./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1051.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_1051.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 9192ebbb056e27a8831cb8246a8c32082898b28d ................................................................................................................................................................................................................................................................................................. 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_1051.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 9192ebbb056e27a8831cb8246a8c32082898b28d ........................................................................................................................................................................ 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 15:08:51,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:08:51,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:08:51,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:08:51,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:08:51,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:08:51,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:08:51,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:08:51,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:08:51,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:08:51,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:08:51,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:08:51,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:08:51,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:08:51,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:08:51,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:08:51,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:08:51,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:08:51,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:08:52,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:08:52,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:08:52,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:08:52,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:08:52,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:08:52,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:08:52,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:08:52,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:08:52,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:08:52,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:08:52,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:08:52,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:08:52,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:08:52,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:08:52,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:08:52,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:08:52,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:08:52,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:08:52,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:08:52,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:08:52,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:08:52,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:08:52,043 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 15:08:52,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:08:52,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:08:52,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:08:52,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:08:52,104 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:08:52,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:08:52,104 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:08:52,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:08:52,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:08:52,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:08:52,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:08:52,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:08:52,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:08:52,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:08:52,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:08:52,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:08:52,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:08:52,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:08:52,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:08:52,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:08:52,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:08:52,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:08:52,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:08:52,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:08:52,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:08:52,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:08:52,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:08:52,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:08:52,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:08:52,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9192ebbb056e27a8831cb8246a8c32082898b28d [2020-10-24 15:08:52,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:08:52,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:08:52,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:08:52,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:08:52,576 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:08:52,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2020-10-24 15:08:52,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e9d3b893/c6f559e1c8ec4b27ba800c799cd49a01/FLAG0bab862a3 [2020-10-24 15:08:53,356 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:08:53,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2020-10-24 15:08:53,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e9d3b893/c6f559e1c8ec4b27ba800c799cd49a01/FLAG0bab862a3 [2020-10-24 15:08:53,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e9d3b893/c6f559e1c8ec4b27ba800c799cd49a01 [2020-10-24 15:08:53,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:08:53,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:08:53,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:53,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:08:53,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:08:53,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:53" (1/1) ... [2020-10-24 15:08:53,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa2a06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:53, skipping insertion in model container [2020-10-24 15:08:53,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:53" (1/1) ... [2020-10-24 15:08:53,747 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:08:53,766 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:08:54,005 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:54,015 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:08:54,042 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:54,059 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:08:54,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54 WrapperNode [2020-10-24 15:08:54,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:54,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:08:54,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:08:54,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:08:54,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:08:54,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:08:54,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:08:54,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:08:54,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (1/1) ... [2020-10-24 15:08:54,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:08:54,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:08:54,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:08:54,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:08:54,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (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 15:08:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:08:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:08:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:08:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:08:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:08:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:08:54,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:08:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:08:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:08:54,654 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:08:54,655 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-24 15:08:54,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:54 BoogieIcfgContainer [2020-10-24 15:08:54,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:08:54,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:08:54,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:08:54,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:08:54,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:08:53" (1/3) ... [2020-10-24 15:08:54,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227ebd4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:08:54, skipping insertion in model container [2020-10-24 15:08:54,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:54" (2/3) ... [2020-10-24 15:08:54,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227ebd4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:08:54, skipping insertion in model container [2020-10-24 15:08:54,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:54" (3/3) ... [2020-10-24 15:08:54,671 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2020-10-24 15:08:54,690 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:08:54,697 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:08:54,715 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:08:54,758 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:08:54,759 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:08:54,759 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:08:54,761 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:08:54,761 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:08:54,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:08:54,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:08:54,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:08:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-24 15:08:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 15:08:54,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:54,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:54,828 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:54,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:54,839 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2020-10-24 15:08:54,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:08:54,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608887847] [2020-10-24 15:08:54,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:08:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:08:55,060 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 15:08:55,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608887847] [2020-10-24 15:08:55,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:08:55,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:08:55,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493382585] [2020-10-24 15:08:55,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:08:55,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:08:55,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:08:55,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:08:55,100 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2020-10-24 15:08:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:08:55,127 INFO L93 Difference]: Finished difference Result 51 states and 77 transitions. [2020-10-24 15:08:55,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:08:55,129 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 15:08:55,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:08:55,155 INFO L225 Difference]: With dead ends: 51 [2020-10-24 15:08:55,156 INFO L226 Difference]: Without dead ends: 23 [2020-10-24 15:08:55,161 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 15:08:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-24 15:08:55,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-24 15:08:55,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-24 15:08:55,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-10-24 15:08:55,208 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2020-10-24 15:08:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:08:55,209 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-10-24 15:08:55,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:08:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-10-24 15:08:55,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:08:55,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:55,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:55,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:08:55,212 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:55,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:55,216 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2020-10-24 15:08:55,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:08:55,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808166270] [2020-10-24 15:08:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:08:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:08:55,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:08:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:08:55,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:08:55,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:08:55,523 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:08:55,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:08:55,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:08:55 BoogieIcfgContainer [2020-10-24 15:08:55,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:08:55,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:08:55,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:08:55,578 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:08:55,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:54" (3/4) ... [2020-10-24 15:08:55,583 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:08:55,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:08:55,589 INFO L168 Benchmark]: Toolchain (without parser) took 1866.23 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.1 MB in the beginning and 44.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:55,591 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 39.8 MB. Free memory was 26.8 MB in the beginning and 26.8 MB in the end (delta: 32.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:55,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.39 ms. Allocated memory is still 54.5 MB. Free memory was 31.4 MB in the beginning and 34.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:55,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.27 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 32.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:55,597 INFO L168 Benchmark]: Boogie Preprocessor took 31.19 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 31.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:55,599 INFO L168 Benchmark]: RCFGBuilder took 521.80 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 27.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:55,600 INFO L168 Benchmark]: TraceAbstraction took 915.87 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.5 MB in the beginning and 44.5 MB in the end (delta: -17.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:55,602 INFO L168 Benchmark]: Witness Printer took 6.78 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 44.2 MB in the end (delta: 364.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:55,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 39.8 MB. Free memory was 26.8 MB in the beginning and 26.8 MB in the end (delta: 32.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.39 ms. Allocated memory is still 54.5 MB. Free memory was 31.4 MB in the beginning and 34.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.27 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 32.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.19 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 31.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 521.80 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 27.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 915.87 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.5 MB in the beginning and 44.5 MB in the end (delta: -17.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.78 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 44.2 MB in the end (delta: 364.6 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 68, overapproximation of bitwiseAnd at line 24, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 60. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L68] float x = 0.0f / 0.0f; [L17] __int32_t i0, j0; [L18] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] ix = (i0 & 0x7fffffff) [L25] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L26] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L46] COND FALSE !(!((ix) < 0x7f800000L)) [L49] return x; VAL [huge_floor=1000000000000000000000000000000] [L69] float res = floor_float(x); [L60] return x != x; VAL [huge_floor=1000000000000000000000000000000] [L72] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1051.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 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=27occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 15:08:58,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:08:58,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:08:58,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:08:58,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:08:58,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:08:58,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:08:58,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:08:58,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:08:58,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:08:58,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:08:58,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:08:58,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:08:58,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:08:58,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:08:58,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:08:58,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:08:58,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:08:58,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:08:58,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:08:58,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:08:58,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:08:58,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:08:58,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:08:58,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:08:58,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:08:58,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:08:58,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:08:58,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:08:58,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:08:58,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:08:58,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:08:58,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:08:58,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:08:58,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:08:58,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:08:58,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:08:58,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:08:58,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:08:58,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:08:58,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:08:58,400 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 15:08:58,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:08:58,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:08:58,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:08:58,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:08:58,429 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:08:58,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:08:58,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:08:58,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:08:58,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:08:58,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:08:58,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:08:58,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:08:58,432 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:08:58,432 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:08:58,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:08:58,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:08:58,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:08:58,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:08:58,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:08:58,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:08:58,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:08:58,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:08:58,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:08:58,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:08:58,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:08:58,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:08:58,436 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:08:58,436 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:08:58,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:08:58,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:08:58,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:08:58,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9192ebbb056e27a8831cb8246a8c32082898b28d [2020-10-24 15:08:58,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:08:58,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:08:58,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:08:58,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:08:58,883 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:08:58,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2020-10-24 15:08:58,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/460569f30/c6ef5cfd52a64e8db293f5e6b4723dc6/FLAG4dd4ac801 [2020-10-24 15:08:59,581 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:08:59,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2020-10-24 15:08:59,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/460569f30/c6ef5cfd52a64e8db293f5e6b4723dc6/FLAG4dd4ac801 [2020-10-24 15:08:59,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/460569f30/c6ef5cfd52a64e8db293f5e6b4723dc6 [2020-10-24 15:08:59,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:08:59,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:08:59,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:59,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:08:59,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:08:59,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:59" (1/1) ... [2020-10-24 15:08:59,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3253ac1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:59, skipping insertion in model container [2020-10-24 15:08:59,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:59" (1/1) ... [2020-10-24 15:08:59,961 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:08:59,987 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:09:00,224 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:09:00,250 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:09:00,292 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:09:00,315 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:09:00,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:00 WrapperNode [2020-10-24 15:09:00,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:09:00,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:09:00,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:09:00,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:09:00,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:00" (1/1) ... [2020-10-24 15:09:00,337 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:09:00,338 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:09:00,340 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 15:09:00,345 INFO L168 Benchmark]: Toolchain (without parser) took 412.95 ms. Allocated memory is still 56.6 MB. Free memory was 33.6 MB in the beginning and 33.9 MB in the end (delta: -261.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:09:00,346 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 41.9 MB. Free memory was 21.4 MB in the beginning and 21.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:09:00,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.25 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 34.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:00,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.18 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 33.9 MB in the end (delta: 986.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:09:00,351 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 41.9 MB. Free memory was 21.4 MB in the beginning and 21.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.25 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 34.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.18 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 33.9 MB in the end (delta: 986.9 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...