./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1092c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1092c_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 515d13351b6efee56e7d1331680e6aaafc770d9e ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1092c_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 515d13351b6efee56e7d1331680e6aaafc770d9e ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:03:52,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:52,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:52,669 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:52,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:52,670 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:52,672 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:52,674 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:52,676 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:52,677 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:52,678 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:52,678 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:52,679 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:52,680 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:52,682 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:52,683 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:52,683 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:52,686 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:52,688 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:52,690 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:52,691 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:52,693 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:52,696 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:52,696 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:52,696 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:52,697 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:52,698 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:52,699 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:52,700 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:52,701 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:52,702 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:52,703 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:52,703 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:52,703 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:52,704 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:52,705 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:52,706 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:03:52,722 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:52,723 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:52,723 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:52,724 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:52,724 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:52,724 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:52,725 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:52,725 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:52,725 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:52,725 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:03:52,725 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:52,726 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:52,726 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:52,726 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:52,727 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:52,727 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:52,727 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:52,727 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:52,727 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:52,728 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:52,728 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:52,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:52,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:52,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:52,729 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:52,729 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:52,729 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:52,730 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:03:52,730 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:52,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:03:52,730 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 -> 515d13351b6efee56e7d1331680e6aaafc770d9e [2018-11-28 18:03:52,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:52,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:52,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:52,811 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:52,811 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:52,812 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-11-28 18:03:52,891 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f011c525/2f2da3139a12400f860be5bbcf018441/FLAG889750fd5 [2018-11-28 18:03:53,316 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:53,318 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-11-28 18:03:53,334 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f011c525/2f2da3139a12400f860be5bbcf018441/FLAG889750fd5 [2018-11-28 18:03:53,691 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f011c525/2f2da3139a12400f860be5bbcf018441 [2018-11-28 18:03:53,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:53,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:53,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:53,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:53,702 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:53,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcdd59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53, skipping insertion in model container [2018-11-28 18:03:53,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:53,743 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:53,981 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:53,994 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:54,032 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:54,063 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:54,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54 WrapperNode [2018-11-28 18:03:54,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:54,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:54,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:54,065 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:54,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:54,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:54,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:54,088 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:54,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (1/1) ... [2018-11-28 18:03:54,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:54,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:54,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:54,184 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:54,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (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 [2018-11-28 18:03:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:03:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:03:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:03:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:03:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-28 18:03:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-28 18:03:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:54,787 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:54,787 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:03:54,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:54 BoogieIcfgContainer [2018-11-28 18:03:54,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:54,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:54,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:54,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:54,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:53" (1/3) ... [2018-11-28 18:03:54,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381a5b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:54, skipping insertion in model container [2018-11-28 18:03:54,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:54" (2/3) ... [2018-11-28 18:03:54,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381a5b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:54, skipping insertion in model container [2018-11-28 18:03:54,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:54" (3/3) ... [2018-11-28 18:03:54,798 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c_true-unreach-call.c [2018-11-28 18:03:54,809 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:54,818 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:54,837 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:54,872 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:54,873 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:54,873 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:54,873 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:54,873 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:54,874 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:54,874 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:54,874 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:54,874 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-28 18:03:54,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 18:03:54,900 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:54,901 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:54,904 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:54,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:54,909 INFO L82 PathProgramCache]: Analyzing trace with hash -104285294, now seen corresponding path program 1 times [2018-11-28 18:03:54,911 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:54,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:54,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:54,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:54,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:55,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:55,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:55,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:55,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:55,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:55,078 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-28 18:03:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:55,102 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-11-28 18:03:55,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:55,103 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 18:03:55,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:55,114 INFO L225 Difference]: With dead ends: 76 [2018-11-28 18:03:55,115 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 18:03:55,118 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 18:03:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 18:03:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 18:03:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-28 18:03:55,160 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-11-28 18:03:55,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:55,160 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-28 18:03:55,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-28 18:03:55,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:55,162 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:55,162 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:55,163 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:55,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:55,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1628048040, now seen corresponding path program 1 times [2018-11-28 18:03:55,163 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:55,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:55,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:55,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:55,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:55,380 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:03:55,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:55 BoogieIcfgContainer [2018-11-28 18:03:55,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:55,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:55,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:55,439 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:55,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:54" (3/4) ... [2018-11-28 18:03:55,445 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:03:55,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:55,447 INFO L168 Benchmark]: Toolchain (without parser) took 1751.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -126.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:55,450 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-28 18:03:55,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.03 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. [2018-11-28 18:03:55,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.87 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:55,452 INFO L168 Benchmark]: Boogie Preprocessor took 94.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:55,454 INFO L168 Benchmark]: RCFGBuilder took 604.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:55,455 INFO L168 Benchmark]: TraceAbstraction took 649.63 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:55,457 INFO L168 Benchmark]: Witness Printer took 6.57 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. [2018-11-28 18:03:55,465 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 367.03 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 22.87 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 604.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 649.63 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.57 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: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450949, huge_ceil=1000000000000000000000000000000] [L76] float x = 1.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, x=6442450952] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] return x + x; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L77] RET, EXPR ceil_float(x) VAL [ceil_float(x)=6442450948, huge_ceil=1000000000000000000000000000000, x=6442450952] [L77] float res = ceil_float(x); [L80] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450948, huge_ceil=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=6442450948, huge_ceil=1000000000000000000000000000000, x=6442450948] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450948, \result=0, huge_ceil=1000000000000000000000000000000, ix=0, x=6442450948] [L80] RET, EXPR isinf_float(res) VAL [huge_ceil=1000000000000000000000000000000, isinf_float(res)=0, res=6442450948, x=6442450952] [L80] COND TRUE !isinf_float(res) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450948, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.1.24-91b1670 [2018-11-28 18:03:57,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:57,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:57,830 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:57,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:57,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:57,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:57,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:57,850 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:57,851 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:57,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:57,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:57,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:57,862 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:57,864 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:57,864 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:57,868 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:57,872 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:57,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:57,881 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:57,884 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:57,888 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:57,890 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:57,890 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:57,894 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:57,895 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:57,896 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:57,896 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:57,899 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:57,901 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:57,903 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:57,904 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:57,904 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:57,906 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:57,907 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:57,909 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:57,911 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:03:57,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:57,941 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:57,942 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:57,942 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:57,943 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:57,944 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:57,944 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:57,945 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:57,945 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:57,945 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:57,946 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:57,946 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:57,946 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:57,946 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:57,946 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:03:57,947 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:03:57,947 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:57,948 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:57,948 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:57,948 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:57,948 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:57,948 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:57,948 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:57,949 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:57,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:57,952 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:57,952 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:57,952 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:57,952 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:03:57,952 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:57,952 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:03:57,952 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:03:57,954 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 -> 515d13351b6efee56e7d1331680e6aaafc770d9e [2018-11-28 18:03:58,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:58,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:58,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:58,043 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:58,044 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:58,045 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-11-28 18:03:58,106 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9769f5ed4/0834c3babf084f9dab872a766b192270/FLAG4bae1a44e [2018-11-28 18:03:58,596 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:58,597 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-11-28 18:03:58,605 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9769f5ed4/0834c3babf084f9dab872a766b192270/FLAG4bae1a44e [2018-11-28 18:03:59,010 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9769f5ed4/0834c3babf084f9dab872a766b192270 [2018-11-28 18:03:59,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:59,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:59,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:59,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:59,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:59,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb0bef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59, skipping insertion in model container [2018-11-28 18:03:59,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:59,063 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:59,333 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:59,342 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:59,390 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:59,427 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:59,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59 WrapperNode [2018-11-28 18:03:59,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:59,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:59,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:59,429 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:59,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:59,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:59,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:59,469 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:59,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (1/1) ... [2018-11-28 18:03:59,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:59,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:59,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:59,611 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:59,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (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 [2018-11-28 18:03:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:03:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:03:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-28 18:03:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-28 18:03:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:03:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:03:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:59,958 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:00,692 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:00,928 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:04:00,928 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:04:00,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:00 BoogieIcfgContainer [2018-11-28 18:04:00,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:04:00,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:04:00,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:04:00,934 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:04:00,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:59" (1/3) ... [2018-11-28 18:04:00,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad51aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:00, skipping insertion in model container [2018-11-28 18:04:00,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:59" (2/3) ... [2018-11-28 18:04:00,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad51aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:00, skipping insertion in model container [2018-11-28 18:04:00,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:00" (3/3) ... [2018-11-28 18:04:00,937 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c_true-unreach-call.c [2018-11-28 18:04:00,948 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:04:00,956 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:04:00,975 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:04:01,009 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:04:01,010 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:04:01,010 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:04:01,011 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:04:01,011 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:04:01,011 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:04:01,011 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:04:01,011 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:04:01,011 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:04:01,031 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-28 18:04:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:04:01,038 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:01,039 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:01,041 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:01,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:01,047 INFO L82 PathProgramCache]: Analyzing trace with hash -731890553, now seen corresponding path program 1 times [2018-11-28 18:04:01,051 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:01,052 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 [2018-11-28 18:04:01,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:01,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:01,178 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:01,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:01,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:04:01,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:04:01,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:04:01,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:01,223 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-28 18:04:01,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:01,256 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2018-11-28 18:04:01,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:04:01,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 18:04:01,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:01,273 INFO L225 Difference]: With dead ends: 74 [2018-11-28 18:04:01,274 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 18:04:01,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 18:04:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 18:04:01,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 18:04:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-11-28 18:04:01,331 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2018-11-28 18:04:01,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:01,332 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-11-28 18:04:01,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:04:01,333 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-11-28 18:04:01,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:04:01,335 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:01,336 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:01,336 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:01,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:01,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1388678818, now seen corresponding path program 1 times [2018-11-28 18:04:01,338 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:01,338 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 [2018-11-28 18:04:01,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:01,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:02,602 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-28 18:04:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:02,940 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:02,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:02,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 18:04:02,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 18:04:02,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 18:04:02,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:04:02,958 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 11 states. [2018-11-28 18:04:03,750 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 18:04:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:06,354 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-28 18:04:06,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 18:04:06,355 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-28 18:04:06,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:06,359 INFO L225 Difference]: With dead ends: 46 [2018-11-28 18:04:06,359 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 18:04:06,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 18:04:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 18:04:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-28 18:04:06,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 18:04:06,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-28 18:04:06,371 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2018-11-28 18:04:06,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:06,372 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-28 18:04:06,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 18:04:06,372 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-28 18:04:06,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:04:06,373 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:06,373 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:06,374 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:06,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:06,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1682081825, now seen corresponding path program 1 times [2018-11-28 18:04:06,375 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:06,375 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 [2018-11-28 18:04:06,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:06,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:06,572 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:06,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:06,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:04:06,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:04:06,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:04:06,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:04:06,589 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-11-28 18:04:06,996 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-28 18:04:08,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:08,118 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-11-28 18:04:08,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:04:08,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-28 18:04:08,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:08,123 INFO L225 Difference]: With dead ends: 59 [2018-11-28 18:04:08,123 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 18:04:08,124 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:04:08,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 18:04:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-11-28 18:04:08,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 18:04:08,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-11-28 18:04:08,133 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2018-11-28 18:04:08,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:08,134 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-11-28 18:04:08,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:04:08,134 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-11-28 18:04:08,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:04:08,135 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:08,135 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:08,136 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:08,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:08,136 INFO L82 PathProgramCache]: Analyzing trace with hash -2087457071, now seen corresponding path program 1 times [2018-11-28 18:04:08,137 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:08,137 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 18:04:08,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:08,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:08,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:08,336 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:08,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:08,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:04:08,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:04:08,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:04:08,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:04:08,348 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 7 states. [2018-11-28 18:04:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:09,347 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-11-28 18:04:09,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:04:09,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 18:04:09,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:09,350 INFO L225 Difference]: With dead ends: 42 [2018-11-28 18:04:09,350 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:04:09,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:04:09,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:04:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:04:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:04:09,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:04:09,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 18:04:09,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:09,353 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:04:09,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:04:09,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:04:09,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:04:09,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:04:09,519 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-28 18:04:09,519 INFO L444 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-28 18:04:09,519 INFO L448 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2018-11-28 18:04:09,520 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-11-28 18:04:09,520 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-11-28 18:04:09,520 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-11-28 18:04:09,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:04:09,520 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:04:09,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:04:09,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:04:09,521 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:04:09,521 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:04:09,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:04:09,521 INFO L448 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-11-28 18:04:09,521 INFO L444 ceAbstractionStarter]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-28 18:04:09,521 INFO L448 ceAbstractionStarter]: For program point L80-1(lines 80 83) no Hoare annotation was computed. [2018-11-28 18:04:09,522 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-11-28 18:04:09,522 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-28 18:04:09,522 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-11-28 18:04:09,522 INFO L448 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-11-28 18:04:09,522 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-11-28 18:04:09,522 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-11-28 18:04:09,522 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-28 18:04:09,523 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-28 18:04:09,523 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-11-28 18:04:09,523 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-11-28 18:04:09,523 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-28 18:04:09,523 INFO L451 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-28 18:04:09,523 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-28 18:04:09,523 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-28 18:04:09,524 INFO L448 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-28 18:04:09,524 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:04:09,524 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-11-28 18:04:09,524 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:04:09,524 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-28 18:04:09,524 INFO L448 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-28 18:04:09,524 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-28 18:04:09,525 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-28 18:04:09,526 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-28 18:04:09,526 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-28 18:04:09,526 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-28 18:04:09,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:04:09 BoogieIcfgContainer [2018-11-28 18:04:09,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:04:09,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:04:09,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:04:09,551 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:04:09,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:00" (3/4) ... [2018-11-28 18:04:09,558 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:04:09,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-28 18:04:09,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:04:09,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:04:09,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-28 18:04:09,578 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-28 18:04:09,579 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 18:04:09,579 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:04:09,612 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:04:09,612 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:04:09,653 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:04:09,654 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:04:09,655 INFO L168 Benchmark]: Toolchain (without parser) took 10640.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 948.7 MB in the beginning and 934.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 151.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:09,656 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-28 18:04:09,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:09,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.13 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:09,658 INFO L168 Benchmark]: Boogie Preprocessor took 142.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:09,659 INFO L168 Benchmark]: RCFGBuilder took 1317.98 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:09,659 INFO L168 Benchmark]: TraceAbstraction took 8616.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.8 MB in the end (delta: 165.8 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:09,660 INFO L168 Benchmark]: Witness Printer took 103.41 ms. Allocated memory is still 1.2 GB. Free memory was 940.8 MB in the beginning and 934.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:09,664 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 411.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.13 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 142.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1317.98 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8616.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.8 MB in the end (delta: 165.8 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. * Witness Printer took 103.41 ms. Allocated memory is still 1.2 GB. Free memory was 940.8 MB in the beginning and 934.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: 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: 59]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 8.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 6.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 119 SDtfs, 163 SDslu, 393 SDs, 0 SdLazy, 262 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 11 QuantifiedInterpolants, 11309 SizeOfPredicates, 14 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...