./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1300_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1300_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1300_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:56:50,727 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:56:50,734 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:56:50,746 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:56:50,747 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:56:50,748 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:56:50,749 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:56:50,751 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:56:50,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:56:50,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:56:50,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:56:50,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:56:50,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:56:50,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:56:50,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:56:50,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:56:50,760 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:56:50,762 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:56:50,764 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:56:50,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:56:50,766 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:56:50,768 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:56:50,771 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:56:50,771 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:56:50,771 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:56:50,772 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:56:50,773 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:56:50,774 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:56:50,775 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:56:50,776 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:56:50,776 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:56:50,777 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:56:50,777 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:56:50,778 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:56:50,779 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:56:50,779 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:56:50,780 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:56:50,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:56:50,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:56:50,796 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:56:50,796 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:56:50,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:56:50,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:56:50,797 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:56:50,798 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:56:50,798 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:56:50,798 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:56:50,798 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:56:50,798 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:56:50,798 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:56:50,798 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:56:50,799 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:56:50,799 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:56:50,799 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:56:50,799 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:56:50,799 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:56:50,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:56:50,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:56:50,800 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:56:50,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:56:50,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:56:50,800 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:56:50,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:56:50,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:56:50,801 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:56:50,801 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:56:50,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:56:50,801 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2018-11-28 17:56:50,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:56:50,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:56:50,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:56:50,867 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:56:50,867 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:56:50,868 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-11-28 17:56:50,933 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb03c1e2/e9e19d2f6f834e96ad2b925419a519b5/FLAG6a18211f4 [2018-11-28 17:56:51,426 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:56:51,429 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-11-28 17:56:51,438 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb03c1e2/e9e19d2f6f834e96ad2b925419a519b5/FLAG6a18211f4 [2018-11-28 17:56:51,770 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb03c1e2/e9e19d2f6f834e96ad2b925419a519b5 [2018-11-28 17:56:51,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:56:51,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:56:51,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:51,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:56:51,781 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:56:51,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:51" (1/1) ... [2018-11-28 17:56:51,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763dbe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:51, skipping insertion in model container [2018-11-28 17:56:51,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:51" (1/1) ... [2018-11-28 17:56:51,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:56:51,816 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:56:52,058 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:52,067 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:56:52,099 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:52,123 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:56:52,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52 WrapperNode [2018-11-28 17:56:52,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:52,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:52,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:56:52,125 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:56:52,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:52,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:56:52,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:56:52,156 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:56:52,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (1/1) ... [2018-11-28 17:56:52,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:56:52,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:56:52,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:56:52,205 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:56:52,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (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 [2018-11-28 17:56:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-11-28 17:56:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-11-28 17:56:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 17:56:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 17:56:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:56:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:56:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:56:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:56:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:56:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:56:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:56:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:56:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:56:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:56:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:56:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:56:52,814 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:56:52,814 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 17:56:52,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:52 BoogieIcfgContainer [2018-11-28 17:56:52,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:56:52,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:56:52,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:56:52,819 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:56:52,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:56:51" (1/3) ... [2018-11-28 17:56:52,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d348d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:52, skipping insertion in model container [2018-11-28 17:56:52,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:52" (2/3) ... [2018-11-28 17:56:52,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d348d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:52, skipping insertion in model container [2018-11-28 17:56:52,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:52" (3/3) ... [2018-11-28 17:56:52,823 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300_true-unreach-call.c [2018-11-28 17:56:52,834 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:56:52,844 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:56:52,863 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:56:52,893 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:56:52,894 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:56:52,894 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:56:52,895 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:56:52,895 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:56:52,895 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:56:52,896 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:56:52,896 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:56:52,896 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:56:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-28 17:56:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:56:52,924 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:52,925 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:52,927 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:52,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:52,934 INFO L82 PathProgramCache]: Analyzing trace with hash -2080830514, now seen corresponding path program 1 times [2018-11-28 17:56:52,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:56:52,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:56:52,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:52,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:52,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:53,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:53,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:56:53,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:56:53,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:56:53,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:53,107 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-28 17:56:53,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:53,132 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2018-11-28 17:56:53,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:56:53,133 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 17:56:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:53,143 INFO L225 Difference]: With dead ends: 66 [2018-11-28 17:56:53,144 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 17:56:53,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 17:56:53,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 17:56:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 17:56:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-28 17:56:53,191 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 24 [2018-11-28 17:56:53,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:53,192 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-28 17:56:53,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:56:53,192 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-28 17:56:53,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:56:53,194 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:53,194 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:53,194 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:53,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:53,195 INFO L82 PathProgramCache]: Analyzing trace with hash 52000231, now seen corresponding path program 1 times [2018-11-28 17:56:53,195 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:56:53,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:56:53,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:53,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:53,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:53,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:53,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:56:53,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:56:53,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:56:53,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:56:53,366 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 3 states. [2018-11-28 17:56:53,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:53,431 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2018-11-28 17:56:53,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:56:53,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-28 17:56:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:53,433 INFO L225 Difference]: With dead ends: 44 [2018-11-28 17:56:53,434 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 17:56:53,436 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:56:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 17:56:53,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 17:56:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 17:56:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-11-28 17:56:53,447 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 26 [2018-11-28 17:56:53,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:53,448 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-11-28 17:56:53,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:56:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-11-28 17:56:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 17:56:53,451 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:53,451 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:53,452 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:53,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:53,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1291078367, now seen corresponding path program 1 times [2018-11-28 17:56:53,452 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:56:53,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:56:53,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:53,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:53,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:56:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:56:53,680 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:56:53,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:56:53 BoogieIcfgContainer [2018-11-28 17:56:53,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:56:53,730 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:56:53,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:56:53,730 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:56:53,731 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:52" (3/4) ... [2018-11-28 17:56:53,738 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:56:53,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:56:53,739 INFO L168 Benchmark]: Toolchain (without parser) took 1963.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -122.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:53,742 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:53,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.92 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:53,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.88 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:53,746 INFO L168 Benchmark]: Boogie Preprocessor took 48.41 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:53,746 INFO L168 Benchmark]: RCFGBuilder took 610.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:53,747 INFO L168 Benchmark]: TraceAbstraction took 913.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:53,751 INFO L168 Benchmark]: Witness Printer took 8.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:53,758 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.92 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.88 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.41 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 610.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 913.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * Witness Printer took 8.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 25, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of to_real at line 55. Possible FailurePath: [L50] double x = __VERIFIER_nondet_double(); [L53] CALL, EXPR isinf_double(x) VAL [\old(x)=10737418245] [L17] __int32_t hx, lx; VAL [\old(x)=10737418245, x=10737418245] [L19] ieee_double_shape_type ew_u; [L20] ew_u.value = (x) [L21] EXPR ew_u.parts.msw [L21] (hx) = ew_u.parts.msw [L22] EXPR ew_u.parts.lsw [L22] (lx) = ew_u.parts.lsw [L24] hx &= 0x7fffffff [L25] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L26] hx = 0x7ff00000 - hx [L27] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418245, \result=0, hx=2146435073, lx=-2147483648, x=10737418245] [L53] RET, EXPR isinf_double(x) VAL [isinf_double(x)=0, x=10737418245] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, x=10737418245] [L53] CALL, EXPR isnan_double(x) VAL [\old(x)=10737418245] [L31] return x != x; VAL [\old(x)=10737418245, \result=0, x=10737418245] [L53] RET, EXPR isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=10737418245] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=10737418245] [L53] COND TRUE !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isfinite_double(x) VAL [\old(x)=10737418245] [L34] __int32_t hx; VAL [\old(x)=10737418245, x=10737418245] [L36] ieee_double_shape_type gh_u; [L37] gh_u.value = (x) [L38] EXPR gh_u.parts.msw [L38] (hx) = gh_u.parts.msw [L40] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=10737418245, \result=3, hx=-2147483648, x=10737418245] [L55] RET, EXPR isfinite_double(x) VAL [isfinite_double(x)=3, x=10737418245] [L55] double res = isfinite_double(x); [L58] COND TRUE res == 0.0 VAL [x=10737418245] [L59] __VERIFIER_error() VAL [x=10737418245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 70 SDtfs, 0 SDslu, 27 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:56:56,203 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:56:56,205 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:56:56,221 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-11-28 17:56:56,242 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:56:56,243 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:56:56,244 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:56:56,252 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:56:56,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:56:56,254 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:56:56,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:56:56,262 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:56:56,265 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:56:56,266 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:56:56,267 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:56:56,272 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:56:56,274 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:56:56,274 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:56:56,275 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:56:56,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:56:56,279 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:56:56,280 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:56:56,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:56:56,284 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:56:56,287 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:56:56,287 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:56:56,287 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:56:56,288 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:56:56,289 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:56:56,289 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:56:56,319 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:56:56,320 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:56:56,321 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:56:56,322 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:56:56,322 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:56:56,324 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:56:56,324 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:56:56,324 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:56:56,324 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:56:56,324 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:56:56,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:56:56,325 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:56:56,325 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:56:56,325 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:56:56,325 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:56:56,325 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:56:56,326 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:56:56,326 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:56:56,326 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:56:56,326 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:56:56,326 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:56:56,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:56:56,330 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:56:56,330 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:56:56,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:56:56,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:56:56,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:56:56,331 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:56:56,332 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:56:56,332 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:56:56,332 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:56:56,332 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:56:56,332 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2018-11-28 17:56:56,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:56:56,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:56:56,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:56:56,400 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:56:56,400 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:56:56,401 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-11-28 17:56:56,456 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d633ea68/18d01f454eba47c3b3edef87f451a416/FLAG26331053b [2018-11-28 17:56:56,923 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:56:56,924 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-11-28 17:56:56,933 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d633ea68/18d01f454eba47c3b3edef87f451a416/FLAG26331053b [2018-11-28 17:56:57,248 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d633ea68/18d01f454eba47c3b3edef87f451a416 [2018-11-28 17:56:57,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:56:57,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:56:57,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:57,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:56:57,263 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:56:57,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@891bbf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57, skipping insertion in model container [2018-11-28 17:56:57,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:56:57,302 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:56:57,517 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:57,523 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:56:57,555 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:57,586 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:56:57,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57 WrapperNode [2018-11-28 17:56:57,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:57,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:57,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:56:57,587 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:56:57,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:57,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:56:57,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:56:57,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:56:57,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (1/1) ... [2018-11-28 17:56:57,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:56:57,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:56:57,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:56:57,658 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:56:57,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (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 [2018-11-28 17:56:57,783 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-11-28 17:56:57,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-11-28 17:56:57,783 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 17:56:57,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 17:56:57,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:56:57,783 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:56:57,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:56:57,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:56:57,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:56:57,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:56:57,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:56:57,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:56:57,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:56:57,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:56:57,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:56:57,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:56:58,002 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:56:58,196 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:56:58,360 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:56:58,361 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 17:56:58,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:58 BoogieIcfgContainer [2018-11-28 17:56:58,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:56:58,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:56:58,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:56:58,367 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:56:58,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:56:57" (1/3) ... [2018-11-28 17:56:58,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3af7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:58, skipping insertion in model container [2018-11-28 17:56:58,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:57" (2/3) ... [2018-11-28 17:56:58,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3af7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:58, skipping insertion in model container [2018-11-28 17:56:58,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:58" (3/3) ... [2018-11-28 17:56:58,372 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300_true-unreach-call.c [2018-11-28 17:56:58,382 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:56:58,390 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:56:58,406 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:56:58,438 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:56:58,439 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:56:58,439 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:56:58,439 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:56:58,439 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:56:58,439 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:56:58,440 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:56:58,440 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:56:58,440 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:56:58,457 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-28 17:56:58,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:56:58,464 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:58,465 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:58,467 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:58,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:58,472 INFO L82 PathProgramCache]: Analyzing trace with hash -2080830514, now seen corresponding path program 1 times [2018-11-28 17:56:58,476 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:58,476 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:56:58,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:58,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:58,597 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:58,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:58,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:56:58,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:56:58,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:56:58,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:58,634 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-28 17:56:58,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:58,658 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2018-11-28 17:56:58,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:56:58,659 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 17:56:58,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:58,668 INFO L225 Difference]: With dead ends: 66 [2018-11-28 17:56:58,668 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 17:56:58,672 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:58,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 17:56:58,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 17:56:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 17:56:58,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-28 17:56:58,715 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 24 [2018-11-28 17:56:58,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:58,716 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-28 17:56:58,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:56:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-28 17:56:58,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:56:58,717 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:58,718 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:58,718 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:58,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash 52000231, now seen corresponding path program 1 times [2018-11-28 17:56:58,719 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:58,719 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:56:58,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:56:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:58,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:58,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:58,895 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:58,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:58,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:56:58,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:56:58,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:56:58,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:56:58,910 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 3 states. [2018-11-28 17:56:58,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:58,968 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2018-11-28 17:56:58,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:56:58,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-28 17:56:58,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:58,970 INFO L225 Difference]: With dead ends: 44 [2018-11-28 17:56:58,970 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 17:56:58,971 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:56:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 17:56:58,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 17:56:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 17:56:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-11-28 17:56:58,978 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 26 [2018-11-28 17:56:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:58,979 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-11-28 17:56:58,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:56:58,979 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-11-28 17:56:58,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 17:56:58,980 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:58,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:58,981 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:58,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:58,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1291078367, now seen corresponding path program 1 times [2018-11-28 17:56:58,983 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:58,983 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 17:56:58,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:59,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:59,272 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:59,287 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:59,301 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:59,317 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:59,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 98 [2018-11-28 17:56:59,757 WARN L180 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2018-11-28 17:56:59,780 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:59,781 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:59,796 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2018-11-28 17:56:59,798 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 17:56:59,980 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2018-11-28 17:57:00,145 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-28 17:57:00,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-28 17:57:00,231 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 17:57:00,252 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:57:00,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-28 17:57:00,421 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-28 17:57:00,422 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-28 17:57:00,438 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:57:00,451 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:57:00,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 17:57:00,474 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:82, output treesize:23 [2018-11-28 17:57:01,042 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-11-28 17:57:01,887 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2018-11-28 17:57:05,637 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2018-11-28 17:57:05,639 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:928) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:767) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:339) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2018-11-28 17:57:05,644 INFO L168 Benchmark]: Toolchain (without parser) took 8390.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.3 MB in the beginning and 971.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 121.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:05,645 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:57:05,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.65 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:05,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.63 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:05,649 INFO L168 Benchmark]: Boogie Preprocessor took 39.90 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:57:05,650 INFO L168 Benchmark]: RCFGBuilder took 703.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:05,652 INFO L168 Benchmark]: TraceAbstraction took 7280.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.1 MB in the end (delta: 138.6 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:05,660 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.65 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.63 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.90 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 703.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7280.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.1 MB in the end (delta: 138.6 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...