./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a2ce6cad1ff26c462bd542dafb3ac3798055daa .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a2ce6cad1ff26c462bd542dafb3ac3798055daa ........................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:11:17,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:11:17,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:11:17,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:11:17,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:11:17,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:11:17,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:11:17,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:11:17,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:11:17,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:11:17,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:11:17,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:11:17,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:11:17,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:11:17,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:11:17,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:11:17,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:11:17,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:11:17,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:11:17,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:11:17,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:11:17,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:11:17,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:11:17,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:11:17,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:11:17,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:11:17,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:11:17,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:11:17,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:11:17,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:11:17,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:11:17,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:11:17,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:11:17,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:11:17,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:11:17,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:11:17,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:11:17,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:11:17,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:11:17,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:11:17,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:11:17,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 15:11:17,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:11:17,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:11:17,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:11:17,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:11:17,944 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:11:17,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:11:17,945 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:11:17,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:11:17,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:11:17,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:11:17,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:11:17,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:11:17,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:11:17,947 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:11:17,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:11:17,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:11:17,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:11:17,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:11:17,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:11:17,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:11:17,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:11:17,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:17,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:11:17,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:11:17,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:11:17,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:11:17,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:11:17,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:11:17,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:11:17,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a2ce6cad1ff26c462bd542dafb3ac3798055daa [2020-10-24 15:11:18,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:11:18,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:11:18,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:11:18,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:11:18,389 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:11:18,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2020-10-24 15:11:18,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44fab3ecf/872a3222f37c4795987867efa8129294/FLAG11080cefa [2020-10-24 15:11:19,274 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:11:19,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2020-10-24 15:11:19,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44fab3ecf/872a3222f37c4795987867efa8129294/FLAG11080cefa [2020-10-24 15:11:19,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44fab3ecf/872a3222f37c4795987867efa8129294 [2020-10-24 15:11:19,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:11:19,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:11:19,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:19,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:11:19,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:11:19,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a5e778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19, skipping insertion in model container [2020-10-24 15:11:19,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,645 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:11:19,673 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:11:19,924 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:19,938 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:11:19,973 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:19,995 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:11:19,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19 WrapperNode [2020-10-24 15:11:19,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:19,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:19,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:11:19,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:11:20,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:20,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:11:20,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:11:20,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:11:20,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:20,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:11:20,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:11:20,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:11:20,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:11:20,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 15:11:20,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:11:20,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:11:20,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:11:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:11:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:11:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:11:20,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:11:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:11:20,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:11:20,896 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:11:20,896 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-24 15:11:20,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:20 BoogieIcfgContainer [2020-10-24 15:11:20,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:11:20,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:11:20,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:11:20,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:11:20,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:11:19" (1/3) ... [2020-10-24 15:11:20,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da4f4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:20, skipping insertion in model container [2020-10-24 15:11:20,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (2/3) ... [2020-10-24 15:11:20,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da4f4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:20, skipping insertion in model container [2020-10-24 15:11:20,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:20" (3/3) ... [2020-10-24 15:11:20,908 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2020-10-24 15:11:20,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:11:20,927 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:11:20,943 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:11:20,973 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:11:20,973 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:11:20,973 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:11:20,974 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:11:20,974 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:11:20,974 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:11:20,974 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:11:20,974 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:11:20,993 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-10-24 15:11:21,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 15:11:21,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:21,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:21,002 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:21,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:21,017 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2020-10-24 15:11:21,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:21,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021098858] [2020-10-24 15:11:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:11:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:11:21,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021098858] [2020-10-24 15:11:21,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:11:21,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:11:21,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209436426] [2020-10-24 15:11:21,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:11:21,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:11:21,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:11:21,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:11:21,322 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-10-24 15:11:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:11:21,350 INFO L93 Difference]: Finished difference Result 67 states and 103 transitions. [2020-10-24 15:11:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:11:21,352 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-24 15:11:21,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:11:21,365 INFO L225 Difference]: With dead ends: 67 [2020-10-24 15:11:21,365 INFO L226 Difference]: Without dead ends: 31 [2020-10-24 15:11:21,370 INFO L677 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 [2020-10-24 15:11:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-24 15:11:21,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-24 15:11:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-24 15:11:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-10-24 15:11:21,410 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2020-10-24 15:11:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:11:21,410 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-10-24 15:11:21,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:11:21,411 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-10-24 15:11:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 15:11:21,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:21,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:21,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:11:21,413 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:21,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:21,414 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2020-10-24 15:11:21,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:21,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178822214] [2020-10-24 15:11:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:11:21,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:11:21,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178822214] [2020-10-24 15:11:21,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:11:21,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 15:11:21,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130486488] [2020-10-24 15:11:21,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 15:11:21,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:11:21,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 15:11:21,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 15:11:21,524 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 3 states. [2020-10-24 15:11:21,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:11:21,550 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-10-24 15:11:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 15:11:21,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-24 15:11:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:11:21,553 INFO L225 Difference]: With dead ends: 34 [2020-10-24 15:11:21,553 INFO L226 Difference]: Without dead ends: 31 [2020-10-24 15:11:21,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 15:11:21,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-24 15:11:21,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-24 15:11:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-24 15:11:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-10-24 15:11:21,561 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 15 [2020-10-24 15:11:21,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:11:21,561 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-10-24 15:11:21,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 15:11:21,562 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-10-24 15:11:21,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 15:11:21,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:21,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:21,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:11:21,563 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:21,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:21,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1761490312, now seen corresponding path program 1 times [2020-10-24 15:11:21,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:21,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576486100] [2020-10-24 15:11:21,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:11:21,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:11:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:11:21,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:11:21,749 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:11:21,750 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:11:21,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 15:11:21,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:11:21 BoogieIcfgContainer [2020-10-24 15:11:21,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:11:21,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:11:21,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:11:21,793 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:11:21,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:20" (3/4) ... [2020-10-24 15:11:21,799 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:11:21,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:11:21,802 INFO L168 Benchmark]: Toolchain (without parser) took 2189.06 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 31.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:21,803 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 37.7 MB. Free memory was 19.4 MB in the beginning and 19.3 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:21,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.35 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 27.2 MB in the end (delta: -619.5 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:21,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.16 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 25.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:21,805 INFO L168 Benchmark]: Boogie Preprocessor took 44.22 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 23.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:21,806 INFO L168 Benchmark]: RCFGBuilder took 799.91 ms. Allocated memory is still 50.3 MB. Free memory was 23.5 MB in the beginning and 26.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:21,807 INFO L168 Benchmark]: TraceAbstraction took 892.15 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 32.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:21,808 INFO L168 Benchmark]: Witness Printer took 5.84 ms. Allocated memory is still 60.8 MB. Free memory was 32.0 MB in the beginning and 31.6 MB in the end (delta: 340.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:21,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 37.7 MB. Free memory was 19.4 MB in the beginning and 19.3 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.35 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 27.2 MB in the end (delta: -619.5 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.16 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 25.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.22 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 23.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 799.91 ms. Allocated memory is still 50.3 MB. Free memory was 23.5 MB in the beginning and 26.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 892.15 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 32.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.84 ms. Allocated memory is still 60.8 MB. Free memory was 32.0 MB in the beginning and 31.6 MB in the end (delta: 340.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 82, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 75. Possible FailurePath: [L13] static const float one_modf = 1.0; VAL [one_modf=1] [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [one_modf=1] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1] [L24] COND TRUE j0 < 23 VAL [one_modf=1] [L25] COND TRUE j0 < 0 VAL [one_modf=1] [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = (i0 & 0x80000000) [L29] EXPR sf_u.value [L29] (*iptr) = sf_u.value [L31] return x; VAL [one_modf=1] [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) [L75] return x != x; VAL [one_modf=1] [L87] isnan_float(iptr) && !isnan_float(res) [L75] return x != x; VAL [one_modf=1] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1210.c", 3, "reach_error") VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 28 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.2.0-ee8e70e [2020-10-24 15:11:24,457 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-24 15:11:24,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:11:24,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:11:24,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:11:24,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:11:24,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:11:24,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:11:24,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:11:24,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:11:24,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:11:24,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:11:24,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:11:24,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 15:11:24,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:11:24,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:11:24,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:11:24,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:11:24,673 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:11:24,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:11:24,674 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:11:24,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:11:24,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:11:24,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:11:24,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:11:24,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:11:24,676 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:11:24,676 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:11:24,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:11:24,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:11:24,677 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:11:24,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:11:24,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:11:24,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:11:24,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:11:24,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:11:24,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:24,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:11:24,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:11:24,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:11:24,680 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:11:24,680 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:11:24,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:11:24,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:11:24,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:11:24,681 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a2ce6cad1ff26c462bd542dafb3ac3798055daa [2020-10-24 15:11:25,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:11:25,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:11:25,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:11:25,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:11:25,194 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:11:25,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2020-10-24 15:11:25,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a80f36998/b70eb2fc31be4aef950721061f4983ff/FLAGda714db59 [2020-10-24 15:11:25,977 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:11:25,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2020-10-24 15:11:25,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a80f36998/b70eb2fc31be4aef950721061f4983ff/FLAGda714db59 [2020-10-24 15:11:26,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a80f36998/b70eb2fc31be4aef950721061f4983ff [2020-10-24 15:11:26,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:11:26,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:11:26,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:26,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:11:26,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:11:26,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:26" (1/1) ... [2020-10-24 15:11:26,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6a6a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:26, skipping insertion in model container [2020-10-24 15:11:26,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:26" (1/1) ... [2020-10-24 15:11:26,365 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:11:26,395 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:11:26,602 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:26,620 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:11:26,655 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:26,686 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:11:26,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:26 WrapperNode [2020-10-24 15:11:26,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:26,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:26,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:11:26,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:11:26,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:26" (1/1) ... [2020-10-24 15:11:26,723 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:11:26,725 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:11:26,730 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner has thrown an exception: java.lang.AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.checkExistingDeclarationInformation(TypeChecker.java:340) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckLeftHandSide(TypeChecker.java:360) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckStatement(TypeChecker.java:781) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckBlock(TypeChecker.java:846) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processBody(TypeChecker.java:957) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processImplementation(TypeChecker.java:1033) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.process(TypeChecker.java:1120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:156) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 15:11:26,742 INFO L168 Benchmark]: Toolchain (without parser) took 401.37 ms. Allocated memory is still 50.3 MB. Free memory was 27.7 MB in the beginning and 27.7 MB in the end (delta: 87.0 kB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:26,745 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 39.8 MB. Free memory was 20.3 MB in the beginning and 20.3 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:26,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.51 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 28.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:26,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.33 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 27.7 MB in the end (delta: 912.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:26,756 INFO L339 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 39.8 MB. Free memory was 20.3 MB in the beginning and 20.3 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.51 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 28.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.33 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 27.7 MB in the end (delta: 912.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable * Results from de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: - ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...