./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer --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 0fa375491f6ee23468a1ede5cb9608fff6035ced ................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer --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 0fa375491f6ee23468a1ede5cb9608fff6035ced .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 09:57:50,845 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:57:50,846 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:57:50,852 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:57:50,852 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:57:50,853 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:57:50,853 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:57:50,854 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:57:50,855 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:57:50,855 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:57:50,855 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:57:50,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:57:50,856 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:57:50,856 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:57:50,857 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:57:50,857 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:57:50,858 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:57:50,858 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:57:50,859 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:57:50,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:57:50,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:57:50,861 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:57:50,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:57:50,862 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:57:50,862 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:57:50,863 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:57:50,863 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:57:50,864 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:57:50,864 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:57:50,865 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:57:50,865 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:57:50,865 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:57:50,865 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:57:50,865 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:57:50,866 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:57:50,866 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:57:50,866 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 09:57:50,873 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:57:50,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:57:50,873 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 09:57:50,874 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 09:57:50,874 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:57:50,874 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:57:50,874 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:57:50,874 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:57:50,874 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 09:57:50,874 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 09:57:50,875 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:57:50,875 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:57:50,876 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 09:57:50,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 09:57:50,876 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2018-12-08 09:57:50,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:57:50,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:57:50,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:57:50,907 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:57:50,907 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:57:50,907 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-12-08 09:57:50,952 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/94bdc341f/9fb321df401b4d448a9fb0fa6e063172/FLAG1e161b550 [2018-12-08 09:57:51,393 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:57:51,393 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-12-08 09:57:51,397 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/94bdc341f/9fb321df401b4d448a9fb0fa6e063172/FLAG1e161b550 [2018-12-08 09:57:51,408 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/94bdc341f/9fb321df401b4d448a9fb0fa6e063172 [2018-12-08 09:57:51,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:57:51,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 09:57:51,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:57:51,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:57:51,416 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:57:51,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697bc169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51, skipping insertion in model container [2018-12-08 09:57:51,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:57:51,440 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:57:51,546 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:57:51,548 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:57:51,567 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:57:51,607 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:57:51,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51 WrapperNode [2018-12-08 09:57:51,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:57:51,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 09:57:51,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 09:57:51,608 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 09:57:51,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 09:57:51,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:57:51,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:57:51,624 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:57:51,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... [2018-12-08 09:57:51,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:57:51,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:57:51,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:57:51,643 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:57:51,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:57:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 09:57:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 09:57:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-08 09:57:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-08 09:57:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 09:57:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 09:57:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 09:57:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 09:57:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 09:57:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 09:57:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:57:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:57:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 09:57:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 09:57:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 09:57:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 09:57:51,831 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:57:51,831 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 09:57:51,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:57:51 BoogieIcfgContainer [2018-12-08 09:57:51,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:57:51,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 09:57:51,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 09:57:51,833 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 09:57:51,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:57:51" (1/3) ... [2018-12-08 09:57:51,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd8684a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:57:51, skipping insertion in model container [2018-12-08 09:57:51,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:51" (2/3) ... [2018-12-08 09:57:51,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd8684a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:57:51, skipping insertion in model container [2018-12-08 09:57:51,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:57:51" (3/3) ... [2018-12-08 09:57:51,835 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-12-08 09:57:51,841 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 09:57:51,844 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 09:57:51,853 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 09:57:51,871 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:57:51,872 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 09:57:51,872 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 09:57:51,872 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 09:57:51,872 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:57:51,872 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:57:51,872 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 09:57:51,872 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:57:51,872 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 09:57:51,882 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-08 09:57:51,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 09:57:51,885 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:57:51,886 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] [2018-12-08 09:57:51,887 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:57:51,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:57:51,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2018-12-08 09:57:51,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:57:51,892 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:57:51,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:57:51,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:57:51,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:57:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:57:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:57:51,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:57:51,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 09:57:51,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 09:57:51,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 09:57:51,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 09:57:51,976 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-12-08 09:57:51,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:57:51,988 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2018-12-08 09:57:51,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 09:57:51,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-08 09:57:51,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:57:51,995 INFO L225 Difference]: With dead ends: 86 [2018-12-08 09:57:51,995 INFO L226 Difference]: Without dead ends: 43 [2018-12-08 09:57:51,997 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 [2018-12-08 09:57:52,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-08 09:57:52,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-08 09:57:52,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-08 09:57:52,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2018-12-08 09:57:52,019 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2018-12-08 09:57:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:57:52,019 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2018-12-08 09:57:52,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 09:57:52,019 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-12-08 09:57:52,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 09:57:52,020 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:57:52,020 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] [2018-12-08 09:57:52,020 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:57:52,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:57:52,021 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2018-12-08 09:57:52,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:57:52,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:57:52,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:57:52,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:57:52,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:57:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:57:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:57:52,070 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 09:57:52,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:57:52 BoogieIcfgContainer [2018-12-08 09:57:52,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 09:57:52,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:57:52,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:57:52,088 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:57:52,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:57:51" (3/4) ... [2018-12-08 09:57:52,091 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 09:57:52,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:57:52,091 INFO L168 Benchmark]: Toolchain (without parser) took 680.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -99.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:57:52,092 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:57:52,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:57:52,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 09:57:52,093 INFO L168 Benchmark]: Boogie Preprocessor took 18.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:57:52,093 INFO L168 Benchmark]: RCFGBuilder took 188.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-08 09:57:52,093 INFO L168 Benchmark]: TraceAbstraction took 256.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-12-08 09:57:52,094 INFO L168 Benchmark]: Witness Printer took 2.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:57:52,095 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 188.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 256.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.57 ms. Allocated memory is still 1.1 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: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=6442450948, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] CALL, EXPR floor_double(x) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450952] [L26] COND TRUE j0 < 20 VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=6442450952] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=6442450952] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=6442450952, \result=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=6442450952] [L89] RET, EXPR floor_double(x) VAL [floor_double(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L80] return x != x; VAL [\old(x)=6442450952, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L92] RET, EXPR isnan_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=6442450952, x=6442450952] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450952, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 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=47occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 0.1.23-635dfa2 [2018-12-08 09:57:53,348 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:57:53,349 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:57:53,355 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:57:53,355 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:57:53,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:57:53,356 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:57:53,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:57:53,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:57:53,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:57:53,359 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:57:53,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:57:53,359 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:57:53,360 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:57:53,360 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:57:53,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:57:53,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:57:53,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:57:53,363 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:57:53,364 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:57:53,364 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:57:53,365 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:57:53,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:57:53,366 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:57:53,366 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:57:53,366 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:57:53,367 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:57:53,367 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:57:53,368 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:57:53,368 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:57:53,368 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:57:53,369 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:57:53,369 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:57:53,369 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:57:53,370 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:57:53,370 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:57:53,370 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 09:57:53,377 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:57:53,377 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:57:53,378 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 09:57:53,378 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 09:57:53,378 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:57:53,378 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:57:53,378 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:57:53,379 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 09:57:53,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 09:57:53,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:57:53,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 09:57:53,380 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 09:57:53,381 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 09:57:53,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 09:57:53,381 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 09:57:53,381 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 09:57:53,381 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2018-12-08 09:57:53,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:57:53,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:57:53,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:57:53,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:57:53,413 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:57:53,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-12-08 09:57:53,460 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/6ce76c028/1c1f3c86ce624f5a9c0f082497ad0443/FLAG209d6e0ff [2018-12-08 09:57:53,862 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:57:53,862 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-12-08 09:57:53,866 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/6ce76c028/1c1f3c86ce624f5a9c0f082497ad0443/FLAG209d6e0ff [2018-12-08 09:57:53,874 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/data/6ce76c028/1c1f3c86ce624f5a9c0f082497ad0443 [2018-12-08 09:57:53,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:57:53,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 09:57:53,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:57:53,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:57:53,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:57:53,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:57:53" (1/1) ... [2018-12-08 09:57:53,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af796df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:53, skipping insertion in model container [2018-12-08 09:57:53,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:57:53" (1/1) ... [2018-12-08 09:57:53,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:57:53,896 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:57:53,990 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:57:53,993 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:57:54,012 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:57:54,028 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:57:54,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54 WrapperNode [2018-12-08 09:57:54,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:57:54,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 09:57:54,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 09:57:54,029 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 09:57:54,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 09:57:54,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:57:54,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:57:54,045 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:57:54,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... [2018-12-08 09:57:54,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:57:54,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:57:54,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:57:54,098 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:57:54,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:57:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-08 09:57:54,129 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-08 09:57:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 09:57:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 09:57:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 09:57:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 09:57:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 09:57:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 09:57:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 09:57:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 09:57:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:57:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:57:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 09:57:54,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 09:57:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 09:57:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 09:57:54,240 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:57:55,091 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:57:55,091 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 09:57:55,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:57:55 BoogieIcfgContainer [2018-12-08 09:57:55,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:57:55,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 09:57:55,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 09:57:55,094 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 09:57:55,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:57:53" (1/3) ... [2018-12-08 09:57:55,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2662b58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:57:55, skipping insertion in model container [2018-12-08 09:57:55,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:57:54" (2/3) ... [2018-12-08 09:57:55,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2662b58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:57:55, skipping insertion in model container [2018-12-08 09:57:55,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:57:55" (3/3) ... [2018-12-08 09:57:55,096 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-12-08 09:57:55,102 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 09:57:55,106 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 09:57:55,114 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 09:57:55,131 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:57:55,131 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 09:57:55,131 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 09:57:55,131 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 09:57:55,131 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:57:55,132 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:57:55,132 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 09:57:55,132 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:57:55,132 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 09:57:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-12-08 09:57:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 09:57:55,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:57:55,145 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] [2018-12-08 09:57:55,146 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:57:55,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:57:55,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1623509953, now seen corresponding path program 1 times [2018-12-08 09:57:55,152 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 09:57:55,152 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 09:57:55,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:57:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:57:55,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:57:55,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:57:55,215 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:57:55,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:57:55,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 09:57:55,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 09:57:55,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 09:57:55,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 09:57:55,234 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-12-08 09:57:55,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:57:55,246 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2018-12-08 09:57:55,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 09:57:55,247 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-08 09:57:55,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:57:55,253 INFO L225 Difference]: With dead ends: 84 [2018-12-08 09:57:55,253 INFO L226 Difference]: Without dead ends: 42 [2018-12-08 09:57:55,256 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 09:57:55,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-08 09:57:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-08 09:57:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-08 09:57:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2018-12-08 09:57:55,280 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 22 [2018-12-08 09:57:55,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:57:55,281 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2018-12-08 09:57:55,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 09:57:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2018-12-08 09:57:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 09:57:55,282 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:57:55,282 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] [2018-12-08 09:57:55,282 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:57:55,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:57:55,282 INFO L82 PathProgramCache]: Analyzing trace with hash 510037476, now seen corresponding path program 1 times [2018-12-08 09:57:55,283 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 09:57:55,283 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-08 09:57:55,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:57:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:57:55,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:57:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:57:55,463 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:57:55,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:57:55,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 09:57:55,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 09:57:55,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 09:57:55,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-08 09:57:55,472 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 9 states. [2018-12-08 09:57:56,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:57:56,910 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2018-12-08 09:57:56,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 09:57:56,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-08 09:57:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:57:56,913 INFO L225 Difference]: With dead ends: 51 [2018-12-08 09:57:56,913 INFO L226 Difference]: Without dead ends: 44 [2018-12-08 09:57:56,914 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-08 09:57:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-08 09:57:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-12-08 09:57:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-08 09:57:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2018-12-08 09:57:56,921 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 23 [2018-12-08 09:57:56,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:57:56,922 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2018-12-08 09:57:56,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 09:57:56,922 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2018-12-08 09:57:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 09:57:56,923 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:57:56,923 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] [2018-12-08 09:57:56,923 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:57:56,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:57:56,924 INFO L82 PathProgramCache]: Analyzing trace with hash 600907611, now seen corresponding path program 1 times [2018-12-08 09:57:56,924 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 09:57:56,924 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-08 09:57:56,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:57:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:57:56,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:57:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:57:57,741 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:57:57,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:57:57,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 09:57:57,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 09:57:57,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 09:57:57,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-08 09:57:57,750 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 9 states. [2018-12-08 09:57:59,337 WARN L180 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-08 09:58:00,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:58:00,646 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-12-08 09:58:00,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 09:58:00,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-08 09:58:00,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:58:00,648 INFO L225 Difference]: With dead ends: 49 [2018-12-08 09:58:00,648 INFO L226 Difference]: Without dead ends: 41 [2018-12-08 09:58:00,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-08 09:58:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-08 09:58:00,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-08 09:58:00,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 09:58:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-08 09:58:00,651 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 23 [2018-12-08 09:58:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:58:00,651 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-08 09:58:00,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 09:58:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-08 09:58:00,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 09:58:00,652 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:58:00,652 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] [2018-12-08 09:58:00,652 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:58:00,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:58:00,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1506102432, now seen corresponding path program 1 times [2018-12-08 09:58:00,653 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 09:58:00,653 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/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 [2018-12-08 09:58:00,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:58:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:58:00,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:58:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:58:00,854 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:58:00,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:58:00,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:58:00,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:58:00,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:58:00,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:58:00,864 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-12-08 09:58:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:58:02,961 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2018-12-08 09:58:02,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 09:58:02,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-08 09:58:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:58:02,963 INFO L225 Difference]: With dead ends: 67 [2018-12-08 09:58:02,963 INFO L226 Difference]: Without dead ends: 40 [2018-12-08 09:58:02,963 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-08 09:58:02,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-08 09:58:02,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2018-12-08 09:58:02,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-08 09:58:02,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-12-08 09:58:02,966 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-12-08 09:58:02,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:58:02,966 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-12-08 09:58:02,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:58:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-12-08 09:58:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 09:58:02,967 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:58:02,967 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, 1] [2018-12-08 09:58:02,967 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:58:02,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:58:02,967 INFO L82 PathProgramCache]: Analyzing trace with hash -2012573455, now seen corresponding path program 1 times [2018-12-08 09:58:02,967 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 09:58:02,968 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-08 09:58:02,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:58:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:58:03,068 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:58:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:58:03,197 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:58:03,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:58:03,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 09:58:03,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 09:58:03,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 09:58:03,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:58:03,206 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 8 states. [2018-12-08 09:58:03,606 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-12-08 09:58:04,352 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-12-08 09:58:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:58:04,475 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-12-08 09:58:04,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 09:58:04,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-08 09:58:04,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:58:04,476 INFO L225 Difference]: With dead ends: 40 [2018-12-08 09:58:04,476 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 09:58:04,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-12-08 09:58:04,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 09:58:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 09:58:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 09:58:04,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 09:58:04,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-08 09:58:04,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:58:04,477 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 09:58:04,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 09:58:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 09:58:04,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 09:58:04,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 09:58:04,537 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (= floor_double_~x |floor_double_#in~x|) [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-12-08 09:58:04,538 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-12-08 09:58:04,538 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L451 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 80) the Hoare annotation is: true [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 80) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 80) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 09:58:04,539 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 09:58:04,540 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 09:58:04,540 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 09:58:04,540 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 82 98) the Hoare annotation is: true [2018-12-08 09:58:04,540 INFO L448 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2018-12-08 09:58:04,540 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 82 98) no Hoare annotation was computed. [2018-12-08 09:58:04,540 INFO L444 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 .cse0))) [2018-12-08 09:58:04,540 INFO L448 ceAbstractionStarter]: For program point L92-1(lines 92 95) no Hoare annotation was computed. [2018-12-08 09:58:04,540 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2018-12-08 09:58:04,540 INFO L444 ceAbstractionStarter]: At program point L89(line 89) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2018-12-08 09:58:04,540 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 82 98) no Hoare annotation was computed. [2018-12-08 09:58:04,540 INFO L448 ceAbstractionStarter]: For program point L89-1(line 89) no Hoare annotation was computed. [2018-12-08 09:58:04,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:58:04 BoogieIcfgContainer [2018-12-08 09:58:04,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 09:58:04,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:58:04,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:58:04,548 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:58:04,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:57:55" (3/4) ... [2018-12-08 09:58:04,550 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 09:58:04,554 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-12-08 09:58:04,554 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-12-08 09:58:04,554 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 09:58:04,555 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 09:58:04,558 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-12-08 09:58:04,558 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-08 09:58:04,558 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 09:58:04,574 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-08 09:58:04,593 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_300cbc58-92ff-4e57-8baf-63652ad09a7f/bin-2019/uautomizer/witness.graphml [2018-12-08 09:58:04,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:58:04,594 INFO L168 Benchmark]: Toolchain (without parser) took 10717.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 869.4 MB in the end (delta: 75.3 MB). Peak memory consumption was 218.4 MB. Max. memory is 11.5 GB. [2018-12-08 09:58:04,595 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:58:04,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.46 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-12-08 09:58:04,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.88 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:58:04,595 INFO L168 Benchmark]: Boogie Preprocessor took 52.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -204.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-08 09:58:04,595 INFO L168 Benchmark]: RCFGBuilder took 993.33 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-12-08 09:58:04,595 INFO L168 Benchmark]: TraceAbstraction took 9455.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 876.2 MB in the end (delta: 221.8 MB). Peak memory consumption was 221.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:58:04,596 INFO L168 Benchmark]: Witness Printer took 45.93 ms. Allocated memory is still 1.2 GB. Free memory was 876.2 MB in the beginning and 869.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:58:04,597 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.46 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.88 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -204.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 993.33 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9455.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 876.2 MB in the end (delta: 221.8 MB). Peak memory consumption was 221.8 MB. Max. memory is 11.5 GB. * Witness Printer took 45.93 ms. Allocated memory is still 1.2 GB. Free memory was 876.2 MB in the beginning and 869.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: 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: 19]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. SAFE Result, 9.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 186 SDtfs, 249 SDslu, 649 SDs, 0 SdLazy, 326 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 116 ConstructedInterpolants, 21 QuantifiedInterpolants, 18833 SizeOfPredicates, 16 NumberOfNonLiveVariables, 333 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...