./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -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 4e4f711715c9ba9b74051d365fc69961816436d0 ................................................................................................................................................................................................................... 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/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -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 4e4f711715c9ba9b74051d365fc69961816436d0 ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:40:09,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:09,916 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:09,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:09,931 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:09,932 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:09,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:09,935 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:09,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:09,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:09,939 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:09,940 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:09,940 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:09,942 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:09,943 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:09,944 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:09,945 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:09,947 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:09,949 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:09,951 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:09,952 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:09,954 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:09,957 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:09,957 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:09,957 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:09,959 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:09,961 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:09,965 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:09,965 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:09,966 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:09,971 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:09,972 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:09,972 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:09,972 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:09,973 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:09,977 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:09,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:40:10,002 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:10,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:10,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:10,004 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:10,004 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:10,004 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:10,004 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:10,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:40:10,005 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:10,005 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:10,005 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:10,005 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:10,005 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:10,005 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:10,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:10,006 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:10,006 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:10,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:10,006 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:10,006 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:10,007 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:10,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:10,007 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:10,007 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:10,007 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:10,007 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:40:10,008 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:10,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:40:10,008 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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-12-31 02:40:10,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:10,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:10,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:10,076 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:10,076 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:10,077 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-12-31 02:40:10,148 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab0225b0/accc96fb416949da9fc6bb06a015b7f5/FLAGe285b5c3e [2018-12-31 02:40:10,599 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:10,600 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-12-31 02:40:10,606 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab0225b0/accc96fb416949da9fc6bb06a015b7f5/FLAGe285b5c3e [2018-12-31 02:40:10,974 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab0225b0/accc96fb416949da9fc6bb06a015b7f5 [2018-12-31 02:40:10,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:10,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:10,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:10,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:10,988 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:10,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:10" (1/1) ... [2018-12-31 02:40:10,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763dbe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:10, skipping insertion in model container [2018-12-31 02:40:10,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:10" (1/1) ... [2018-12-31 02:40:11,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:40:11,026 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:40:11,256 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:11,263 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:40:11,283 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:11,301 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:40:11,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11 WrapperNode [2018-12-31 02:40:11,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:11,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:11,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:40:11,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:40:11,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:11,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:40:11,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:40:11,352 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:40:11,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (1/1) ... [2018-12-31 02:40:11,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:40:11,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:40:11,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:40:11,378 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:40:11,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (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 [2018-12-31 02:40:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:40:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:40:11,755 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:40:11,756 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:40:11,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:11 BoogieIcfgContainer [2018-12-31 02:40:11,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:40:11,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:40:11,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:40:11,763 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:40:11,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:40:10" (1/3) ... [2018-12-31 02:40:11,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637257b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:11, skipping insertion in model container [2018-12-31 02:40:11,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:11" (2/3) ... [2018-12-31 02:40:11,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637257b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:11, skipping insertion in model container [2018-12-31 02:40:11,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:11" (3/3) ... [2018-12-31 02:40:11,770 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-12-31 02:40:11,781 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:40:11,792 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:40:11,812 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:40:11,855 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:40:11,856 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:40:11,856 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:40:11,857 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:40:11,857 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:40:11,857 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:40:11,857 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:40:11,857 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:40:11,858 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:40:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-31 02:40:11,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:40:11,882 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:11,883 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:40:11,886 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:11,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:11,894 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:40:11,897 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:40:11,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:40:11,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:40:11,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:11,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:40:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:40:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:40:11,995 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:40:12,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:40:12 BoogieIcfgContainer [2018-12-31 02:40:12,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:40:12,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:40:12,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:40:12,012 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:40:12,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:11" (3/4) ... [2018-12-31 02:40:12,017 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:40:12,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:40:12,018 INFO L168 Benchmark]: Toolchain (without parser) took 1038.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -142.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:12,021 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-31 02:40:12,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.63 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:12,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:12,023 INFO L168 Benchmark]: Boogie Preprocessor took 26.07 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:12,024 INFO L168 Benchmark]: RCFGBuilder took 378.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:12,025 INFO L168 Benchmark]: TraceAbstraction took 252.75 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:12,026 INFO L168 Benchmark]: Witness Printer took 5.58 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. [2018-12-31 02:40:12,033 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 321.63 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 46.83 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.07 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 378.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 252.75 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.58 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: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. UNSAFE Result, 0.1s 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=7occurred 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, 3 NumberOfCodeBlocks, 3 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 0.1.24-2e94e6a [2018-12-31 02:40:14,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:14,490 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:14,507 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:14,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:14,510 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:14,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:14,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:14,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:14,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:14,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:14,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:14,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:14,520 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:14,521 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:14,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:14,523 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:14,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:14,532 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:14,536 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:14,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:14,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:14,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:14,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:14,546 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:14,547 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:14,548 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:14,549 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:14,549 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:14,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:14,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:14,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:14,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:14,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:14,553 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:14,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:14,553 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:40:14,569 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:14,569 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:14,571 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:14,571 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:14,571 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:14,571 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:14,572 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:14,572 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:14,572 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:14,572 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:14,572 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:14,572 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:14,573 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:40:14,573 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:40:14,573 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:14,573 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:14,573 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:14,573 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:14,574 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:14,574 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:14,574 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:14,574 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:14,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:14,575 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:14,575 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:14,575 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:14,576 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:40:14,576 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:14,577 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:40:14,577 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:40:14,577 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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-12-31 02:40:14,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:14,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:14,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:14,676 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:14,677 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:14,678 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-12-31 02:40:14,755 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d7e2163/ebef4dd248be40d783ab124f5ef22835/FLAGadc74ddfb [2018-12-31 02:40:15,294 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:15,295 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-12-31 02:40:15,301 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d7e2163/ebef4dd248be40d783ab124f5ef22835/FLAGadc74ddfb [2018-12-31 02:40:15,634 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d7e2163/ebef4dd248be40d783ab124f5ef22835 [2018-12-31 02:40:15,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:15,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:15,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:15,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:15,644 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:15,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc52f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15, skipping insertion in model container [2018-12-31 02:40:15,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:40:15,675 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:40:15,864 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:15,877 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:40:15,893 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:15,907 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:40:15,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15 WrapperNode [2018-12-31 02:40:15,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:15,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:15,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:40:15,909 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:40:15,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:15,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:40:15,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:40:15,949 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:40:15,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (1/1) ... [2018-12-31 02:40:15,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:40:15,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:40:15,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:40:15,979 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:40:15,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (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 [2018-12-31 02:40:16,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:40:16,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:40:16,277 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:40:16,277 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:40:16,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:16 BoogieIcfgContainer [2018-12-31 02:40:16,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:40:16,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:40:16,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:40:16,283 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:40:16,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:40:15" (1/3) ... [2018-12-31 02:40:16,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2809c237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:16, skipping insertion in model container [2018-12-31 02:40:16,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:15" (2/3) ... [2018-12-31 02:40:16,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2809c237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:16, skipping insertion in model container [2018-12-31 02:40:16,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:16" (3/3) ... [2018-12-31 02:40:16,287 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-12-31 02:40:16,296 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:40:16,303 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:40:16,318 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:40:16,351 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:40:16,351 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:40:16,352 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:40:16,352 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:40:16,352 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:40:16,352 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:40:16,352 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:40:16,352 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:40:16,353 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:40:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-31 02:40:16,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:40:16,375 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:16,376 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:40:16,378 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:16,385 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:40:16,390 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:16,391 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) [2018-12-31 02:40:16,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:16,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:16,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 02:40:16,538 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:16,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:16,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:40:16,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:16,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:16,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:16,574 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-12-31 02:40:16,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:16,600 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2018-12-31 02:40:16,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:16,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-31 02:40:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:16,614 INFO L225 Difference]: With dead ends: 10 [2018-12-31 02:40:16,614 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:40:16,618 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:16,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:40:16,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:40:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:40:16,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:40:16,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-31 02:40:16,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:16,657 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:40:16,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:40:16,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:40:16,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:40:16,680 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:40:16,680 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:40:16,680 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:40:16,682 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-12-31 02:40:16,682 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-12-31 02:40:16,682 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-12-31 02:40:16,682 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 9) no Hoare annotation was computed. [2018-12-31 02:40:16,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:40:16 BoogieIcfgContainer [2018-12-31 02:40:16,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:40:16,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:40:16,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:40:16,701 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:40:16,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:16" (3/4) ... [2018-12-31 02:40:16,714 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:40:16,745 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 02:40:16,746 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:40:16,796 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:40:16,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:40:16,798 INFO L168 Benchmark]: Toolchain (without parser) took 1159.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:16,801 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-31 02:40:16,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:16,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.06 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:16,804 INFO L168 Benchmark]: Boogie Preprocessor took 30.02 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:16,805 INFO L168 Benchmark]: RCFGBuilder took 299.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:16,807 INFO L168 Benchmark]: TraceAbstraction took 417.04 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:16,808 INFO L168 Benchmark]: Witness Printer took 99.92 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. [2018-12-31 02:40:16,816 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 267.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 40.06 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.02 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 299.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 417.04 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Witness Printer took 99.92 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: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...