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/floats-cdfpl/square_8.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 06:17:19,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 06:17:19,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 06:17:19,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 06:17:19,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 06:17:19,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 06:17:19,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 06:17:19,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 06:17:19,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 06:17:19,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 06:17:19,170 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 06:17:19,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 06:17:19,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 06:17:19,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 06:17:19,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 06:17:19,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 06:17:19,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 06:17:19,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 06:17:19,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 06:17:19,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 06:17:19,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 06:17:19,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 06:17:19,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 06:17:19,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 06:17:19,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-18 06:17:19,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 06:17:19,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 06:17:19,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 06:17:19,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 06:17:19,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 06:17:19,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 06:17:19,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 06:17:19,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 06:17:19,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 06:17:19,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 06:17:19,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 06:17:19,198 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 [2019-08-18 06:17:19,212 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 06:17:19,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 06:17:19,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 06:17:19,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 06:17:19,214 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 06:17:19,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 06:17:19,215 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 06:17:19,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 06:17:19,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 06:17:19,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 06:17:19,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 06:17:19,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 06:17:19,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 06:17:19,216 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 06:17:19,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 06:17:19,216 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 06:17:19,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 06:17:19,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 06:17:19,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 06:17:19,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 06:17:19,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 06:17:19,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 06:17:19,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 06:17:19,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 06:17:19,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 06:17:19,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 06:17:19,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 06:17:19,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 06:17:19,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 06:17:19,246 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 06:17:19,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 06:17:19,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 06:17:19,267 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 06:17:19,267 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 06:17:19,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_8.i [2019-08-18 06:17:19,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c806f50dd/68b3f72f5f1e4a67a0de4a70c2d254ad/FLAG2a00b0e97 [2019-08-18 06:17:19,771 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 06:17:19,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_8.i [2019-08-18 06:17:19,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c806f50dd/68b3f72f5f1e4a67a0de4a70c2d254ad/FLAG2a00b0e97 [2019-08-18 06:17:20,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c806f50dd/68b3f72f5f1e4a67a0de4a70c2d254ad [2019-08-18 06:17:20,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 06:17:20,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 06:17:20,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 06:17:20,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 06:17:20,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 06:17:20,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb116d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20, skipping insertion in model container [2019-08-18 06:17:20,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,211 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 06:17:20,230 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 06:17:20,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 06:17:20,452 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 06:17:20,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 06:17:20,491 INFO L192 MainTranslator]: Completed translation [2019-08-18 06:17:20,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20 WrapperNode [2019-08-18 06:17:20,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 06:17:20,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 06:17:20,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 06:17:20,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 06:17:20,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 06:17:20,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 06:17:20,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 06:17:20,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 06:17:20,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:17:20" (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 [2019-08-18 06:17:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 06:17:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 06:17:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 06:17:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 06:17:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-18 06:17:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-08-18 06:17:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 06:17:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 06:17:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 06:17:20,808 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 06:17:20,808 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-18 06:17:20,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:17:20 BoogieIcfgContainer [2019-08-18 06:17:20,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 06:17:20,811 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 06:17:20,812 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 06:17:20,812 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 06:17:20,813 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:17:20" (1/1) ... [2019-08-18 06:17:20,824 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 06:17:20,827 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 06:17:20,833 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 06:17:20,841 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 06:17:20,842 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 06:17:20,879 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-18 06:17:20,894 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-18 06:17:20,894 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-18 06:17:20,896 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 12#(= main_~x~0 main_~IN~0) [2019-08-18 06:17:20,906 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-18 06:17:20,907 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-18 06:17:20,910 INFO L168 Benchmark]: Toolchain (without parser) took 715.43 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.3 MB in the beginning and 163.1 MB in the end (delta: -76.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-18 06:17:20,911 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-18 06:17:20,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.72 ms. Allocated memory is still 140.0 MB. Free memory was 86.1 MB in the beginning and 76.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-08-18 06:17:20,913 INFO L168 Benchmark]: Boogie Preprocessor took 121.96 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 76.7 MB in the beginning and 178.3 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-18 06:17:20,914 INFO L168 Benchmark]: RCFGBuilder took 195.78 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 168.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-18 06:17:20,915 INFO L168 Benchmark]: Symbolic Interpretation took 95.84 ms. Allocated memory is still 200.3 MB. Free memory was 168.4 MB in the beginning and 163.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-08-18 06:17:20,919 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 15]: 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 12#(= main_~x~0 main_~IN~0). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.72 ms. Allocated memory is still 140.0 MB. Free memory was 86.1 MB in the beginning and 76.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.96 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 76.7 MB in the beginning and 178.3 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 195.78 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 168.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 95.84 ms. Allocated memory is still 200.3 MB. Free memory was 168.4 MB in the beginning and 163.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...