./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 .......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:57:10,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:57:10,798 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:57:10,810 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:57:10,811 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:57:10,812 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:57:10,814 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:57:10,816 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:57:10,817 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:57:10,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:57:10,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:57:10,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:57:10,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:57:10,822 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:57:10,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:57:10,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:57:10,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:57:10,828 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:57:10,830 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:57:10,832 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:57:10,833 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:57:10,834 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:57:10,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:57:10,837 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:57:10,837 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:57:10,839 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:57:10,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:57:10,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:57:10,842 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:57:10,843 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:57:10,843 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:57:10,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:57:10,844 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:57:10,844 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:57:10,846 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:57:10,847 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:57:10,847 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:57:10,876 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:57:10,878 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:57:10,880 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:57:10,880 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:57:10,880 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:57:10,882 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:57:10,883 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:57:10,883 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:57:10,883 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:57:10,883 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:57:10,883 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:57:10,883 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:57:10,884 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:57:10,885 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:57:10,885 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:57:10,885 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:57:10,886 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:57:10,886 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:57:10,886 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:57:10,886 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:57:10,886 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:57:10,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:57:10,889 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:57:10,889 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:57:10,890 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:57:10,890 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:57:10,890 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:57:10,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:57:10,890 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/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(__VERIFIER_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 -> 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 [2019-01-12 07:57:10,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:57:10,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:57:10,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:57:10,984 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:57:10,985 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:57:10,986 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2019-01-12 07:57:11,049 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb3149f3/358c443b54ce4f329f9e4e0b41e31f0b/FLAG5e60dabdb [2019-01-12 07:57:11,473 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:57:11,474 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2019-01-12 07:57:11,480 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb3149f3/358c443b54ce4f329f9e4e0b41e31f0b/FLAG5e60dabdb [2019-01-12 07:57:11,854 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb3149f3/358c443b54ce4f329f9e4e0b41e31f0b [2019-01-12 07:57:11,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:57:11,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:57:11,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:11,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:57:11,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:57:11,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:11" (1/1) ... [2019-01-12 07:57:11,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a8869e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:11, skipping insertion in model container [2019-01-12 07:57:11,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:11" (1/1) ... [2019-01-12 07:57:11,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:57:11,902 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:57:12,137 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:12,143 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:57:12,181 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:12,204 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:57:12,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12 WrapperNode [2019-01-12 07:57:12,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:12,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:12,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:57:12,206 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:57:12,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:12,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:57:12,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:57:12,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:57:12,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... [2019-01-12 07:57:12,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:57:12,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:57:12,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:57:12,334 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:57:12,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-01-12 07:57:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 07:57:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-01-12 07:57:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 07:57:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:57:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:57:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 07:57:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 07:57:12,639 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:57:12,640 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 07:57:12,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:12 BoogieIcfgContainer [2019-01-12 07:57:12,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:57:12,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:57:12,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:57:12,647 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:57:12,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:57:11" (1/3) ... [2019-01-12 07:57:12,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67df1d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:12, skipping insertion in model container [2019-01-12 07:57:12,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:12" (2/3) ... [2019-01-12 07:57:12,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67df1d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:12, skipping insertion in model container [2019-01-12 07:57:12,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:12" (3/3) ... [2019-01-12 07:57:12,653 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2019-01-12 07:57:12,664 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:57:12,676 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:57:12,706 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:57:12,750 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:57:12,752 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:57:12,752 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:57:12,752 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:57:12,753 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:57:12,753 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:57:12,753 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:57:12,753 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:57:12,753 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:57:12,777 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-01-12 07:57:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-12 07:57:12,785 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:57:12,786 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-12 07:57:12,789 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:57:12,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:57:12,796 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-01-12 07:57:12,799 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 07:57:12,799 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 07:57:12,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:57:12,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:57:12,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:57:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:12,977 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:57:13,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:57:13 BoogieIcfgContainer [2019-01-12 07:57:13,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:57:13,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:57:13,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:57:13,008 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:57:13,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:12" (3/4) ... [2019-01-12 07:57:13,013 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 07:57:13,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:57:13,014 INFO L168 Benchmark]: Toolchain (without parser) took 1155.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 64.5 MB). Free memory was 950.0 MB in the beginning and 1.0 GB in the end (delta: -73.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:13,017 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:13,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.53 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:13,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.52 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:13,020 INFO L168 Benchmark]: Boogie Preprocessor took 87.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 64.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -119.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:13,021 INFO L168 Benchmark]: RCFGBuilder took 307.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:13,022 INFO L168 Benchmark]: TraceAbstraction took 364.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:13,023 INFO L168 Benchmark]: Witness Printer took 5.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:13,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 343.53 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.52 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 64.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -119.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 307.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 364.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22, overapproximation of bitwiseXor at line 21. Possible FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L17] union u x, y; [L18] x.i[0] = 0x43300000 [L19] EXPR x.i[0] [L19] y.i[0] = x.i[0] [L20] x.i[1] = 0x80000000 [L21] EXPR x.i[1] [L21] y.i[1] = i ^ x.i[1] [L22] EXPR y.d [L22] EXPR x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] return y.d - x.d; [L33] r = cast(a) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.24-0ed9222-m [2019-01-12 07:57:15,364 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:57:15,365 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:57:15,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:57:15,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:57:15,379 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:57:15,381 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:57:15,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:57:15,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:57:15,386 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:57:15,387 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:57:15,387 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:57:15,388 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:57:15,390 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:57:15,391 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:57:15,392 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:57:15,393 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:57:15,395 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:57:15,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:57:15,400 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:57:15,401 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:57:15,402 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:57:15,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:57:15,405 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:57:15,406 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:57:15,407 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:57:15,408 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:57:15,409 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:57:15,410 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:57:15,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:57:15,412 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:57:15,413 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:57:15,413 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:57:15,413 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:57:15,415 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:57:15,416 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:57:15,416 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:57:15,441 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:57:15,442 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:57:15,443 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:57:15,443 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:57:15,443 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:57:15,444 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:57:15,444 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:57:15,445 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:57:15,445 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:57:15,445 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:57:15,445 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:57:15,445 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:57:15,446 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:57:15,447 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:57:15,447 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:57:15,447 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:57:15,447 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:57:15,447 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:57:15,448 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:57:15,448 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:57:15,448 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:57:15,448 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:57:15,448 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:57:15,449 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:57:15,451 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:57:15,451 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:57:15,452 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:57:15,452 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:57:15,453 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:57:15,453 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:57:15,453 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/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(__VERIFIER_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 -> 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 [2019-01-12 07:57:15,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:57:15,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:57:15,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:57:15,526 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:57:15,526 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:57:15,527 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2019-01-12 07:57:15,591 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81c22cb9/9eb34ee1b02f4560834c0c2d32cb17a5/FLAGaed1630ab [2019-01-12 07:57:16,089 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:57:16,092 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2019-01-12 07:57:16,101 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81c22cb9/9eb34ee1b02f4560834c0c2d32cb17a5/FLAGaed1630ab [2019-01-12 07:57:16,396 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81c22cb9/9eb34ee1b02f4560834c0c2d32cb17a5 [2019-01-12 07:57:16,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:57:16,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:57:16,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:16,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:57:16,406 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:57:16,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ea6e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16, skipping insertion in model container [2019-01-12 07:57:16,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:57:16,443 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:57:16,625 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:16,633 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:57:16,661 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:16,697 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:57:16,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16 WrapperNode [2019-01-12 07:57:16,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:16,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:16,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:57:16,700 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:57:16,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:16,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:57:16,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:57:16,746 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:57:16,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... [2019-01-12 07:57:16,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:57:16,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:57:16,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:57:16,848 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:57:16,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-01-12 07:57:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-01-12 07:57:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 07:57:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-12 07:57:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:57:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:57:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 07:57:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-12 07:57:17,263 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:57:17,263 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 07:57:17,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:17 BoogieIcfgContainer [2019-01-12 07:57:17,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:57:17,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:57:17,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:57:17,279 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:57:17,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:57:16" (1/3) ... [2019-01-12 07:57:17,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10aeb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:17, skipping insertion in model container [2019-01-12 07:57:17,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:16" (2/3) ... [2019-01-12 07:57:17,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10aeb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:17, skipping insertion in model container [2019-01-12 07:57:17,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:17" (3/3) ... [2019-01-12 07:57:17,285 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2019-01-12 07:57:17,297 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:57:17,308 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:57:17,330 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:57:17,377 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:57:17,378 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:57:17,378 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:57:17,378 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:57:17,378 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:57:17,378 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:57:17,378 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:57:17,378 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:57:17,379 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:57:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-01-12 07:57:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-12 07:57:17,409 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:57:17,410 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-12 07:57:17,413 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:57:17,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:57:17,422 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-01-12 07:57:17,428 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:57:17,430 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-01-12 07:57:17,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:57:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:17,769 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:57:17,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:57:17 BoogieIcfgContainer [2019-01-12 07:57:17,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:57:17,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:57:17,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:57:17,794 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:57:17,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:17" (3/4) ... [2019-01-12 07:57:17,798 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 07:57:17,843 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:57:17,844 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:57:17,845 INFO L168 Benchmark]: Toolchain (without parser) took 1445.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -117.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:17,847 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:17,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:17,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.82 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 937.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:17,850 INFO L168 Benchmark]: Boogie Preprocessor took 101.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:17,851 INFO L168 Benchmark]: RCFGBuilder took 417.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:17,854 INFO L168 Benchmark]: TraceAbstraction took 526.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:17,854 INFO L168 Benchmark]: Witness Printer took 49.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:17,860 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.82 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 937.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 417.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 526.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 49.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L17] union u x, y; [L18] x.i[0] = 0x43300000 [L19] EXPR x.i[0] [L19] y.i[0] = x.i[0] [L20] x.i[1] = 0x80000000 [L21] EXPR x.i[1] [L21] y.i[1] = i ^ x.i[1] [L22] EXPR y.d [L22] EXPR x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] return y.d - x.d; [L33] r = cast(a) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...