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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-09 16:51:29,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 16:51:29,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 16:51:29,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 16:51:29,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 16:51:29,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 16:51:29,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 16:51:29,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 16:51:29,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 16:51:29,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 16:51:29,209 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 16:51:29,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 16:51:29,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 16:51:29,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 16:51:29,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 16:51:29,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 16:51:29,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 16:51:29,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 16:51:29,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 16:51:29,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 16:51:29,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 16:51:29,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 16:51:29,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 16:51:29,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 16:51:29,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-09 16:51:29,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 16:51:29,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 16:51:29,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 16:51:29,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 16:51:29,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 16:51:29,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 16:51:29,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 16:51:29,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 16:51:29,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 16:51:29,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 16:51:29,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 16:51:29,235 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 16:51:29,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-09 16:51:29,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-09 16:51:29,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-09 16:51:29,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-09 16:51:29,251 INFO L138 SettingsManager]: * Use SBE=true [2019-08-09 16:51:29,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-09 16:51:29,252 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-09 16:51:29,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-09 16:51:29,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-09 16:51:29,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-09 16:51:29,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-09 16:51:29,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-09 16:51:29,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-09 16:51:29,253 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-09 16:51:29,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-09 16:51:29,254 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-09 16:51:29,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-09 16:51:29,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-09 16:51:29,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-09 16:51:29,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-09 16:51:29,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-09 16:51:29,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-09 16:51:29,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-09 16:51:29,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-09 16:51:29,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-09 16:51:29,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-09 16:51:29,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-09 16:51:29,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-09 16:51:29,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-09 16:51:29,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 16:51:29,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 16:51:29,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 16:51:29,326 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-09 16:51:29,327 INFO L275 PluginConnector]: CDTParser initialized [2019-08-09 16:51:29,327 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2019-08-09 16:51:29,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de813d1e/4467dd1f0e034dcdb0561ad316c8a789/FLAG5c7e788d9 [2019-08-09 16:51:29,920 INFO L306 CDTParser]: Found 1 translation units. [2019-08-09 16:51:29,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2019-08-09 16:51:29,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de813d1e/4467dd1f0e034dcdb0561ad316c8a789/FLAG5c7e788d9 [2019-08-09 16:51:30,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de813d1e/4467dd1f0e034dcdb0561ad316c8a789 [2019-08-09 16:51:30,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 16:51:30,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-09 16:51:30,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-09 16:51:30,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-09 16:51:30,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-09 16:51:30,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:51:30" (1/1) ... [2019-08-09 16:51:30,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0d78e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:30, skipping insertion in model container [2019-08-09 16:51:30,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:51:30" (1/1) ... [2019-08-09 16:51:30,232 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-09 16:51:30,283 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-09 16:51:30,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:51:30,874 INFO L188 MainTranslator]: Completed pre-run [2019-08-09 16:51:30,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:51:31,020 INFO L192 MainTranslator]: Completed translation [2019-08-09 16:51:31,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31 WrapperNode [2019-08-09 16:51:31,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-09 16:51:31,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 16:51:31,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 16:51:31,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 16:51:31,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (1/1) ... [2019-08-09 16:51:31,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (1/1) ... [2019-08-09 16:51:31,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (1/1) ... [2019-08-09 16:51:31,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (1/1) ... [2019-08-09 16:51:31,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (1/1) ... [2019-08-09 16:51:31,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (1/1) ... [2019-08-09 16:51:31,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (1/1) ... [2019-08-09 16:51:31,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 16:51:31,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 16:51:31,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 16:51:31,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 16:51:31,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:51:31" (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 16:51:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-09 16:51:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 16:51:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-09 16:51:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 16:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-09 16:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-09 16:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-09 16:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-09 16:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 16:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-09 16:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 16:51:32,388 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 16:51:32,388 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-09 16:51:32,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:51:32 BoogieIcfgContainer [2019-08-09 16:51:32,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 16:51:32,391 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 16:51:32,391 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 16:51:32,391 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 16:51:32,392 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:51:32" (1/1) ... [2019-08-09 16:51:33,385 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 16:51:33,392 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 16:51:33,395 INFO L168 Benchmark]: Toolchain (without parser) took 3178.97 ms. Allocated memory was 140.5 MB in the beginning and 266.3 MB in the end (delta: 125.8 MB). Free memory was 86.4 MB in the beginning and 148.1 MB in the end (delta: -61.7 MB). Peak memory consumption was 104.6 MB. Max. memory is 7.1 GB. [2019-08-09 16:51:33,397 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-09 16:51:33,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 803.93 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 86.2 MB in the beginning and 168.2 MB in the end (delta: -81.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2019-08-09 16:51:33,400 INFO L168 Benchmark]: Boogie Preprocessor took 104.66 ms. Allocated memory is still 201.9 MB. Free memory was 168.2 MB in the beginning and 163.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2019-08-09 16:51:33,402 INFO L168 Benchmark]: RCFGBuilder took 1264.38 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 163.0 MB in the beginning and 181.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. [2019-08-09 16:51:33,403 INFO L168 Benchmark]: Symbolic Interpretation took 1001.96 ms. Allocated memory was 228.1 MB in the beginning and 266.3 MB in the end (delta: 38.3 MB). Free memory was 181.7 MB in the beginning and 148.1 MB in the end (delta: 33.6 MB). Peak memory consumption was 112.3 MB. Max. memory is 7.1 GB. [2019-08-09 16:51:33,408 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 502]: 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 13666#(and (not (= ~a19~0 1)) (= ~a28~0 8) (= ~a17~0 8) (= ~a25~0 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 0.37 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 803.93 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 86.2 MB in the beginning and 168.2 MB in the end (delta: -81.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.66 ms. Allocated memory is still 201.9 MB. Free memory was 168.2 MB in the beginning and 163.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1264.38 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 163.0 MB in the beginning and 181.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1001.96 ms. Allocated memory was 228.1 MB in the beginning and 266.3 MB in the end (delta: 38.3 MB). Free memory was 181.7 MB in the beginning and 148.1 MB in the end (delta: 33.6 MB). Peak memory consumption was 112.3 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...