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-09 16:54:10,880 INFO L275 PluginConnector]: CDTParser initialized [2019-08-09 16:54:10,881 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label20.c [2019-08-09 16:54:10,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1032ec527/370ac41cf20d493fac66cfc23fae8435/FLAG202c815c0 [2019-08-09 16:54:11,721 INFO L306 CDTParser]: Found 1 translation units. [2019-08-09 16:54:11,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label20.c [2019-08-09 16:54:11,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1032ec527/370ac41cf20d493fac66cfc23fae8435/FLAG202c815c0 [2019-08-09 16:54:11,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1032ec527/370ac41cf20d493fac66cfc23fae8435 [2019-08-09 16:54:11,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 16:54:11,828 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-09 16:54:11,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-09 16:54:11,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-09 16:54:11,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-09 16:54:11,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:54:11" (1/1) ... [2019-08-09 16:54:11,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f874d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:11, skipping insertion in model container [2019-08-09 16:54:11,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:54:11" (1/1) ... [2019-08-09 16:54:11,848 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-09 16:54:11,995 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-09 16:54:13,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:54:13,296 INFO L188 MainTranslator]: Completed pre-run [2019-08-09 16:54:14,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:54:14,105 INFO L192 MainTranslator]: Completed translation [2019-08-09 16:54:14,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14 WrapperNode [2019-08-09 16:54:14,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-09 16:54:14,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 16:54:14,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 16:54:14,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 16:54:14,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (1/1) ... [2019-08-09 16:54:14,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (1/1) ... [2019-08-09 16:54:14,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (1/1) ... [2019-08-09 16:54:14,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (1/1) ... [2019-08-09 16:54:14,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (1/1) ... [2019-08-09 16:54:14,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (1/1) ... [2019-08-09 16:54:14,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (1/1) ... [2019-08-09 16:54:14,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 16:54:14,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 16:54:14,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 16:54:14,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 16:54:14,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:14" (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 16:54:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-09 16:54:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 16:54:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-09 16:54:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-08-09 16:54:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-08-09 16:54:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-08-09 16:54:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 16:54:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-09 16:54:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-08-09 16:54:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-08-09 16:54:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-08-09 16:54:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-09 16:54:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-09 16:54:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-09 16:54:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 16:54:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-09 16:54:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 16:54:18,914 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 16:54:18,917 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-09 16:54:18,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:54:18 BoogieIcfgContainer [2019-08-09 16:54:18,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 16:54:18,920 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 16:54:18,920 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 16:54:18,920 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 16:54:18,921 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:54:18" (1/1) ... [2019-08-09 16:54:23,447 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 16:54:23,457 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 16:54:23,460 INFO L168 Benchmark]: Toolchain (without parser) took 11631.26 ms. Allocated memory was 134.7 MB in the beginning and 551.6 MB in the end (delta: 416.8 MB). Free memory was 69.4 MB in the beginning and 240.4 MB in the end (delta: -170.9 MB). Peak memory consumption was 380.4 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:23,464 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 134.7 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-09 16:54:23,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2277.44 ms. Allocated memory was 134.7 MB in the beginning and 287.3 MB in the end (delta: 152.6 MB). Free memory was 69.0 MB in the beginning and 215.3 MB in the end (delta: -146.3 MB). Peak memory consumption was 113.1 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:23,466 INFO L168 Benchmark]: Boogie Preprocessor took 272.14 ms. Allocated memory is still 287.3 MB. Free memory was 215.3 MB in the beginning and 185.4 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:23,467 INFO L168 Benchmark]: RCFGBuilder took 4539.81 ms. Allocated memory was 287.3 MB in the beginning and 389.5 MB in the end (delta: 102.2 MB). Free memory was 185.4 MB in the beginning and 134.4 MB in the end (delta: 51.0 MB). Peak memory consumption was 228.9 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:23,468 INFO L168 Benchmark]: Symbolic Interpretation took 4537.38 ms. Allocated memory was 389.5 MB in the beginning and 551.6 MB in the end (delta: 162.0 MB). Free memory was 134.4 MB in the beginning and 240.4 MB in the end (delta: -106.0 MB). Peak memory consumption was 190.6 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:23,473 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 4736]: 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 67764#(and (= ~a14~0 18) (= 1 ~a1~0) (= ~a28~0 16) (= 1 ~a3~0) (not (= 1 ~a7~0)) (= ~a25~0 1) (= ~a26~0 17) (= 16 ~a4~0)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 134.7 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2277.44 ms. Allocated memory was 134.7 MB in the beginning and 287.3 MB in the end (delta: 152.6 MB). Free memory was 69.0 MB in the beginning and 215.3 MB in the end (delta: -146.3 MB). Peak memory consumption was 113.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 272.14 ms. Allocated memory is still 287.3 MB. Free memory was 215.3 MB in the beginning and 185.4 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4539.81 ms. Allocated memory was 287.3 MB in the beginning and 389.5 MB in the end (delta: 102.2 MB). Free memory was 185.4 MB in the beginning and 134.4 MB in the end (delta: 51.0 MB). Peak memory consumption was 228.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 4537.38 ms. Allocated memory was 389.5 MB in the beginning and 551.6 MB in the end (delta: 162.0 MB). Free memory was 134.4 MB in the beginning and 240.4 MB in the end (delta: -106.0 MB). Peak memory consumption was 190.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...