./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1032c_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_1032c_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 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 ................................................................................................................................................................................................................................................................................................................. 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_1032c_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 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:55:26,787 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:26,792 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:26,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:26,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:26,807 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:26,808 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:26,810 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:26,812 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:26,813 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:26,814 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:26,814 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:26,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:26,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:26,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:26,819 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:26,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:26,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:26,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:26,827 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:26,828 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:26,830 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:26,833 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:26,833 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:26,833 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:26,835 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:26,836 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:26,837 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:26,838 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:26,839 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:26,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:26,840 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:26,841 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:26,841 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:26,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:26,843 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:26,843 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:55:26,860 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:26,860 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:26,861 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:26,862 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:26,863 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:26,863 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:26,863 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:26,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:26,864 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:26,864 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:55:26,864 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:26,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:26,864 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:26,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:26,865 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:26,866 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:26,866 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:26,867 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:26,867 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:26,867 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:26,867 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:26,867 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:26,868 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:26,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:26,869 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:26,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:26,869 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:26,870 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:55:26,870 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:26,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:55:26,871 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 -> 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 [2018-11-28 17:55:26,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:26,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:26,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:26,943 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:26,943 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:26,944 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-28 17:55:27,009 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32f55c9f/586273f6a3c74ad594dfc9387e34e5be/FLAGc375e7e48 [2018-11-28 17:55:27,481 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:27,481 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-28 17:55:27,489 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32f55c9f/586273f6a3c74ad594dfc9387e34e5be/FLAGc375e7e48 [2018-11-28 17:55:27,819 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32f55c9f/586273f6a3c74ad594dfc9387e34e5be [2018-11-28 17:55:27,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:27,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:27,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:27,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:27,837 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:27,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:27" (1/1) ... [2018-11-28 17:55:27,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de3cabe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:27, skipping insertion in model container [2018-11-28 17:55:27,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:27" (1/1) ... [2018-11-28 17:55:27,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:27,883 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:28,156 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:28,161 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:28,219 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:28,249 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:28,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28 WrapperNode [2018-11-28 17:55:28,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:28,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:28,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:28,252 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:28,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:28,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:28,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:28,293 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:28,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:28,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:28,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:28,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:28,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (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 17:55:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:55:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:55:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:55:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:55:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:55:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-28 17:55:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-28 17:55:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:55:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:29,033 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:29,033 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:29,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:29 BoogieIcfgContainer [2018-11-28 17:55:29,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:29,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:29,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:29,040 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:29,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:27" (1/3) ... [2018-11-28 17:55:29,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434d58a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:29, skipping insertion in model container [2018-11-28 17:55:29,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (2/3) ... [2018-11-28 17:55:29,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434d58a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:29, skipping insertion in model container [2018-11-28 17:55:29,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:29" (3/3) ... [2018-11-28 17:55:29,044 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c_true-unreach-call.c [2018-11-28 17:55:29,053 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:29,060 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:29,078 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:29,112 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:29,113 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:29,113 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:29,113 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:29,114 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:29,114 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:29,114 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:29,115 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:29,115 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:29,140 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-28 17:55:29,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:55:29,146 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:29,147 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] [2018-11-28 17:55:29,149 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:29,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:29,154 INFO L82 PathProgramCache]: Analyzing trace with hash -288864886, now seen corresponding path program 1 times [2018-11-28 17:55:29,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:29,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:29,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:29,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:29,317 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 17:55:29,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:29,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:29,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:29,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:29,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:29,343 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-28 17:55:29,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:29,367 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2018-11-28 17:55:29,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:29,368 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-28 17:55:29,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:29,377 INFO L225 Difference]: With dead ends: 76 [2018-11-28 17:55:29,377 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 17:55:29,381 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 17:55:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 17:55:29,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 17:55:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 17:55:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-28 17:55:29,419 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25 [2018-11-28 17:55:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:29,419 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-28 17:55:29,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:29,420 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-28 17:55:29,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 17:55:29,421 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:29,421 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] [2018-11-28 17:55:29,421 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:29,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:29,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1876368369, now seen corresponding path program 1 times [2018-11-28 17:55:29,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:29,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:29,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:29,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:29,652 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:55:29,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:29 BoogieIcfgContainer [2018-11-28 17:55:29,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:29,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:29,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:29,702 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:29,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:29" (3/4) ... [2018-11-28 17:55:29,708 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:55:29,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:29,710 INFO L168 Benchmark]: Toolchain (without parser) took 1885.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -63.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:29,712 INFO L168 Benchmark]: CDTParser took 0.18 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 17:55:29,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.73 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 17:55:29,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.46 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 17:55:29,717 INFO L168 Benchmark]: Boogie Preprocessor took 50.63 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 17:55:29,719 INFO L168 Benchmark]: RCFGBuilder took 689.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 935.2 MB in the beginning and 1.0 GB in the end (delta: -114.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:29,721 INFO L168 Benchmark]: TraceAbstraction took 665.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:29,722 INFO L168 Benchmark]: Witness Printer took 8.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:29,730 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 422.73 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 41.46 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 50.63 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 689.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 935.2 MB in the beginning and 1.0 GB in the end (delta: -114.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 665.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 8.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 31, overapproximation of bitwiseOr at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = 1.0 / 0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=15032385538] [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; VAL [\old(x)=15032385538, x=15032385538] [L18] ieee_double_shape_type ew_u; [L19] ew_u.value = (x) [L20] EXPR ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L24] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L25] COND FALSE !(exponent_less_1023 < 0) [L31] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L32] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L33] return x; VAL [\old(x)=15032385538, \result=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L87] RET, EXPR round_double(x) VAL [round_double(x)=15032385538, x=15032385538] [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) VAL [\old(x)=15032385538] [L65] __int32_t hx, lx; VAL [\old(x)=15032385538, x=15032385538] [L67] ieee_double_shape_type ew_u; [L68] ew_u.value = (x) [L69] EXPR ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=15032385538, \result=0, hx=2146435072, lx=-2147483648, x=15032385538] [L90] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, res=15032385538, x=15032385538] [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() VAL [res=15032385538, x=15032385538] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 17:55:32,158 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:32,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:32,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:32,173 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:32,174 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:32,176 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:32,177 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:32,179 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:32,180 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:32,181 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:32,181 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:32,182 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:32,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:32,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:32,186 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:32,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:32,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:32,191 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:32,193 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:32,194 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:32,195 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:32,198 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:32,198 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:32,198 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:32,199 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:32,201 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:32,202 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:32,202 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:32,204 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:32,204 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:32,205 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:32,205 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:32,205 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:32,206 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:32,207 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:32,207 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:55:32,223 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:32,223 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:32,224 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:32,224 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:32,225 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:32,225 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:32,225 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:32,226 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:32,226 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:32,226 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:32,226 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:32,226 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:32,227 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:32,227 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:32,227 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:55:32,227 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:55:32,227 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:32,227 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:32,229 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:32,229 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:32,229 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:32,230 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:32,230 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:32,230 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:32,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:32,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:32,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:32,231 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:32,231 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:55:32,231 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:32,232 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:55:32,232 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:55:32,232 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 -> 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 [2018-11-28 17:55:32,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:32,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:32,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:32,294 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:32,294 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:32,295 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-28 17:55:32,356 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78e2210b9/21e3dfcda13b44a6a98f405aefd7b173/FLAG43547f7a6 [2018-11-28 17:55:32,857 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:32,860 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-11-28 17:55:32,870 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78e2210b9/21e3dfcda13b44a6a98f405aefd7b173/FLAG43547f7a6 [2018-11-28 17:55:33,150 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78e2210b9/21e3dfcda13b44a6a98f405aefd7b173 [2018-11-28 17:55:33,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:33,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:33,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:33,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:33,166 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:33,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f875a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33, skipping insertion in model container [2018-11-28 17:55:33,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:33,208 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:33,452 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:33,458 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:33,498 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:33,527 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:33,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33 WrapperNode [2018-11-28 17:55:33,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:33,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:33,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:33,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:33,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:33,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:33,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:33,562 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:33,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:33,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:33,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:33,683 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:33,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (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 17:55:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:55:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:55:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:55:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:55:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:55:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-28 17:55:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-28 17:55:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:55:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:33,982 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:34,244 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:34,517 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:34,517 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:34,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:34 BoogieIcfgContainer [2018-11-28 17:55:34,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:34,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:34,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:34,522 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:34,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:33" (1/3) ... [2018-11-28 17:55:34,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18295bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:34, skipping insertion in model container [2018-11-28 17:55:34,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (2/3) ... [2018-11-28 17:55:34,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18295bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:34, skipping insertion in model container [2018-11-28 17:55:34,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:34" (3/3) ... [2018-11-28 17:55:34,526 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c_true-unreach-call.c [2018-11-28 17:55:34,535 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:34,544 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:34,563 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:34,597 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:34,597 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:34,597 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:34,598 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:34,598 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:34,598 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:34,598 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:34,598 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:34,598 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-28 17:55:34,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:55:34,622 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:34,624 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 17:55:34,626 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:34,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash -16968872, now seen corresponding path program 1 times [2018-11-28 17:55:34,637 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:34,638 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 17:55:34,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:34,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:34,739 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 17:55:34,744 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:34,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:34,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:34,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:34,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:34,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:34,783 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-28 17:55:34,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:34,808 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2018-11-28 17:55:34,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:34,810 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 17:55:34,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:34,821 INFO L225 Difference]: With dead ends: 74 [2018-11-28 17:55:34,821 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 17:55:34,826 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 17:55:34,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 17:55:34,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 17:55:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 17:55:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-28 17:55:34,873 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 24 [2018-11-28 17:55:34,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:34,875 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-28 17:55:34,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-28 17:55:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:55:34,877 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:34,877 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 17:55:34,878 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:34,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:34,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1528384495, now seen corresponding path program 1 times [2018-11-28 17:55:34,880 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:34,882 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) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:55:34,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:35,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:35,386 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 17:55:35,386 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:35,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:35,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:55:35,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:55:35,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:55:35,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:55:35,411 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-11-28 17:55:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:37,160 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2018-11-28 17:55:37,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 17:55:37,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:55:37,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:37,164 INFO L225 Difference]: With dead ends: 63 [2018-11-28 17:55:37,164 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 17:55:37,166 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-28 17:55:37,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 17:55:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2018-11-28 17:55:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 17:55:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-28 17:55:37,174 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-11-28 17:55:37,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:37,174 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-28 17:55:37,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:55:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-28 17:55:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:55:37,176 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:37,176 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 17:55:37,176 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:37,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:37,177 INFO L82 PathProgramCache]: Analyzing trace with hash 707416066, now seen corresponding path program 1 times [2018-11-28 17:55:37,177 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:37,177 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 17:55:37,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:37,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:38,725 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:38,728 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:38,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-11-28 17:55:38,881 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-11-28 17:55:38,947 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 40 treesize of output 35 [2018-11-28 17:55:38,949 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:39,093 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 35 treesize of output 27 [2018-11-28 17:55:39,171 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 23 treesize of output 9 [2018-11-28 17:55:39,172 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:39,180 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:39,189 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:39,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:39,206 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:18 [2018-11-28 17:55:40,263 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 17:55:40,263 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:40,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:40,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 17:55:40,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 17:55:40,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 17:55:40,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 17:55:40,284 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 11 states. [2018-11-28 17:55:42,142 WARN L180 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 17:55:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:45,366 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-11-28 17:55:45,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 17:55:45,367 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-28 17:55:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:45,368 INFO L225 Difference]: With dead ends: 42 [2018-11-28 17:55:45,368 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 17:55:45,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 17:55:45,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 17:55:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-28 17:55:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 17:55:45,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-28 17:55:45,380 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2018-11-28 17:55:45,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:45,380 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-28 17:55:45,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 17:55:45,381 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-28 17:55:45,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:55:45,383 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:45,383 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 17:55:45,383 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:45,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:45,384 INFO L82 PathProgramCache]: Analyzing trace with hash 414013059, now seen corresponding path program 1 times [2018-11-28 17:55:45,384 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:45,384 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 17:55:45,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:45,474 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:45,641 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 17:55:45,641 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:45,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:45,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:55:45,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:55:45,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:55:45,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:55:45,656 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 7 states. [2018-11-28 17:55:46,411 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-28 17:55:46,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:46,613 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-11-28 17:55:46,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 17:55:46,615 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:55:46,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:46,615 INFO L225 Difference]: With dead ends: 41 [2018-11-28 17:55:46,616 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:55:46,616 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:55:46,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:55:46,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:55:46,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:55:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:55:46,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 17:55:46,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:46,619 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:55:46,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:55:46,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:55:46,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:55:46,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:55:46,816 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:46,816 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:46,816 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:46,817 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-11-28 17:55:46,817 INFO L444 ceAbstractionStarter]: At program point L66-2(lines 66 71) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-28 17:55:46,817 INFO L448 ceAbstractionStarter]: For program point L66-3(lines 66 71) no Hoare annotation was computed. [2018-11-28 17:55:46,817 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-11-28 17:55:46,817 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-11-28 17:55:46,817 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-11-28 17:55:46,817 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-11-28 17:55:46,817 INFO L448 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-11-28 17:55:46,818 INFO L448 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-11-28 17:55:46,818 INFO L451 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-11-28 17:55:46,818 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-28 17:55:46,818 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-11-28 17:55:46,818 INFO L448 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-11-28 17:55:46,818 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-28 17:55:46,818 INFO L448 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-11-28 17:55:46,819 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-11-28 17:55:46,819 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-11-28 17:55:46,819 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 14 61) no Hoare annotation was computed. [2018-11-28 17:55:46,819 INFO L448 ceAbstractionStarter]: For program point L54-2(lines 54 59) no Hoare annotation was computed. [2018-11-28 17:55:46,819 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-11-28 17:55:46,819 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 22) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-11-28 17:55:46,819 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 22) no Hoare annotation was computed. [2018-11-28 17:55:46,820 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-11-28 17:55:46,820 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-11-28 17:55:46,820 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-11-28 17:55:46,820 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:46,820 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:55:46,820 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:46,820 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:46,820 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-11-28 17:55:46,821 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-11-28 17:55:46,821 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-28 17:55:46,822 INFO L444 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-11-28 17:55:46,822 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-11-28 17:55:46,822 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-11-28 17:55:46,822 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-11-28 17:55:46,822 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2018-11-28 17:55:46,822 INFO L448 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-28 17:55:46,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:46 BoogieIcfgContainer [2018-11-28 17:55:46,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:46,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:46,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:46,839 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:46,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:34" (3/4) ... [2018-11-28 17:55:46,844 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:55:46,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:55:46,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-28 17:55:46,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-11-28 17:55:46,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:55:46,861 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-28 17:55:46,862 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 17:55:46,862 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:55:46,888 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:55:46,888 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 17:55:46,928 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:55:46,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:46,929 INFO L168 Benchmark]: Toolchain (without parser) took 13775.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 946.0 MB in the beginning and 912.3 MB in the end (delta: 33.6 MB). Peak memory consumption was 172.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,930 INFO L168 Benchmark]: CDTParser took 0.17 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 17:55:46,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.04 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,931 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.45 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,932 INFO L168 Benchmark]: Boogie Preprocessor took 121.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -196.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,933 INFO L168 Benchmark]: RCFGBuilder took 834.76 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,933 INFO L168 Benchmark]: TraceAbstraction took 12318.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 919.1 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,934 INFO L168 Benchmark]: Witness Printer took 90.62 ms. Allocated memory is still 1.2 GB. Free memory was 919.1 MB in the beginning and 912.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,941 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 369.04 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 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 32.45 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 121.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -196.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 834.76 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12318.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 919.1 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. * Witness Printer took 90.62 ms. Allocated memory is still 1.2 GB. Free memory was 919.1 MB in the beginning and 912.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 12.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 7.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 131 SDslu, 372 SDs, 0 SdLazy, 205 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 19 QuantifiedInterpolants, 15779 SizeOfPredicates, 14 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...