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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 11:06:08,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 11:06:08,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 11:06:08,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 11:06:08,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 11:06:08,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 11:06:08,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 11:06:08,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 11:06:08,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 11:06:08,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 11:06:08,189 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 11:06:08,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 11:06:08,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 11:06:08,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 11:06:08,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 11:06:08,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 11:06:08,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 11:06:08,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 11:06:08,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 11:06:08,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 11:06:08,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 11:06:08,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 11:06:08,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 11:06:08,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 11:06:08,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 11:06:08,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 11:06:08,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 11:06:08,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 11:06:08,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 11:06:08,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 11:06:08,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 11:06:08,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 11:06:08,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 11:06:08,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 11:06:08,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 11:06:08,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 11:06:08,218 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 11:06:08,232 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 11:06:08,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 11:06:08,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 11:06:08,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 11:06:08,234 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 11:06:08,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 11:06:08,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 11:06:08,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 11:06:08,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 11:06:08,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 11:06:08,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 11:06:08,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 11:06:08,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 11:06:08,235 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 11:06:08,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 11:06:08,236 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 11:06:08,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 11:06:08,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 11:06:08,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 11:06:08,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 11:06:08,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 11:06:08,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 11:06:08,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 11:06:08,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 11:06:08,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 11:06:08,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 11:06:08,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 11:06:08,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 11:06:08,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 11:06:08,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 11:06:08,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 11:06:08,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 11:06:08,285 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 11:06:08,285 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 11:06:08,286 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label51.c [2019-08-14 11:06:08,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20572636b/dbaffa00945142aa8aa9a4ace83edf2c/FLAGf27008025 [2019-08-14 11:06:09,192 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 11:06:09,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label51.c [2019-08-14 11:06:09,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20572636b/dbaffa00945142aa8aa9a4ace83edf2c/FLAGf27008025 [2019-08-14 11:06:09,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20572636b/dbaffa00945142aa8aa9a4ace83edf2c [2019-08-14 11:06:09,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 11:06:09,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 11:06:09,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 11:06:09,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 11:06:09,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 11:06:09,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 11:06:09" (1/1) ... [2019-08-14 11:06:09,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1bda70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:09, skipping insertion in model container [2019-08-14 11:06:09,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 11:06:09" (1/1) ... [2019-08-14 11:06:09,759 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 11:06:09,926 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 11:06:11,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 11:06:11,575 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 11:06:12,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 11:06:12,430 INFO L192 MainTranslator]: Completed translation [2019-08-14 11:06:12,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12 WrapperNode [2019-08-14 11:06:12,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 11:06:12,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 11:06:12,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 11:06:12,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 11:06:12,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (1/1) ... [2019-08-14 11:06:12,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (1/1) ... [2019-08-14 11:06:12,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (1/1) ... [2019-08-14 11:06:12,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (1/1) ... [2019-08-14 11:06:12,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (1/1) ... [2019-08-14 11:06:12,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (1/1) ... [2019-08-14 11:06:12,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (1/1) ... [2019-08-14 11:06:12,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 11:06:12,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 11:06:12,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 11:06:12,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 11:06:12,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 11:06:12" (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 11:06:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 11:06:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 11:06:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-14 11:06:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-08-14 11:06:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-08-14 11:06:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-08-14 11:06:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 11:06:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-14 11:06:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-08-14 11:06:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-08-14 11:06:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-08-14 11:06:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 11:06:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 11:06:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-14 11:06:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 11:06:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 11:06:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 11:06:17,363 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 11:06:17,363 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-14 11:06:17,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 11:06:17 BoogieIcfgContainer [2019-08-14 11:06:17,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 11:06:17,371 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 11:06:17,371 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 11:06:17,371 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 11:06:17,372 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 11:06:17" (1/1) ... [2019-08-14 11:06:22,205 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 11:06:22,209 INFO L168 Benchmark]: Toolchain (without parser) took 12465.80 ms. Allocated memory was 140.0 MB in the beginning and 618.1 MB in the end (delta: 478.2 MB). Free memory was 72.7 MB in the beginning and 486.1 MB in the end (delta: -413.5 MB). Peak memory consumption was 407.3 MB. Max. memory is 7.1 GB. [2019-08-14 11:06:22,210 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-14 11:06:22,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2688.95 ms. Allocated memory was 140.0 MB in the beginning and 276.3 MB in the end (delta: 136.3 MB). Free memory was 72.5 MB in the beginning and 199.5 MB in the end (delta: -127.1 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB. [2019-08-14 11:06:22,212 INFO L168 Benchmark]: Boogie Preprocessor took 293.41 ms. Allocated memory is still 276.3 MB. Free memory was 199.5 MB in the beginning and 171.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-08-14 11:06:22,213 INFO L168 Benchmark]: RCFGBuilder took 4644.24 ms. Allocated memory was 276.3 MB in the beginning and 444.1 MB in the end (delta: 167.8 MB). Free memory was 171.3 MB in the beginning and 335.0 MB in the end (delta: -163.7 MB). Peak memory consumption was 221.2 MB. Max. memory is 7.1 GB. [2019-08-14 11:06:22,214 INFO L168 Benchmark]: Symbolic Interpretation took 4834.86 ms. Allocated memory was 444.1 MB in the beginning and 618.1 MB in the end (delta: 174.1 MB). Free memory was 335.0 MB in the beginning and 486.1 MB in the end (delta: -151.1 MB). Peak memory consumption was 365.6 MB. Max. memory is 7.1 GB. [2019-08-14 11:06:22,219 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 4718]: 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 67426#(and (= 1 ~a1~0) (= 1 ~a3~0) (= ~a26~0 18) (= ~a28~0 17) (= ~a14~0 20) (not (= 1 ~a7~0)) (= ~a25~0 1) (= 16 ~a4~0)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2688.95 ms. Allocated memory was 140.0 MB in the beginning and 276.3 MB in the end (delta: 136.3 MB). Free memory was 72.5 MB in the beginning and 199.5 MB in the end (delta: -127.1 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 293.41 ms. Allocated memory is still 276.3 MB. Free memory was 199.5 MB in the beginning and 171.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4644.24 ms. Allocated memory was 276.3 MB in the beginning and 444.1 MB in the end (delta: 167.8 MB). Free memory was 171.3 MB in the beginning and 335.0 MB in the end (delta: -163.7 MB). Peak memory consumption was 221.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 4834.86 ms. Allocated memory was 444.1 MB in the beginning and 618.1 MB in the end (delta: 174.1 MB). Free memory was 335.0 MB in the beginning and 486.1 MB in the end (delta: -151.1 MB). Peak memory consumption was 365.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...