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_4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:39:50,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:39:50,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:39:50,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:39:50,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:39:50,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:39:50,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:39:50,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:39:50,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:39:50,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:39:50,567 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:39:50,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:39:50,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:39:50,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:39:50,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:39:50,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:39:50,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:39:50,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:39:50,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:39:50,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:39:50,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:39:50,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:39:50,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:39:50,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:39:50,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:39:50,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 11:39:50,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 11:39:50,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 11:39:50,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 11:39:50,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 11:39:50,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 11:39:50,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 11:39:50,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 11:39:50,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:39:50,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:39:50,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:39:50,594 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 11:39:50,609 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:39:50,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:39:50,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:39:50,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:39:50,611 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:39:50,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:39:50,612 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:39:50,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:39:50,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:39:50,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:39:50,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:39:50,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:39:50,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:39:50,613 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:39:50,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:39:50,614 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:39:50,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:39:50,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:39:50,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:39:50,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:39:50,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:39:50,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:39:50,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:39:50,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:39:50,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:39:50,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:39:50,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:39:50,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:39:50,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:39:50,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:39:50,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:39:50,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:39:50,664 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:39:50,664 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:39:50,665 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_4.i [2019-08-08 11:39:50,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/543067847/22a29960cc3a422286399060127d781f/FLAGae7465cc4 [2019-08-08 11:39:51,204 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:39:51,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_4.i [2019-08-08 11:39:51,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/543067847/22a29960cc3a422286399060127d781f/FLAGae7465cc4 [2019-08-08 11:39:51,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/543067847/22a29960cc3a422286399060127d781f [2019-08-08 11:39:51,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:39:51,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:39:51,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:39:51,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:39:51,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:39:51,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ef8e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51, skipping insertion in model container [2019-08-08 11:39:51,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,591 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:39:51,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:39:51,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:39:51,782 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:39:51,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:39:51,814 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:39:51,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51 WrapperNode [2019-08-08 11:39:51,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:39:51,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:39:51,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:39:51,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:39:51,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (1/1) ... [2019-08-08 11:39:51,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:39:51,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:39:51,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:39:51,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:39:51,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:39:51" (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 11:39:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:39:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:39:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:39:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:39:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-08 11:39:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-08-08 11:39:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:39:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:39:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:39:52,164 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:39:52,164 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-08 11:39:52,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:39:52 BoogieIcfgContainer [2019-08-08 11:39:52,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:39:52,165 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:39:52,165 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:39:52,166 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:39:52,167 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:39:52" (1/1) ... [2019-08-08 11:39:52,177 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:39:52,183 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:39:52,190 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:39:52,196 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:39:52,198 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:39:52,231 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-08 11:39:52,246 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:39:52,247 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:39:52,251 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 12#(and (exists ((v_~someBinaryFLOATComparisonOperation_3 Bool) (v_~someBinaryFLOATComparisonOperation_4 Bool)) (not (= 0 (ite (and v_~someBinaryFLOATComparisonOperation_3 v_~someBinaryFLOATComparisonOperation_4) 1 0)))) (= main_~x~0 main_~IN~0) (or (exists ((v_~someBinaryFLOATComparisonOperation_8 Bool)) (not v_~someBinaryFLOATComparisonOperation_8)) (exists ((v_~someBinaryFLOATComparisonOperation_7 Bool)) (not v_~someBinaryFLOATComparisonOperation_7)))) [2019-08-08 11:39:52,252 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:39:52,260 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:39:52,265 INFO L168 Benchmark]: Toolchain (without parser) took 690.23 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 86.1 MB in the beginning and 164.8 MB in the end (delta: -78.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:39:52,266 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-08 11:39:52,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.78 ms. Allocated memory is still 139.5 MB. Free memory was 85.9 MB in the beginning and 76.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-08 11:39:52,268 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 139.5 MB. Free memory was 76.6 MB in the beginning and 75.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-08-08 11:39:52,269 INFO L168 Benchmark]: RCFGBuilder took 324.30 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 75.2 MB in the beginning and 169.9 MB in the end (delta: -94.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-08-08 11:39:52,270 INFO L168 Benchmark]: Symbolic Interpretation took 95.08 ms. Allocated memory is still 200.3 MB. Free memory was 169.9 MB in the beginning and 164.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-08 11:39:52,274 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: 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 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.78 ms. Allocated memory is still 139.5 MB. Free memory was 85.9 MB in the beginning and 76.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 139.5 MB. Free memory was 76.6 MB in the beginning and 75.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 324.30 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 75.2 MB in the beginning and 169.9 MB in the end (delta: -94.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 95.08 ms. Allocated memory is still 200.3 MB. Free memory was 169.9 MB in the beginning and 164.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...