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_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-09 16:50:09,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 16:50:09,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 16:50:10,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 16:50:10,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 16:50:10,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 16:50:10,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 16:50:10,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 16:50:10,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 16:50:10,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 16:50:10,016 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 16:50:10,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 16:50:10,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 16:50:10,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 16:50:10,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 16:50:10,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 16:50:10,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 16:50:10,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 16:50:10,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 16:50:10,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 16:50:10,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 16:50:10,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 16:50:10,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 16:50:10,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 16:50:10,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-09 16:50:10,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 16:50:10,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 16:50:10,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 16:50:10,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 16:50:10,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 16:50:10,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 16:50:10,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 16:50:10,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 16:50:10,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 16:50:10,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 16:50:10,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 16:50:10,059 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 16:50:10,073 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-09 16:50:10,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-09 16:50:10,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-09 16:50:10,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-09 16:50:10,075 INFO L138 SettingsManager]: * Use SBE=true [2019-08-09 16:50:10,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-09 16:50:10,076 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-09 16:50:10,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-09 16:50:10,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-09 16:50:10,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-09 16:50:10,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-09 16:50:10,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-09 16:50:10,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-09 16:50:10,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-09 16:50:10,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-09 16:50:10,078 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-09 16:50:10,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-09 16:50:10,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-09 16:50:10,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-09 16:50:10,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-09 16:50:10,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-09 16:50:10,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-09 16:50:10,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-09 16:50:10,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-09 16:50:10,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-09 16:50:10,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-09 16:50:10,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-09 16:50:10,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-09 16:50:10,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-09 16:50:10,116 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 16:50:10,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 16:50:10,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 16:50:10,133 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-09 16:50:10,133 INFO L275 PluginConnector]: CDTParser initialized [2019-08-09 16:50:10,134 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label06.c [2019-08-09 16:50:10,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b606477/e9631a72c42b4b62a076685e7ef8e3b4/FLAGe2ae2531a [2019-08-09 16:50:10,765 INFO L306 CDTParser]: Found 1 translation units. [2019-08-09 16:50:10,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label06.c [2019-08-09 16:50:10,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b606477/e9631a72c42b4b62a076685e7ef8e3b4/FLAGe2ae2531a [2019-08-09 16:50:11,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b606477/e9631a72c42b4b62a076685e7ef8e3b4 [2019-08-09 16:50:11,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 16:50:11,066 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-09 16:50:11,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-09 16:50:11,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-09 16:50:11,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-09 16:50:11,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba4075f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11, skipping insertion in model container [2019-08-09 16:50:11,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,083 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-09 16:50:11,142 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-09 16:50:11,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:50:11,675 INFO L188 MainTranslator]: Completed pre-run [2019-08-09 16:50:11,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:50:11,822 INFO L192 MainTranslator]: Completed translation [2019-08-09 16:50:11,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11 WrapperNode [2019-08-09 16:50:11,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-09 16:50:11,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 16:50:11,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 16:50:11,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 16:50:11,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (1/1) ... [2019-08-09 16:50:11,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 16:50:11,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 16:50:11,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 16:50:11,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 16:50:11,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:50:11" (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 16:50:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-09 16:50:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 16:50:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-09 16:50:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 16:50:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-09 16:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-09 16:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-09 16:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-09 16:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 16:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-09 16:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 16:50:13,157 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 16:50:13,157 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-09 16:50:13,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:50:13 BoogieIcfgContainer [2019-08-09 16:50:13,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 16:50:13,160 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 16:50:13,160 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 16:50:13,161 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 16:50:13,163 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:50:13" (1/1) ... [2019-08-09 16:50:14,215 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 16:50:14,225 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 16:50:14,229 INFO L168 Benchmark]: Toolchain (without parser) took 3160.46 ms. Allocated memory was 136.3 MB in the beginning and 266.9 MB in the end (delta: 130.5 MB). Free memory was 85.7 MB in the beginning and 93.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 122.8 MB. Max. memory is 7.1 GB. [2019-08-09 16:50:14,230 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-09 16:50:14,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.03 ms. Allocated memory was 136.3 MB in the beginning and 202.9 MB in the end (delta: 66.6 MB). Free memory was 85.5 MB in the beginning and 168.6 MB in the end (delta: -83.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2019-08-09 16:50:14,233 INFO L168 Benchmark]: Boogie Preprocessor took 112.40 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-08-09 16:50:14,236 INFO L168 Benchmark]: RCFGBuilder took 1223.38 ms. Allocated memory was 202.9 MB in the beginning and 227.0 MB in the end (delta: 24.1 MB). Free memory was 164.0 MB in the beginning and 182.1 MB in the end (delta: -18.1 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. [2019-08-09 16:50:14,237 INFO L168 Benchmark]: Symbolic Interpretation took 1065.01 ms. Allocated memory was 227.0 MB in the beginning and 266.9 MB in the end (delta: 39.8 MB). Free memory was 182.1 MB in the beginning and 93.5 MB in the end (delta: 88.5 MB). Peak memory consumption was 128.4 MB. Max. memory is 7.1 GB. [2019-08-09 16:50:14,248 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 592]: 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 18492#(and (= ~a28~0 10) (= ~a17~0 7) (not (= ~a25~0 1)) (= ~a19~0 1) (= ~a11~0 1) (= ~a21~0 1)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.03 ms. Allocated memory was 136.3 MB in the beginning and 202.9 MB in the end (delta: 66.6 MB). Free memory was 85.5 MB in the beginning and 168.6 MB in the end (delta: -83.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.40 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1223.38 ms. Allocated memory was 202.9 MB in the beginning and 227.0 MB in the end (delta: 24.1 MB). Free memory was 164.0 MB in the beginning and 182.1 MB in the end (delta: -18.1 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1065.01 ms. Allocated memory was 227.0 MB in the beginning and 266.9 MB in the end (delta: 39.8 MB). Free memory was 182.1 MB in the beginning and 93.5 MB in the end (delta: 88.5 MB). Peak memory consumption was 128.4 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...