./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_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-simp6_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 8ccc35369aa7fc4059706b8166915b481ecdc09d ..................................................................................................................................................................................................................... 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-simp6_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 8ccc35369aa7fc4059706b8166915b481ecdc09d ................................................................................................................................................................................................................................................................................................................................................ 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 02:40:30,665 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:30,667 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:30,679 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:30,680 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:30,681 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:30,682 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:30,685 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:30,686 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:30,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:30,688 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:30,689 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:30,690 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:30,691 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:30,692 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:30,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:30,693 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:30,695 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:30,697 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:30,699 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:30,700 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:30,701 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:30,704 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:30,704 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:30,704 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:30,705 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:30,706 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:30,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:30,708 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:30,709 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:30,709 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:30,710 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:30,710 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:30,710 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:30,711 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:30,712 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:30,712 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:40:30,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:30,728 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:30,730 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:30,730 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:30,730 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:30,730 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:30,730 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:30,731 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:40:30,731 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:30,731 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:30,731 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:30,731 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:30,732 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:30,732 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:30,732 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:30,732 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:30,732 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:30,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:30,733 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:30,733 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:30,733 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:30,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:30,733 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:30,734 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:30,734 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:30,734 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:40:30,734 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:30,734 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:40:30,734 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-12-31 02:40:30,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:30,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:30,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:30,791 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:30,791 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:30,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-31 02:40:30,861 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec33fd7f/c90b39362c334774873c2f18bc27341b/FLAG305674f30 [2018-12-31 02:40:31,353 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:31,354 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-31 02:40:31,360 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec33fd7f/c90b39362c334774873c2f18bc27341b/FLAG305674f30 [2018-12-31 02:40:31,703 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec33fd7f/c90b39362c334774873c2f18bc27341b [2018-12-31 02:40:31,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:31,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:31,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:31,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:31,714 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:31,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:31" (1/1) ... [2018-12-31 02:40:31,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74386c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:31, skipping insertion in model container [2018-12-31 02:40:31,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:31" (1/1) ... [2018-12-31 02:40:31,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:40:31,749 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:40:31,958 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:31,964 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:40:31,989 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:32,006 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:40:32,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32 WrapperNode [2018-12-31 02:40:32,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:32,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:32,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:40:32,008 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:40:32,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:32,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:40:32,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:40:32,046 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:40:32,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (1/1) ... [2018-12-31 02:40:32,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:40:32,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:40:32,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:40:32,067 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:40:32,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (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 02:40:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:40:32,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:40:32,384 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:40:32,385 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-31 02:40:32,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:32 BoogieIcfgContainer [2018-12-31 02:40:32,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:40:32,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:40:32,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:40:32,390 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:40:32,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:40:31" (1/3) ... [2018-12-31 02:40:32,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac57329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:32, skipping insertion in model container [2018-12-31 02:40:32,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:32" (2/3) ... [2018-12-31 02:40:32,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac57329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:32, skipping insertion in model container [2018-12-31 02:40:32,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:32" (3/3) ... [2018-12-31 02:40:32,396 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-12-31 02:40:32,406 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:40:32,413 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 02:40:32,428 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 02:40:32,461 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:40:32,462 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:40:32,462 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:40:32,462 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:40:32,462 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:40:32,462 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:40:32,462 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:40:32,462 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:40:32,463 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:40:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-31 02:40:32,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:40:32,486 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:32,487 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:40:32,490 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:32,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:32,496 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:40:32,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:40:32,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:40:32,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:40:32,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:32,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:40:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:40:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:40:32,602 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:40:32,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:40:32 BoogieIcfgContainer [2018-12-31 02:40:32,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:40:32,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:40:32,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:40:32,619 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:40:32,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:32" (3/4) ... [2018-12-31 02:40:32,624 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:40:32,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:40:32,625 INFO L168 Benchmark]: Toolchain (without parser) took 917.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:32,627 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. [2018-12-31 02:40:32,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.20 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:32,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.32 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:32,630 INFO L168 Benchmark]: Boogie Preprocessor took 20.69 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:32,630 INFO L168 Benchmark]: RCFGBuilder took 318.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:32,632 INFO L168 Benchmark]: TraceAbstraction took 231.89 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:32,632 INFO L168 Benchmark]: Witness Printer took 5.01 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 02:40:32,639 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 297.20 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 38.32 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.69 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 231.89 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.01 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L5] float f1=0x1.000000p-1f; [L6] float f2=0x1.fffffep-126f; [L8] float res = f1 * f2; [L10] COND TRUE !(res == 0x1.0p-126f) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 3 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=15occurred 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 02:40:35,149 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:35,151 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:35,165 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:35,167 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:35,168 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:35,172 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:35,175 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:35,177 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:35,180 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:35,183 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:35,184 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:35,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:35,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:35,197 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:35,199 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:35,201 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:35,205 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:35,211 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:35,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:35,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:35,222 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:35,226 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:35,229 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:35,229 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:35,230 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:35,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:35,236 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:35,236 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:35,237 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:35,238 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:35,242 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:35,242 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:35,242 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:35,245 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:35,247 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:35,248 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:40:35,277 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:35,278 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:35,280 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:35,281 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:35,282 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:35,282 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:35,282 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:35,283 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:35,284 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:35,284 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:35,284 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:35,284 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:35,284 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:40:35,285 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:40:35,285 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:35,286 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:35,286 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:35,286 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:35,286 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:35,288 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:35,288 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:35,289 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:35,289 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:35,289 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:35,289 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:35,289 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:35,289 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:40:35,291 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:35,291 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:40:35,292 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:40:35,292 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-12-31 02:40:35,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:35,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:35,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:35,352 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:35,352 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:35,353 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-31 02:40:35,424 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2bb66b9/900d397282de4d53a6745b3e5aefc27a/FLAG36cd4c0cd [2018-12-31 02:40:35,893 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:35,894 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-31 02:40:35,900 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2bb66b9/900d397282de4d53a6745b3e5aefc27a/FLAG36cd4c0cd [2018-12-31 02:40:36,271 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2bb66b9/900d397282de4d53a6745b3e5aefc27a [2018-12-31 02:40:36,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:36,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:36,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:36,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:36,283 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:36,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b3cc8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36, skipping insertion in model container [2018-12-31 02:40:36,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:40:36,319 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:40:36,509 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:36,518 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:40:36,551 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:36,570 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:40:36,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36 WrapperNode [2018-12-31 02:40:36,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:36,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:36,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:40:36,572 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:40:36,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:36,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:40:36,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:40:36,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:40:36,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (1/1) ... [2018-12-31 02:40:36,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:40:36,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:40:36,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:40:36,661 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:40:36,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (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 02:40:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:40:36,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:40:36,998 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:40:36,999 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-31 02:40:36,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:36 BoogieIcfgContainer [2018-12-31 02:40:37,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:40:37,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:40:37,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:40:37,004 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:40:37,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:40:36" (1/3) ... [2018-12-31 02:40:37,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cac59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:37, skipping insertion in model container [2018-12-31 02:40:37,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:36" (2/3) ... [2018-12-31 02:40:37,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cac59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:37, skipping insertion in model container [2018-12-31 02:40:37,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:36" (3/3) ... [2018-12-31 02:40:37,008 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-12-31 02:40:37,021 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:40:37,031 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 02:40:37,061 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 02:40:37,104 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:40:37,104 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:40:37,105 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:40:37,105 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:40:37,105 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:40:37,106 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:40:37,107 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:40:37,107 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:40:37,107 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:40:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-31 02:40:37,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:40:37,136 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:37,137 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:40:37,140 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:37,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:37,148 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:40:37,153 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:37,154 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:37,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:37,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:37,325 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 02:40:37,326 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:37,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:37,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:40:37,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:37,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:37,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:37,361 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2018-12-31 02:40:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:37,382 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-12-31 02:40:37,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:37,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-31 02:40:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:37,396 INFO L225 Difference]: With dead ends: 26 [2018-12-31 02:40:37,397 INFO L226 Difference]: Without dead ends: 10 [2018-12-31 02:40:37,401 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 02:40:37,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-12-31 02:40:37,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-31 02:40:37,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-31 02:40:37,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2018-12-31 02:40:37,439 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 3 [2018-12-31 02:40:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:37,441 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2018-12-31 02:40:37,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:37,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2018-12-31 02:40:37,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 02:40:37,442 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:37,442 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 02:40:37,443 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:37,446 INFO L82 PathProgramCache]: Analyzing trace with hash 29801027, now seen corresponding path program 1 times [2018-12-31 02:40:37,447 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:37,448 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:37,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:37,754 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:37,782 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 02:40:37,783 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:37,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:37,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 02:40:37,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:37,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:37,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:37,807 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 3 states. [2018-12-31 02:40:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:37,821 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2018-12-31 02:40:37,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:37,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2018-12-31 02:40:37,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:37,823 INFO L225 Difference]: With dead ends: 10 [2018-12-31 02:40:37,823 INFO L226 Difference]: Without dead ends: 8 [2018-12-31 02:40:37,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 02:40:37,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-31 02:40:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-31 02:40:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-31 02:40:37,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2018-12-31 02:40:37,828 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 5 [2018-12-31 02:40:37,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:37,828 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2018-12-31 02:40:37,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:37,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2018-12-31 02:40:37,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 02:40:37,829 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:37,829 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 02:40:37,829 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:37,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:37,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1425859451, now seen corresponding path program 1 times [2018-12-31 02:40:37,831 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:37,831 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:37,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:38,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:38,151 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 02:40:38,152 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:38,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:38,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 02:40:38,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:38,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:38,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:38,167 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 3 states. [2018-12-31 02:40:38,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:38,169 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2018-12-31 02:40:38,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:38,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-31 02:40:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:38,169 INFO L225 Difference]: With dead ends: 8 [2018-12-31 02:40:38,169 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:40:38,171 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 02:40:38,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:40:38,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:40:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:40:38,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:40:38,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-31 02:40:38,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:38,172 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:40:38,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:40:38,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:40:38,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:40:38,182 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:40:38,182 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-31 02:40:38,182 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-12-31 02:40:38,182 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-12-31 02:40:38,183 INFO L448 ceAbstractionStarter]: For program point L23(lines 1 37) no Hoare annotation was computed. [2018-12-31 02:40:38,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2018-12-31 02:40:38,183 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 21) no Hoare annotation was computed. [2018-12-31 02:40:38,183 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 11) no Hoare annotation was computed. [2018-12-31 02:40:38,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:40:38,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:40:38,184 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-31 02:40:38,184 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-12-31 02:40:38,184 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-31 02:40:38,184 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-31 02:40:38,184 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-31 02:40:38,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:40:38 BoogieIcfgContainer [2018-12-31 02:40:38,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:40:38,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:40:38,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:40:38,188 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:40:38,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:36" (3/4) ... [2018-12-31 02:40:38,193 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:40:38,204 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:40:38,204 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:40:38,254 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:40:38,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:40:38,255 INFO L168 Benchmark]: Toolchain (without parser) took 1979.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -95.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:38,258 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 02:40:38,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.95 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:38,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:38,261 INFO L168 Benchmark]: Boogie Preprocessor took 43.74 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:38,261 INFO L168 Benchmark]: RCFGBuilder took 338.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:38,262 INFO L168 Benchmark]: TraceAbstraction took 1187.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:38,264 INFO L168 Benchmark]: Witness Printer took 66.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:38,269 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 293.95 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.74 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 338.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1187.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * Witness Printer took 66.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 3 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 15 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 3 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, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 8 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...