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/Problem02_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 10:00:13,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 10:00:13,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 10:00:13,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 10:00:13,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 10:00:13,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 10:00:13,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 10:00:13,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 10:00:13,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 10:00:13,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 10:00:13,984 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 10:00:13,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 10:00:13,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 10:00:13,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 10:00:13,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 10:00:13,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 10:00:13,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 10:00:13,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 10:00:13,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 10:00:13,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 10:00:13,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 10:00:13,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 10:00:13,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 10:00:13,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 10:00:14,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 10:00:14,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 10:00:14,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 10:00:14,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 10:00:14,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 10:00:14,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 10:00:14,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 10:00:14,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 10:00:14,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 10:00:14,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 10:00:14,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 10:00:14,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 10:00:14,011 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 [2019-08-08 10:00:14,034 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 10:00:14,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 10:00:14,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 10:00:14,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 10:00:14,039 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 10:00:14,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 10:00:14,040 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 10:00:14,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 10:00:14,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 10:00:14,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 10:00:14,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 10:00:14,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 10:00:14,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 10:00:14,042 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 10:00:14,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 10:00:14,042 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 10:00:14,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 10:00:14,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 10:00:14,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 10:00:14,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 10:00:14,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 10:00:14,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 10:00:14,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 10:00:14,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 10:00:14,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 10:00:14,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 10:00:14,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 10:00:14,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 10:00:14,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 10:00:14,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 10:00:14,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 10:00:14,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 10:00:14,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 10:00:14,106 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 10:00:14,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label07.c [2019-08-08 10:00:14,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781381196/0685d80d87da464aa2ac9b921febf6b4/FLAG69079875a [2019-08-08 10:00:14,741 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 10:00:14,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label07.c [2019-08-08 10:00:14,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781381196/0685d80d87da464aa2ac9b921febf6b4/FLAG69079875a [2019-08-08 10:00:14,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781381196/0685d80d87da464aa2ac9b921febf6b4 [2019-08-08 10:00:14,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 10:00:14,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 10:00:15,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 10:00:15,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 10:00:15,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 10:00:15,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 10:00:14" (1/1) ... [2019-08-08 10:00:15,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee2d219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15, skipping insertion in model container [2019-08-08 10:00:15,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 10:00:14" (1/1) ... [2019-08-08 10:00:15,016 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 10:00:15,073 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 10:00:15,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 10:00:15,508 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 10:00:15,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 10:00:15,737 INFO L192 MainTranslator]: Completed translation [2019-08-08 10:00:15,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15 WrapperNode [2019-08-08 10:00:15,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 10:00:15,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 10:00:15,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 10:00:15,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 10:00:15,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (1/1) ... [2019-08-08 10:00:15,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (1/1) ... [2019-08-08 10:00:15,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (1/1) ... [2019-08-08 10:00:15,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (1/1) ... [2019-08-08 10:00:15,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (1/1) ... [2019-08-08 10:00:15,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (1/1) ... [2019-08-08 10:00:15,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (1/1) ... [2019-08-08 10:00:15,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 10:00:15,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 10:00:15,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 10:00:15,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 10:00:15,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:00:15" (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 [2019-08-08 10:00:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 10:00:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 10:00:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-08 10:00:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 10:00:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-08 10:00:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 10:00:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-08 10:00:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-08 10:00:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 10:00:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 10:00:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 10:00:19,111 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 10:00:19,116 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 10:00:19,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 10:00:19 BoogieIcfgContainer [2019-08-08 10:00:19,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 10:00:19,119 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 10:00:19,119 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 10:00:19,119 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 10:00:19,120 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 10:00:19" (1/1) ... [2019-08-08 10:00:19,140 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 10:00:19,148 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 10:00:19,167 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 10:00:19,175 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 10:00:19,176 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 10:00:19,241 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 59 [2019-08-08 10:00:20,275 INFO L185 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 103 [2019-08-08 10:00:20,888 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 10:00:20,889 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 10:00:20,893 INFO L179 IcfgInterpreter]: Location calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 26001#(and (= ~a28~0 11) (= ~a17~0 7) (= ~a19~0 1) (= ~a25~0 1) (= ~a11~0 1) (= ~a21~0 1)) [2019-08-08 10:00:20,895 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 10:00:20,904 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 10:00:20,907 INFO L168 Benchmark]: Toolchain (without parser) took 5906.60 ms. Allocated memory was 138.4 MB in the beginning and 331.9 MB in the end (delta: 193.5 MB). Free memory was 88.3 MB in the beginning and 270.2 MB in the end (delta: -181.8 MB). Peak memory consumption was 127.3 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:20,908 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 138.4 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-08 10:00:20,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.86 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 88.1 MB in the beginning and 171.4 MB in the end (delta: -83.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:20,912 INFO L168 Benchmark]: Boogie Preprocessor took 101.77 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:20,915 INFO L168 Benchmark]: RCFGBuilder took 3276.57 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 166.9 MB in the beginning and 186.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:20,917 INFO L168 Benchmark]: Symbolic Interpretation took 1785.38 ms. Allocated memory was 232.8 MB in the beginning and 331.9 MB in the end (delta: 99.1 MB). Free memory was 186.5 MB in the beginning and 270.2 MB in the end (delta: -83.7 MB). Peak memory consumption was 131.0 MB. Max. memory is 7.1 GB. [2019-08-08 10:00:20,926 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 589]: 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.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 138.4 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.86 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 88.1 MB in the beginning and 171.4 MB in the end (delta: -83.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.77 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3276.57 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 166.9 MB in the beginning and 186.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1785.38 ms. Allocated memory was 232.8 MB in the beginning and 331.9 MB in the end (delta: 99.1 MB). Free memory was 186.5 MB in the beginning and 270.2 MB in the end (delta: -83.7 MB). Peak memory consumption was 131.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...