./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0720.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_0720.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 3a46db52b19fb11eeacebca884b6de40c52cb082 ............................................................................................................................................................................................................................................................................................... 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_0720.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 3a46db52b19fb11eeacebca884b6de40c52cb082 .............................................................................................................................................................................. 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 15:07:55,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:07:55,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:07:55,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:07:55,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:07:55,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:07:55,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:07:55,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:07:55,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:07:55,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:07:55,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:07:55,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:07:55,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:07:55,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:07:55,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:07:55,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:07:55,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:07:55,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:07:55,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:07:55,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:07:55,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:07:55,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:07:55,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:07:55,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:07:55,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:07:55,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:07:55,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:07:55,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:07:55,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:07:55,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:07:55,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:07:55,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:07:55,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:07:55,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:07:55,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:07:55,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:07:55,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:07:55,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:07:55,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:07:55,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:07:55,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:07:55,214 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 15:07:55,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:07:55,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:07:55,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:07:55,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:07:55,270 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:07:55,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:07:55,271 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:07:55,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:07:55,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:07:55,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:07:55,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:07:55,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:07:55,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:07:55,273 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:07:55,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:07:55,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:07:55,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:07:55,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:07:55,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:07:55,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:07:55,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:07:55,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:07:55,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:07:55,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:07:55,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:07:55,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:07:55,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:07:55,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:07:55,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:07:55,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-10-24 15:07:55,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:07:55,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:07:55,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:07:55,721 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:07:55,722 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:07:55,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 15:07:55,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f57bacf42/41f267e64bdb466399fa90057097a7a5/FLAGff79b874a [2020-10-24 15:07:56,534 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:07:56,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 15:07:56,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f57bacf42/41f267e64bdb466399fa90057097a7a5/FLAGff79b874a [2020-10-24 15:07:56,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f57bacf42/41f267e64bdb466399fa90057097a7a5 [2020-10-24 15:07:56,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:07:56,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:07:56,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:07:56,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:07:56,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:07:56,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:07:56" (1/1) ... [2020-10-24 15:07:56,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1753c8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:56, skipping insertion in model container [2020-10-24 15:07:56,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:07:56" (1/1) ... [2020-10-24 15:07:56,935 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:07:56,959 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:07:57,180 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:07:57,192 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:07:57,226 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:07:57,244 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:07:57,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57 WrapperNode [2020-10-24 15:07:57,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:07:57,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:07:57,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:07:57,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:07:57,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:07:57,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:07:57,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:07:57,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:07:57,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (1/1) ... [2020-10-24 15:07:57,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:07:57,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:07:57,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:07:57,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:07:57,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (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 15:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:07:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:07:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:07:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:07:57,788 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:07:57,788 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 15:07:57,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:07:57 BoogieIcfgContainer [2020-10-24 15:07:57,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:07:57,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:07:57,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:07:57,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:07:57,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:07:56" (1/3) ... [2020-10-24 15:07:57,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8b201a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:07:57, skipping insertion in model container [2020-10-24 15:07:57,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:07:57" (2/3) ... [2020-10-24 15:07:57,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8b201a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:07:57, skipping insertion in model container [2020-10-24 15:07:57,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:07:57" (3/3) ... [2020-10-24 15:07:57,809 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-10-24 15:07:57,824 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:07:57,830 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:07:57,847 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:07:57,879 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:07:57,880 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:07:57,880 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:07:57,880 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:07:57,880 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:07:57,880 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:07:57,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:07:57,881 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:07:57,907 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-24 15:07:57,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 15:07:57,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:07:57,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:07:57,914 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:07:57,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:07:57,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-10-24 15:07:57,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:07:57,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292095874] [2020-10-24 15:07:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:07:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:07:58,206 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 15:07:58,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292095874] [2020-10-24 15:07:58,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:07:58,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:07:58,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836301354] [2020-10-24 15:07:58,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:07:58,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:07:58,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:07:58,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:07:58,243 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-24 15:07:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:07:58,265 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-10-24 15:07:58,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:07:58,267 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 15:07:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:07:58,278 INFO L225 Difference]: With dead ends: 65 [2020-10-24 15:07:58,278 INFO L226 Difference]: Without dead ends: 30 [2020-10-24 15:07:58,281 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 15:07:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-24 15:07:58,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-24 15:07:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-24 15:07:58,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-10-24 15:07:58,328 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-10-24 15:07:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:07:58,329 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-24 15:07:58,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:07:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-10-24 15:07:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 15:07:58,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:07:58,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:07:58,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:07:58,331 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:07:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:07:58,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-10-24 15:07:58,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:07:58,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963450747] [2020-10-24 15:07:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:07:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:07:58,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:07:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:07:58,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:07:58,508 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:07:58,508 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:07:58,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:07:58,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:07:58 BoogieIcfgContainer [2020-10-24 15:07:58,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:07:58,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:07:58,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:07:58,544 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:07:58,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:07:57" (3/4) ... [2020-10-24 15:07:58,548 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:07:58,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:07:58,551 INFO L168 Benchmark]: Toolchain (without parser) took 1643.77 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.7 MB in the beginning and 42.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:58,552 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:07:58,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.23 ms. Allocated memory is still 54.5 MB. Free memory was 31.0 MB in the beginning and 33.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:58,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.46 ms. Allocated memory is still 54.5 MB. Free memory was 33.4 MB in the beginning and 31.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:07:58,555 INFO L168 Benchmark]: Boogie Preprocessor took 32.95 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 30.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:58,556 INFO L168 Benchmark]: RCFGBuilder took 447.95 ms. Allocated memory is still 54.5 MB. Free memory was 30.2 MB in the beginning and 24.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:58,557 INFO L168 Benchmark]: TraceAbstraction took 750.15 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 24.2 MB in the beginning and 42.7 MB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:07:58,557 INFO L168 Benchmark]: Witness Printer took 5.05 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 42.3 MB in the end (delta: 362.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:07:58,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.23 ms. Allocated memory is still 54.5 MB. Free memory was 31.0 MB in the beginning and 33.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.46 ms. Allocated memory is still 54.5 MB. Free memory was 33.4 MB in the beginning and 31.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.95 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 30.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 447.95 ms. Allocated memory is still 54.5 MB. Free memory was 30.2 MB in the beginning and 24.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 750.15 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 24.2 MB in the beginning and 42.7 MB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.05 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 42.3 MB in the end (delta: 362.7 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 32, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 15. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = 0.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L97] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0720.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 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=34occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 15:08:00,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:08:01,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:08:01,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:08:01,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:08:01,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:08:01,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:08:01,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:08:01,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:08:01,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:08:01,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:08:01,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:08:01,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:08:01,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:08:01,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:08:01,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:08:01,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:08:01,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:08:01,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:08:01,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:08:01,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:08:01,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:08:01,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:08:01,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:08:01,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:08:01,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:08:01,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:08:01,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:08:01,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:08:01,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:08:01,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:08:01,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:08:01,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:08:01,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:08:01,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:08:01,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:08:01,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:08:01,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:08:01,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:08:01,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:08:01,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:08:01,103 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 15:08:01,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:08:01,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:08:01,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:08:01,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:08:01,132 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:08:01,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:08:01,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:08:01,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:08:01,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:08:01,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:08:01,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:08:01,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:08:01,134 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:08:01,134 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:08:01,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:08:01,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:08:01,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:08:01,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:08:01,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:08:01,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:08:01,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:08:01,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:08:01,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:08:01,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:08:01,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:08:01,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:08:01,138 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:08:01,138 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:08:01,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:08:01,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:08:01,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:08:01,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-10-24 15:08:01,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:08:01,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:08:01,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:08:01,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:08:01,551 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:08:01,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 15:08:01,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/804067089/66b544ffb8814ea498da45e58d4c3300/FLAGe7f314b74 [2020-10-24 15:08:02,259 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:08:02,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 15:08:02,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/804067089/66b544ffb8814ea498da45e58d4c3300/FLAGe7f314b74 [2020-10-24 15:08:02,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/804067089/66b544ffb8814ea498da45e58d4c3300 [2020-10-24 15:08:02,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:08:02,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:08:02,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:02,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:08:02,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:08:02,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:02" (1/1) ... [2020-10-24 15:08:02,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598223f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:02, skipping insertion in model container [2020-10-24 15:08:02,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:02" (1/1) ... [2020-10-24 15:08:02,685 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:08:02,709 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:08:02,961 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:02,978 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:08:03,019 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:03,052 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:08:03,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:03 WrapperNode [2020-10-24 15:08:03,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:03,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:08:03,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:08:03,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:08:03,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:03" (1/1) ... [2020-10-24 15:08:03,080 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:08:03,081 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet8 which is not a global variable [2020-10-24 15:08:03,082 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:08:03,082 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet8 which is not a global variable [2020-10-24 15:08:03,086 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 15:08:03,094 INFO L168 Benchmark]: Toolchain (without parser) took 438.47 ms. Allocated memory is still 46.1 MB. Free memory was 24.3 MB in the beginning and 21.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:03,096 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 46.1 MB. Free memory was 27.1 MB in the beginning and 27.1 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:03,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.64 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 22.9 MB in the end (delta: 728.6 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:03,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.57 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 21.8 MB in the end (delta: 965.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:03,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 46.1 MB. Free memory was 27.1 MB in the beginning and 27.1 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.64 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 22.9 MB in the end (delta: 728.6 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.57 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 21.8 MB in the end (delta: 965.4 kB). Peak memory consumption was 2.1 MB. 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~nondet8 which is not a global variable - 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~nondet8 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...