./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1052c.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_1052c.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 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 ................................................................................................................................................................................................................................................................................................. 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_1052c.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 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 ........................................................................................................................................................................ 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 15:09:03,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:09:03,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:09:03,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:09:03,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:09:03,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:09:03,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:09:03,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:09:03,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:09:03,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:09:03,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:09:03,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:09:03,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:09:03,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:09:03,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:09:03,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:09:03,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:09:03,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:09:03,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:09:03,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:09:03,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:09:03,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:09:03,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:09:03,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:09:03,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:09:03,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:09:03,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:09:03,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:09:03,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:09:03,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:09:03,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:09:03,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:09:03,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:09:03,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:09:03,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:09:03,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:09:03,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:09:03,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:09:03,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:09:03,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:09:03,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:09:03,289 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 15:09:03,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:09:03,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:09:03,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:09:03,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:09:03,326 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:09:03,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:09:03,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:09:03,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:09:03,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:09:03,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:09:03,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:09:03,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:09:03,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:09:03,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:09:03,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:09:03,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:09:03,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:09:03,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:09:03,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:09:03,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:09:03,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:09:03,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:09:03,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:09:03,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:09:03,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:09:03,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:09:03,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:09:03,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:09:03,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:09:03,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 [2020-10-24 15:09:03,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:09:03,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:09:03,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:09:03,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:09:03,819 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:09:03,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-10-24 15:09:03,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f11dd84b/da390537fb51403b9c3224425972b691/FLAGff9a2dff5 [2020-10-24 15:09:04,557 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:09:04,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-10-24 15:09:04,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f11dd84b/da390537fb51403b9c3224425972b691/FLAGff9a2dff5 [2020-10-24 15:09:04,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f11dd84b/da390537fb51403b9c3224425972b691 [2020-10-24 15:09:04,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:09:04,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:09:04,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:09:04,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:09:04,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:09:04,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:09:04" (1/1) ... [2020-10-24 15:09:04,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9c2167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:04, skipping insertion in model container [2020-10-24 15:09:04,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:09:04" (1/1) ... [2020-10-24 15:09:04,966 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:09:04,986 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:09:05,202 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:09:05,215 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:09:05,243 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:09:05,263 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:09:05,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05 WrapperNode [2020-10-24 15:09:05,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:09:05,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:09:05,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:09:05,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:09:05,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:09:05,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:09:05,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:09:05,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:09:05,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (1/1) ... [2020-10-24 15:09:05,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:09:05,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:09:05,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:09:05,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:09:05,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (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 15:09:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:09:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:09:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:09:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:09:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:09:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:09:05,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:09:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:09:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:09:05,939 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:09:05,940 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 15:09:05,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:09:05 BoogieIcfgContainer [2020-10-24 15:09:05,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:09:05,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:09:05,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:09:05,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:09:05,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:09:04" (1/3) ... [2020-10-24 15:09:05,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6702f477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:09:05, skipping insertion in model container [2020-10-24 15:09:05,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:05" (2/3) ... [2020-10-24 15:09:05,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6702f477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:09:05, skipping insertion in model container [2020-10-24 15:09:05,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:09:05" (3/3) ... [2020-10-24 15:09:05,954 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2020-10-24 15:09:05,970 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:09:05,977 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:09:05,996 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:09:06,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:09:06,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:09:06,032 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:09:06,032 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:09:06,032 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:09:06,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:09:06,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:09:06,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:09:06,052 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-24 15:09:06,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 15:09:06,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:09:06,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:09:06,061 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:09:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:09:06,070 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-10-24 15:09:06,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:09:06,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202561001] [2020-10-24 15:09:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:09:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:09:06,265 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 15:09:06,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202561001] [2020-10-24 15:09:06,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:09:06,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:09:06,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505564446] [2020-10-24 15:09:06,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:09:06,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:09:06,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:09:06,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:09:06,297 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-24 15:09:06,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:09:06,326 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-24 15:09:06,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:09:06,328 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 15:09:06,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:09:06,340 INFO L225 Difference]: With dead ends: 59 [2020-10-24 15:09:06,341 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 15:09:06,344 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 15:09:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 15:09:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 15:09:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 15:09:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-24 15:09:06,387 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-24 15:09:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:09:06,388 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-24 15:09:06,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:09:06,388 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-24 15:09:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:09:06,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:09:06,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:09:06,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:09:06,391 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:09:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:09:06,392 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-10-24 15:09:06,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:09:06,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196854154] [2020-10-24 15:09:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:09:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:09:06,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:09:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:09:06,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:09:06,600 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:09:06,600 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:09:06,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:09:06,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:09:06 BoogieIcfgContainer [2020-10-24 15:09:06,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:09:06,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:09:06,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:09:06,639 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:09:06,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:09:05" (3/4) ... [2020-10-24 15:09:06,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:09:06,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:09:06,647 INFO L168 Benchmark]: Toolchain (without parser) took 1706.10 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 22.1 MB in the beginning and 27.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:06,648 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:09:06,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.54 ms. Allocated memory is still 44.0 MB. Free memory was 21.5 MB in the beginning and 22.3 MB in the end (delta: -793.5 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:06,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.63 ms. Allocated memory is still 44.0 MB. Free memory was 22.2 MB in the beginning and 20.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:06,651 INFO L168 Benchmark]: Boogie Preprocessor took 44.54 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.5 MB in the beginning and 39.5 MB in the end (delta: -19.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:06,652 INFO L168 Benchmark]: RCFGBuilder took 581.79 ms. Allocated memory is still 54.5 MB. Free memory was 39.3 MB in the beginning and 34.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:06,653 INFO L168 Benchmark]: TraceAbstraction took 693.63 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 27.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:06,654 INFO L168 Benchmark]: Witness Printer took 5.46 ms. Allocated memory is still 54.5 MB. Free memory was 27.3 MB in the beginning and 27.0 MB in the end (delta: 288.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:09:06,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.54 ms. Allocated memory is still 44.0 MB. Free memory was 21.5 MB in the beginning and 22.3 MB in the end (delta: -793.5 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.63 ms. Allocated memory is still 44.0 MB. Free memory was 22.2 MB in the beginning and 20.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.54 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.5 MB in the beginning and 39.5 MB in the end (delta: -19.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 581.79 ms. Allocated memory is still 54.5 MB. Free memory was 39.3 MB in the beginning and 34.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 693.63 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 27.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.46 ms. Allocated memory is still 54.5 MB. Free memory was 27.3 MB in the beginning and 27.0 MB in the end (delta: 288.8 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 someUnaryFLOAT_SMToperation at line 77, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 81. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L77] float x = -0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_floor=1000000000000000000000000000000] [L78] float res = floor_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000] [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1052c.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 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=31occurred 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 15:09:09,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:09:09,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:09:09,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:09:09,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:09:09,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:09:09,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:09:09,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:09:09,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:09:09,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:09:09,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:09:09,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:09:09,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:09:09,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:09:09,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:09:09,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:09:09,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:09:09,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:09:09,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:09:09,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:09:09,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:09:09,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:09:09,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:09:09,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:09:09,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:09:09,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:09:09,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:09:09,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:09:09,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:09:09,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:09:09,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:09:09,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:09:09,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:09:09,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:09:09,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:09:09,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:09:09,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:09:09,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:09:09,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:09:09,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:09:09,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:09:09,475 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 15:09:09,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:09:09,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:09:09,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:09:09,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:09:09,532 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:09:09,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:09:09,532 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:09:09,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:09:09,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:09:09,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:09:09,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:09:09,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:09:09,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:09:09,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:09:09,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:09:09,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:09:09,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:09:09,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:09:09,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:09:09,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:09:09,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:09:09,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:09:09,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:09:09,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:09:09,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:09:09,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:09:09,539 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:09:09,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:09:09,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:09:09,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:09:09,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:09:09,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ea4cee1f1883c16db4b84df51657eeb8f7eeec7 [2020-10-24 15:09:10,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:09:10,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:09:10,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:09:10,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:09:10,061 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:09:10,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-10-24 15:09:10,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c693f2209/37e2e1d6f39a4e08a3c49a49db4e3cda/FLAG8c2b9bab4 [2020-10-24 15:09:10,807 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:09:10,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2020-10-24 15:09:10,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c693f2209/37e2e1d6f39a4e08a3c49a49db4e3cda/FLAG8c2b9bab4 [2020-10-24 15:09:11,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c693f2209/37e2e1d6f39a4e08a3c49a49db4e3cda [2020-10-24 15:09:11,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:09:11,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:09:11,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:09:11,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:09:11,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:09:11,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:09:11" (1/1) ... [2020-10-24 15:09:11,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11496103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:11, skipping insertion in model container [2020-10-24 15:09:11,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:09:11" (1/1) ... [2020-10-24 15:09:11,178 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:09:11,204 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:09:11,464 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:09:11,482 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:09:11,536 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:09:11,588 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:09:11,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:11 WrapperNode [2020-10-24 15:09:11,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:09:11,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:09:11,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:09:11,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:09:11,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:09:11" (1/1) ... [2020-10-24 15:09:11,612 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:09:11,613 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:09:11,616 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 15:09:11,621 INFO L168 Benchmark]: Toolchain (without parser) took 467.65 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 37.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 733.6 kB. Max. memory is 16.1 GB. [2020-10-24 15:09:11,622 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory is still 21.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:09:11,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.44 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 38.8 MB in the end (delta: -182.8 kB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:09:11,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.95 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 37.8 MB in the end (delta: 994.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:09:11,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory is still 21.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.44 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 38.8 MB in the end (delta: -182.8 kB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.95 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 37.8 MB in the end (delta: 994.6 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...