./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/square_5_true-unreach-call_true-termination.i --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/floats-cdfpl/square_5_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 90d9d5110e72847827a8a4de1ec9da2f4a9a1545 ...................................................................................................................................................................................................................... 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-cdfpl/square_5_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 90d9d5110e72847827a8a4de1ec9da2f4a9a1545 ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:48:22,921 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:48:22,923 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:48:22,936 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:48:22,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:48:22,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:48:22,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:48:22,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:48:22,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:48:22,944 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:48:22,945 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:48:22,946 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:48:22,947 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:48:22,948 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:48:22,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:48:22,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:48:22,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:48:22,953 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:48:22,956 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:48:22,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:48:22,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:48:22,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:48:22,962 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:48:22,963 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:48:22,963 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:48:22,964 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:48:22,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:48:22,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:48:22,967 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:48:22,969 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:48:22,969 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:48:22,970 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:48:22,970 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:48:22,971 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:48:22,972 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:48:22,973 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:48:22,974 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:48:22,989 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:48:22,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:48:22,991 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:48:22,991 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:48:22,992 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:48:22,992 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:48:22,992 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:48:22,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:48:22,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:48:22,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:48:22,993 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:48:22,993 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:48:22,993 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:48:22,993 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:48:22,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:48:22,993 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:48:22,994 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:48:22,995 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:48:22,996 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:48:22,996 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:48:22,996 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:48:22,996 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:48:22,996 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:48:22,996 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:48:22,997 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:48:22,998 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:48:22,998 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:48:22,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:48:22,998 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 -> 90d9d5110e72847827a8a4de1ec9da2f4a9a1545 [2019-01-12 07:48:23,035 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:48:23,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:48:23,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:48:23,056 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:48:23,057 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:48:23,058 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_5_true-unreach-call_true-termination.i [2019-01-12 07:48:23,118 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc88675b/459c814618284e7383074fa703a54f0a/FLAG56c53484a [2019-01-12 07:48:23,599 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:48:23,600 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_5_true-unreach-call_true-termination.i [2019-01-12 07:48:23,606 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc88675b/459c814618284e7383074fa703a54f0a/FLAG56c53484a [2019-01-12 07:48:23,964 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc88675b/459c814618284e7383074fa703a54f0a [2019-01-12 07:48:23,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:48:23,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:48:23,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:48:23,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:48:23,976 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:48:23,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:48:23" (1/1) ... [2019-01-12 07:48:23,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8264d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:23, skipping insertion in model container [2019-01-12 07:48:23,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:48:23" (1/1) ... [2019-01-12 07:48:23,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:48:24,007 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:48:24,176 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:48:24,182 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:48:24,200 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:48:24,216 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:48:24,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24 WrapperNode [2019-01-12 07:48:24,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:48:24,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:48:24,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:48:24,219 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:48:24,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:48:24,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:48:24,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:48:24,262 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:48:24,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (1/1) ... [2019-01-12 07:48:24,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:48:24,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:48:24,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:48:24,293 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:48:24,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (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 07:48:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:48:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:48:24,590 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:48:24,591 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 07:48:24,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:48:24 BoogieIcfgContainer [2019-01-12 07:48:24,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:48:24,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:48:24,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:48:24,597 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:48:24,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:48:23" (1/3) ... [2019-01-12 07:48:24,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e120d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:48:24, skipping insertion in model container [2019-01-12 07:48:24,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:24" (2/3) ... [2019-01-12 07:48:24,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e120d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:48:24, skipping insertion in model container [2019-01-12 07:48:24,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:48:24" (3/3) ... [2019-01-12 07:48:24,602 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5_true-unreach-call_true-termination.i [2019-01-12 07:48:24,613 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:48:24,620 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:48:24,635 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:48:24,667 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:48:24,668 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:48:24,668 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:48:24,669 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:48:24,669 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:48:24,669 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:48:24,669 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:48:24,669 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:48:24,669 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:48:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-01-12 07:48:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-12 07:48:24,691 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:48:24,692 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-12 07:48:24,694 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:48:24,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:48:24,701 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-01-12 07:48:24,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 07:48:24,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 07:48:24,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:48:24,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:48:24,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:48:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:48:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:48:24,806 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:48:24,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:48:24 BoogieIcfgContainer [2019-01-12 07:48:24,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:48:24,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:48:24,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:48:24,823 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:48:24,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:48:24" (3/4) ... [2019-01-12 07:48:24,827 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 07:48:24,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:48:24,828 INFO L168 Benchmark]: Toolchain (without parser) took 858.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:48:24,831 INFO L168 Benchmark]: CDTParser took 0.21 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 07:48:24,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.92 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. [2019-01-12 07:48:24,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.93 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. [2019-01-12 07:48:24,833 INFO L168 Benchmark]: Boogie Preprocessor took 30.20 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. [2019-01-12 07:48:24,833 INFO L168 Benchmark]: RCFGBuilder took 299.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:48:24,835 INFO L168 Benchmark]: TraceAbstraction took 228.81 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-01-12 07:48:24,836 INFO L168 Benchmark]: Witness Printer took 5.30 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 07:48:24,840 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 245.92 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 42.93 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 30.20 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 299.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 228.81 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.30 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L14] COND TRUE !(result >= 0.0f && result < 1.3985f) [L15] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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 0.1.24-0ed9222-m [2019-01-12 07:48:27,186 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:48:27,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:48:27,201 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:48:27,201 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:48:27,202 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:48:27,204 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:48:27,205 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:48:27,207 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:48:27,208 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:48:27,209 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:48:27,209 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:48:27,210 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:48:27,211 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:48:27,213 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:48:27,213 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:48:27,214 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:48:27,216 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:48:27,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:48:27,220 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:48:27,221 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:48:27,222 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:48:27,225 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:48:27,225 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:48:27,225 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:48:27,226 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:48:27,227 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:48:27,228 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:48:27,229 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:48:27,230 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:48:27,230 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:48:27,231 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:48:27,231 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:48:27,231 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:48:27,232 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:48:27,233 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:48:27,233 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:48:27,250 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:48:27,250 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:48:27,251 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:48:27,251 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:48:27,252 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:48:27,252 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:48:27,252 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:48:27,252 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:48:27,252 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:48:27,253 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:48:27,253 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:48:27,253 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:48:27,253 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:48:27,253 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:48:27,253 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:48:27,254 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:48:27,254 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:48:27,254 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:48:27,254 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:48:27,254 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:48:27,255 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:48:27,255 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:48:27,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:48:27,255 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:48:27,255 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:48:27,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:48:27,256 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:48:27,256 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:48:27,256 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:48:27,256 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:48:27,256 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 -> 90d9d5110e72847827a8a4de1ec9da2f4a9a1545 [2019-01-12 07:48:27,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:48:27,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:48:27,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:48:27,334 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:48:27,335 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:48:27,335 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_5_true-unreach-call_true-termination.i [2019-01-12 07:48:27,401 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e225f74c/6fcf5351571542b78e26a108a217b36b/FLAGeec3e6009 [2019-01-12 07:48:27,851 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:48:27,851 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_5_true-unreach-call_true-termination.i [2019-01-12 07:48:27,861 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e225f74c/6fcf5351571542b78e26a108a217b36b/FLAGeec3e6009 [2019-01-12 07:48:28,199 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e225f74c/6fcf5351571542b78e26a108a217b36b [2019-01-12 07:48:28,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:48:28,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:48:28,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:48:28,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:48:28,209 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:48:28,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d57bdec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28, skipping insertion in model container [2019-01-12 07:48:28,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:48:28,239 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:48:28,459 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:48:28,469 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:48:28,490 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:48:28,508 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:48:28,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28 WrapperNode [2019-01-12 07:48:28,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:48:28,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:48:28,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:48:28,510 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:48:28,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:48:28,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:48:28,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:48:28,551 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:48:28,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (1/1) ... [2019-01-12 07:48:28,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:48:28,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:48:28,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:48:28,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:48:28,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (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 07:48:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:48:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:48:30,943 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:48:30,944 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 07:48:30,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:48:30 BoogieIcfgContainer [2019-01-12 07:48:30,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:48:30,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:48:30,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:48:30,949 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:48:30,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:48:28" (1/3) ... [2019-01-12 07:48:30,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210d1ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:48:30, skipping insertion in model container [2019-01-12 07:48:30,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:48:28" (2/3) ... [2019-01-12 07:48:30,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210d1ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:48:30, skipping insertion in model container [2019-01-12 07:48:30,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:48:30" (3/3) ... [2019-01-12 07:48:30,953 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5_true-unreach-call_true-termination.i [2019-01-12 07:48:30,964 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:48:30,973 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:48:30,988 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:48:31,020 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:48:31,021 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:48:31,021 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:48:31,021 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:48:31,021 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:48:31,022 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:48:31,022 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:48:31,022 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:48:31,023 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:48:31,036 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-01-12 07:48:31,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-12 07:48:31,042 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:48:31,044 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-12 07:48:31,046 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:48:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:48:31,053 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-01-12 07:48:31,058 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:48:31,058 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) [2019-01-12 07:48:31,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-01-12 07:58:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:58:25,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:58:27,716 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) c_ULTIMATE.start_main_~result~0)))) is different from false [2019-01-12 07:58:29,803 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) c_ULTIMATE.start_main_~result~0)))) is different from true [2019-01-12 07:58:42,435 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.lt v_prenex_2 .cse0) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_2) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_2) v_prenex_2) v_prenex_2) v_prenex_2)) (_ +zero 8 24))) (fp.geq v_prenex_2 (_ +zero 8 24))))) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 2797.0 2000.0)))) (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse1))))) is different from false [2019-01-12 07:58:44,541 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.lt v_prenex_2 .cse0) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_2) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_2) v_prenex_2) v_prenex_2) v_prenex_2)) (_ +zero 8 24))) (fp.geq v_prenex_2 (_ +zero 8 24))))) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 2797.0 2000.0)))) (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse1))))) is different from true [2019-01-12 07:58:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:58:44,547 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:58:44,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:58:44,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:58:44,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 07:58:44,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 07:58:44,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2019-01-12 07:58:44,595 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-01-12 07:58:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:58:44,609 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-01-12 07:58:44,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 07:58:44,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-12 07:58:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:58:44,617 INFO L225 Difference]: With dead ends: 13 [2019-01-12 07:58:44,617 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 07:58:44,621 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2019-01-12 07:58:44,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 07:58:44,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 07:58:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 07:58:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 07:58:44,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-12 07:58:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:58:44,647 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 07:58:44,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 07:58:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 07:58:44,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 07:58:44,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 07:58:44,706 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 07:58:44,706 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 07:58:44,706 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 07:58:44,706 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 07:58:44,706 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2019-01-12 07:58:44,707 INFO L451 ceAbstractionStarter]: At program point L17(lines 4 18) the Hoare annotation is: true [2019-01-12 07:58:44,707 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-01-12 07:58:44,707 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2019-01-12 07:58:44,707 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2019-01-12 07:58:44,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:58:44 BoogieIcfgContainer [2019-01-12 07:58:44,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:58:44,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:58:44,715 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:58:44,715 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:58:44,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:48:30" (3/4) ... [2019-01-12 07:58:44,721 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 07:58:44,733 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 07:58:44,733 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 07:58:44,733 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-12 07:58:44,781 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:58:44,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:58:44,782 INFO L168 Benchmark]: Toolchain (without parser) took 616579.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -125.2 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:44,785 INFO L168 Benchmark]: CDTParser took 0.17 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 07:58:44,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.56 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. [2019-01-12 07:58:44,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.46 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. [2019-01-12 07:58:44,786 INFO L168 Benchmark]: Boogie Preprocessor took 28.18 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:44,787 INFO L168 Benchmark]: RCFGBuilder took 2365.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:44,788 INFO L168 Benchmark]: TraceAbstraction took 613768.44 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:44,789 INFO L168 Benchmark]: Witness Printer took 66.58 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. [2019-01-12 07:58:44,794 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 303.56 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 41.46 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 28.18 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2365.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 613768.44 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * Witness Printer took 66.58 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: - PositiveResult [Line: 15]: 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 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 613.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 594.1s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 2 QuantifiedInterpolants, 603 SizeOfPredicates, 3 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 4 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...