./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1131b.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_1131b.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 0d2e2e25521cd2556b84d97e037726aee519fbda ................................................................................................................................................................................................................................................................................................................. 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_1131b.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 0d2e2e25521cd2556b84d97e037726aee519fbda .......................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:11:17,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:11:17,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:11:17,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:11:17,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:11:17,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:11:17,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:11:17,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:11:17,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:11:17,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:11:17,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:11:17,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:11:17,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:11:17,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:11:17,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:11:17,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:11:17,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:11:17,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:11:17,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:11:17,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:11:17,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:11:17,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:11:17,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:11:17,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:11:17,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:11:17,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:11:17,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:11:17,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:11:17,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:11:17,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:11:17,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:11:17,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:11:17,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:11:17,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:11:17,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:11:17,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:11:17,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:11:17,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:11:17,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:11:17,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:11:17,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:11:17,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 15:11:17,281 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:11:17,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:11:17,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:11:17,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:11:17,283 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:11:17,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:11:17,283 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:11:17,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:11:17,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:11:17,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:11:17,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:11:17,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:11:17,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:11:17,285 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:11:17,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:11:17,285 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:11:17,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:11:17,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:11:17,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:11:17,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:11:17,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:11:17,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:17,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:11:17,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:11:17,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:11:17,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:11:17,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:11:17,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:11:17,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:11:17,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d2e2e25521cd2556b84d97e037726aee519fbda [2020-10-24 15:11:17,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:11:17,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:11:17,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:11:17,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:11:17,699 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:11:17,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2020-10-24 15:11:17,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d7bd01b6/f8f924fa47ea4cd7b6272bf86f0454d5/FLAG4c8b7e151 [2020-10-24 15:11:18,344 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:11:18,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2020-10-24 15:11:18,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d7bd01b6/f8f924fa47ea4cd7b6272bf86f0454d5/FLAG4c8b7e151 [2020-10-24 15:11:18,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d7bd01b6/f8f924fa47ea4cd7b6272bf86f0454d5 [2020-10-24 15:11:18,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:11:18,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:11:18,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:18,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:11:18,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:11:18,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:18" (1/1) ... [2020-10-24 15:11:18,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ceb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:18, skipping insertion in model container [2020-10-24 15:11:18,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:18" (1/1) ... [2020-10-24 15:11:18,786 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:11:18,812 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:11:19,064 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:19,083 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:11:19,184 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:19,208 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:11:19,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19 WrapperNode [2020-10-24 15:11:19,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:19,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:19,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:11:19,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:11:19,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:19,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:11:19,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:11:19,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:11:19,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... [2020-10-24 15:11:19,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:11:19,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:11:19,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:11:19,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:11:19,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:11:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:11:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:11:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:11:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:11:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:11:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:11:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:11:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 15:11:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:11:20,055 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:11:20,055 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-24 15:11:20,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:20 BoogieIcfgContainer [2020-10-24 15:11:20,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:11:20,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:11:20,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:11:20,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:11:20,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:11:18" (1/3) ... [2020-10-24 15:11:20,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c100cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:20, skipping insertion in model container [2020-10-24 15:11:20,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:19" (2/3) ... [2020-10-24 15:11:20,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c100cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:20, skipping insertion in model container [2020-10-24 15:11:20,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:20" (3/3) ... [2020-10-24 15:11:20,069 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2020-10-24 15:11:20,084 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:11:20,091 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:11:20,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:11:20,135 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:11:20,135 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:11:20,135 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:11:20,136 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:11:20,136 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:11:20,136 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:11:20,136 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:11:20,136 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:11:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-24 15:11:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 15:11:20,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:20,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:20,166 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:20,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:20,174 INFO L82 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2020-10-24 15:11:20,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:20,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716340907] [2020-10-24 15:11:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:11:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:11:20,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716340907] [2020-10-24 15:11:20,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:11:20,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:11:20,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540302424] [2020-10-24 15:11:20,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:11:20,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:11:20,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:11:20,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:11:20,386 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2020-10-24 15:11:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:11:20,409 INFO L93 Difference]: Finished difference Result 93 states and 155 transitions. [2020-10-24 15:11:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:11:20,410 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-24 15:11:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:11:20,420 INFO L225 Difference]: With dead ends: 93 [2020-10-24 15:11:20,421 INFO L226 Difference]: Without dead ends: 43 [2020-10-24 15:11:20,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:11:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-24 15:11:20,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-24 15:11:20,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-24 15:11:20,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2020-10-24 15:11:20,465 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2020-10-24 15:11:20,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:11:20,466 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2020-10-24 15:11:20,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:11:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2020-10-24 15:11:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 15:11:20,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:20,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:20,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:11:20,467 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:20,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:20,469 INFO L82 PathProgramCache]: Analyzing trace with hash -794964373, now seen corresponding path program 1 times [2020-10-24 15:11:20,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:20,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812083367] [2020-10-24 15:11:20,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:11:20,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:11:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:11:20,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:11:20,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:11:20,850 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:11:20,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:11:20,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:11:20 BoogieIcfgContainer [2020-10-24 15:11:20,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:11:20,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:11:20,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:11:20,936 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:11:20,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:20" (3/4) ... [2020-10-24 15:11:20,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:11:20,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:11:20,948 INFO L168 Benchmark]: Toolchain (without parser) took 2237.46 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 31.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:20,950 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 21.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:20,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.21 ms. Allocated memory is still 44.0 MB. Free memory was 29.7 MB in the beginning and 27.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:20,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 44.0 MB. Free memory was 27.5 MB in the beginning and 25.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:20,953 INFO L168 Benchmark]: Boogie Preprocessor took 88.76 ms. Allocated memory is still 44.0 MB. Free memory was 25.4 MB in the beginning and 23.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:20,955 INFO L168 Benchmark]: RCFGBuilder took 683.66 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 28.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:20,957 INFO L168 Benchmark]: TraceAbstraction took 874.84 ms. Allocated memory is still 54.5 MB. Free memory was 27.4 MB in the beginning and 31.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:20,960 INFO L168 Benchmark]: Witness Printer took 5.82 ms. Allocated memory is still 54.5 MB. Free memory was 31.8 MB in the beginning and 31.5 MB in the end (delta: 313.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:20,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 21.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 466.21 ms. Allocated memory is still 44.0 MB. Free memory was 29.7 MB in the beginning and 27.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 44.0 MB. Free memory was 27.5 MB in the beginning and 25.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.76 ms. Allocated memory is still 44.0 MB. Free memory was 25.4 MB in the beginning and 23.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 683.66 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 28.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 874.84 ms. Allocated memory is still 54.5 MB. Free memory was 27.4 MB in the beginning and 31.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.82 ms. Allocated memory is still 54.5 MB. Free memory was 31.8 MB in the beginning and 31.5 MB in the end (delta: 313.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLE_SMToperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 136, overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L128] float x = __VERIFIER_nondet_float(); [L129] float y = -1.0f / 0.0f; [L111] __int32_t ix; VAL [one_fmod=1, Zero_fmod={9:0}] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); VAL [one_fmod=1, Zero_fmod={9:0}] [L131] COND TRUE isfinite_float(x) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [one_fmod=1, Zero_fmod={9:0}] [L3] __assert_fail("0", "float_req_bl_1131b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 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=48occurred 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, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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 15:11:23,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:11:23,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:11:23,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:11:23,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:11:23,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:11:23,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:11:23,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:11:23,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:11:23,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:11:23,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:11:23,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:11:23,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:11:23,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:11:23,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:11:23,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:11:23,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:11:23,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:11:23,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:11:23,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:11:23,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:11:23,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:11:23,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:11:23,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:11:23,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:11:23,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:11:23,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:11:23,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:11:23,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:11:23,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:11:23,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:11:23,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:11:23,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:11:23,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:11:23,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:11:23,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:11:23,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:11:23,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:11:23,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:11:23,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:11:23,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:11:23,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 15:11:23,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:11:23,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:11:23,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:11:23,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:11:23,790 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:11:23,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:11:23,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:11:23,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:11:23,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:11:23,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:11:23,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:11:23,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:11:23,792 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:11:23,792 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:11:23,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:11:23,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:11:23,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:11:23,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:11:23,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:11:23,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:11:23,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:11:23,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:11:23,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:23,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:11:23,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:11:23,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:11:23,795 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:11:23,795 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:11:23,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:11:23,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:11:23,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:11:23,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d2e2e25521cd2556b84d97e037726aee519fbda [2020-10-24 15:11:24,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:11:24,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:11:24,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:11:24,305 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:11:24,306 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:11:24,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2020-10-24 15:11:24,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64b8218a9/1337f401fc5341049e6862698fb02ab9/FLAG885f5f206 [2020-10-24 15:11:25,142 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:11:25,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2020-10-24 15:11:25,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64b8218a9/1337f401fc5341049e6862698fb02ab9/FLAG885f5f206 [2020-10-24 15:11:25,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64b8218a9/1337f401fc5341049e6862698fb02ab9 [2020-10-24 15:11:25,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:11:25,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:11:25,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:25,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:11:25,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:11:25,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779c0c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25, skipping insertion in model container [2020-10-24 15:11:25,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,528 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:11:25,569 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:11:25,811 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:25,832 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:11:25,878 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:25,903 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:11:25,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25 WrapperNode [2020-10-24 15:11:25,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:25,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:25,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:11:25,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:11:25,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,925 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:11:25,926 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet8 which is not a global variable [2020-10-24 15:11:25,926 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet9 which is not a global variable [2020-10-24 15:11:25,926 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet10 which is not a global variable [2020-10-24 15:11:25,927 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:11:25,927 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet8 which is not a global variable [2020-10-24 15:11:25,927 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet9 which is not a global variable [2020-10-24 15:11:25,927 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet10 which is not a global variable [2020-10-24 15:11:25,930 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner has thrown an exception: java.lang.AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.checkExistingDeclarationInformation(TypeChecker.java:340) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckLeftHandSide(TypeChecker.java:360) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckStatement(TypeChecker.java:781) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckBlock(TypeChecker.java:846) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processBody(TypeChecker.java:957) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processImplementation(TypeChecker.java:1033) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.process(TypeChecker.java:1120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:156) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 15:11:25,934 INFO L168 Benchmark]: Toolchain (without parser) took 466.37 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.9 MB in the beginning and 24.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:25,936 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 29.3 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:25,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.19 ms. Allocated memory is still 54.5 MB. Free memory was 38.8 MB in the beginning and 25.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:25,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.01 ms. Allocated memory is still 54.5 MB. Free memory was 25.8 MB in the beginning and 24.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:25,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 29.3 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 417.19 ms. Allocated memory is still 54.5 MB. Free memory was 38.8 MB in the beginning and 25.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.01 ms. Allocated memory is still 54.5 MB. Free memory was 25.8 MB in the beginning and 24.7 MB in the end (delta: 1.1 MB). 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~nondet8 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet9 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet10 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 - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet9 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet10 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...