./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091_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_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 84dba58cac25505e0eb3c404a47a071a268de901 ............................................................................................................................................................................................................................................................................................................. 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_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 84dba58cac25505e0eb3c404a47a071a268de901 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 12:48:01,048 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:48:01,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:48:01,055 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:48:01,055 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:48:01,056 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:48:01,056 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:48:01,057 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:48:01,058 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:48:01,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:48:01,059 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:48:01,059 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:48:01,060 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:48:01,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:48:01,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:48:01,061 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:48:01,061 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:48:01,062 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:48:01,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:48:01,064 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:48:01,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:48:01,065 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:48:01,066 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:48:01,066 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:48:01,066 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:48:01,067 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:48:01,067 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:48:01,068 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:48:01,068 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:48:01,068 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:48:01,069 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:48:01,069 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:48:01,069 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:48:01,069 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:48:01,070 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:48:01,070 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:48:01,070 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 12:48:01,077 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:48:01,077 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:48:01,078 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:48:01,078 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:48:01,078 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 12:48:01,078 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 12:48:01,079 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:48:01,079 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:48:01,080 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:48:01,080 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:48:01,080 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 12:48:01,080 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:48:01,080 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:48:01,080 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:48:01,080 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:48:01,080 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:48:01,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:48:01,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:48:01,081 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:48:01,081 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:48:01,081 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 12:48:01,081 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:48:01,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 12:48:01,081 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_43029750-2aef-4680-9288-4060ca20cf6b/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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-12-02 12:48:01,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:48:01,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:48:01,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:48:01,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:48:01,113 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:48:01,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-02 12:48:01,151 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/381fc9008/cf928cb05b7e49568e02c3336c6529c8/FLAG231be55e3 [2018-12-02 12:48:01,579 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:48:01,579 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-02 12:48:01,583 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/381fc9008/cf928cb05b7e49568e02c3336c6529c8/FLAG231be55e3 [2018-12-02 12:48:01,591 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/381fc9008/cf928cb05b7e49568e02c3336c6529c8 [2018-12-02 12:48:01,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:48:01,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:48:01,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:48:01,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:48:01,596 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:48:01,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7962e2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01, skipping insertion in model container [2018-12-02 12:48:01,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:48:01,612 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:48:01,703 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:48:01,706 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:48:01,723 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:48:01,735 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:48:01,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01 WrapperNode [2018-12-02 12:48:01,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:48:01,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:48:01,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:48:01,736 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:48:01,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:48:01,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:48:01,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:48:01,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:48:01,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... [2018-12-02 12:48:01,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:48:01,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:48:01,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:48:01,801 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:48:01,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 [2018-12-02 12:48:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 12:48:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-02 12:48:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:48:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-02 12:48:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:48:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 12:48:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:48:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:48:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 12:48:02,025 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:48:02,026 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-02 12:48:02,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:48:02 BoogieIcfgContainer [2018-12-02 12:48:02,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:48:02,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:48:02,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:48:02,029 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:48:02,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:48:01" (1/3) ... [2018-12-02 12:48:02,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f77cf63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:48:02, skipping insertion in model container [2018-12-02 12:48:02,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:01" (2/3) ... [2018-12-02 12:48:02,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f77cf63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:48:02, skipping insertion in model container [2018-12-02 12:48:02,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:48:02" (3/3) ... [2018-12-02 12:48:02,031 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-12-02 12:48:02,037 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:48:02,042 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 12:48:02,052 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 12:48:02,071 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 12:48:02,072 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:48:02,072 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:48:02,072 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:48:02,072 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:48:02,072 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:48:02,072 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:48:02,072 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:48:02,072 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:48:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-02 12:48:02,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 12:48:02,089 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:48:02,090 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] [2018-12-02 12:48:02,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:48:02,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:48:02,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1881433434, now seen corresponding path program 1 times [2018-12-02 12:48:02,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:48:02,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:48:02,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:48:02,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:48:02,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:48:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:48:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:48:02,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:48:02,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 12:48:02,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 12:48:02,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 12:48:02,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 12:48:02,196 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-12-02 12:48:02,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:48:02,210 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2018-12-02 12:48:02,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 12:48:02,210 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-02 12:48:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:48:02,216 INFO L225 Difference]: With dead ends: 86 [2018-12-02 12:48:02,217 INFO L226 Difference]: Without dead ends: 43 [2018-12-02 12:48:02,218 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 [2018-12-02 12:48:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-02 12:48:02,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-02 12:48:02,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-02 12:48:02,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2018-12-02 12:48:02,240 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2018-12-02 12:48:02,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:48:02,241 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2018-12-02 12:48:02,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 12:48:02,241 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-12-02 12:48:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 12:48:02,241 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:48:02,242 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] [2018-12-02 12:48:02,242 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:48:02,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:48:02,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1135906069, now seen corresponding path program 1 times [2018-12-02 12:48:02,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:48:02,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:48:02,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:48:02,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:48:02,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:48:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:48:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:48:02,293 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 12:48:02,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:48:02 BoogieIcfgContainer [2018-12-02 12:48:02,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:48:02,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:48:02,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:48:02,310 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:48:02,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:48:02" (3/4) ... [2018-12-02 12:48:02,313 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 12:48:02,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:48:02,314 INFO L168 Benchmark]: Toolchain (without parser) took 720.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -88.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:02,314 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:48:02,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.81 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 946.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:02,315 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:02,315 INFO L168 Benchmark]: Boogie Preprocessor took 18.83 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. [2018-12-02 12:48:02,316 INFO L168 Benchmark]: RCFGBuilder took 225.36 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:02,316 INFO L168 Benchmark]: TraceAbstraction took 283.50 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:02,316 INFO L168 Benchmark]: Witness Printer took 2.84 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. [2018-12-02 12:48:02,318 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.81 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 946.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.83 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 225.36 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 283.50 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 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: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418244, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418245] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [\old(x)=10737418245, \result=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L91] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L91] double res = ceil_double(x); [L94] CALL, EXPR isnan_double(res) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L15] return x != x; VAL [\old(x)=10737418245, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L94] RET, EXPR isnan_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=10737418245, x=10737418245] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] - 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 [2018-12-02 12:48:03,660 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:48:03,661 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:48:03,667 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:48:03,667 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:48:03,668 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:48:03,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:48:03,669 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:48:03,670 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:48:03,670 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:48:03,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:48:03,671 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:48:03,671 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:48:03,672 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:48:03,672 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:48:03,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:48:03,673 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:48:03,674 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:48:03,675 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:48:03,676 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:48:03,676 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:48:03,677 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:48:03,678 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:48:03,678 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:48:03,678 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:48:03,679 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:48:03,679 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:48:03,680 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:48:03,680 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:48:03,681 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:48:03,681 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:48:03,681 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:48:03,681 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:48:03,681 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:48:03,682 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:48:03,682 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:48:03,682 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 12:48:03,690 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:48:03,690 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:48:03,690 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:48:03,690 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:48:03,691 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 12:48:03,691 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 12:48:03,691 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 12:48:03,691 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:48:03,691 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:48:03,691 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:48:03,692 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:48:03,693 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 12:48:03,693 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:48:03,693 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:48:03,693 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:48:03,693 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:48:03,693 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:48:03,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:48:03,694 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:48:03,694 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:48:03,694 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:48:03,694 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 12:48:03,694 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:48:03,694 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 12:48:03,694 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 12:48:03,694 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_43029750-2aef-4680-9288-4060ca20cf6b/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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-12-02 12:48:03,713 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:48:03,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:48:03,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:48:03,726 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:48:03,726 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:48:03,726 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-02 12:48:03,772 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/856752e40/d2dfbe66409d42e6aea4fc79c410da70/FLAG9f5b8c669 [2018-12-02 12:48:04,068 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:48:04,069 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-02 12:48:04,072 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/856752e40/d2dfbe66409d42e6aea4fc79c410da70/FLAG9f5b8c669 [2018-12-02 12:48:04,507 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/data/856752e40/d2dfbe66409d42e6aea4fc79c410da70 [2018-12-02 12:48:04,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:48:04,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:48:04,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:48:04,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:48:04,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:48:04,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3832628d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04, skipping insertion in model container [2018-12-02 12:48:04,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:48:04,536 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:48:04,640 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:48:04,643 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:48:04,663 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:48:04,681 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:48:04,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04 WrapperNode [2018-12-02 12:48:04,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:48:04,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:48:04,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:48:04,682 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:48:04,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:48:04,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:48:04,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:48:04,699 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:48:04,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... [2018-12-02 12:48:04,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:48:04,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:48:04,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:48:04,755 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:48:04,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 [2018-12-02 12:48:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-02 12:48:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-02 12:48:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-02 12:48:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-02 12:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:48:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 12:48:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 12:48:04,961 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:48:05,803 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:48:05,803 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-02 12:48:05,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:48:05 BoogieIcfgContainer [2018-12-02 12:48:05,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:48:05,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:48:05,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:48:05,806 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:48:05,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:48:04" (1/3) ... [2018-12-02 12:48:05,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37379bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:48:05, skipping insertion in model container [2018-12-02 12:48:05,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:48:04" (2/3) ... [2018-12-02 12:48:05,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37379bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:48:05, skipping insertion in model container [2018-12-02 12:48:05,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:48:05" (3/3) ... [2018-12-02 12:48:05,808 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-12-02 12:48:05,814 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:48:05,818 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 12:48:05,827 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 12:48:05,843 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 12:48:05,843 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:48:05,843 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:48:05,843 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:48:05,843 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:48:05,843 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:48:05,843 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:48:05,843 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:48:05,844 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:48:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-12-02 12:48:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 12:48:05,856 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:48:05,856 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] [2018-12-02 12:48:05,858 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:48:05,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:48:05,861 INFO L82 PathProgramCache]: Analyzing trace with hash -645750269, now seen corresponding path program 1 times [2018-12-02 12:48:05,864 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:48:05,864 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 [2018-12-02 12:48:05,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:48:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:48:05,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:48:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:48:05,922 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:48:05,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:48:05,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 12:48:05,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 12:48:05,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 12:48:05,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 12:48:05,942 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-12-02 12:48:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:48:05,954 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2018-12-02 12:48:05,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 12:48:05,955 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-02 12:48:05,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:48:05,962 INFO L225 Difference]: With dead ends: 84 [2018-12-02 12:48:05,962 INFO L226 Difference]: Without dead ends: 42 [2018-12-02 12:48:05,965 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 [2018-12-02 12:48:05,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-02 12:48:05,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-02 12:48:05,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-02 12:48:05,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2018-12-02 12:48:05,994 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 22 [2018-12-02 12:48:05,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:48:05,994 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2018-12-02 12:48:05,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 12:48:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2018-12-02 12:48:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 12:48:05,995 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:48:05,995 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] [2018-12-02 12:48:05,995 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:48:05,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:48:05,996 INFO L82 PathProgramCache]: Analyzing trace with hash 938296292, now seen corresponding path program 1 times [2018-12-02 12:48:05,996 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:48:05,997 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 [2018-12-02 12:48:06,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:48:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:48:06,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:48:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:48:06,192 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:48:06,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:48:06,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 12:48:06,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 12:48:06,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 12:48:06,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 12:48:06,201 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 9 states. [2018-12-02 12:48:07,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:48:07,513 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2018-12-02 12:48:07,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 12:48:07,514 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-02 12:48:07,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:48:07,515 INFO L225 Difference]: With dead ends: 51 [2018-12-02 12:48:07,516 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 12:48:07,516 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 [2018-12-02 12:48:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 12:48:07,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-12-02 12:48:07,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-02 12:48:07,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2018-12-02 12:48:07,522 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 23 [2018-12-02 12:48:07,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:48:07,522 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2018-12-02 12:48:07,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 12:48:07,522 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2018-12-02 12:48:07,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 12:48:07,523 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:48:07,523 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] [2018-12-02 12:48:07,523 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:48:07,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:48:07,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1029166427, now seen corresponding path program 1 times [2018-12-02 12:48:07,524 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:48:07,524 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 [2018-12-02 12:48:07,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:48:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:48:07,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:48:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:48:08,339 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:48:08,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:48:08,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 12:48:08,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 12:48:08,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 12:48:08,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 12:48:08,348 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 9 states. [2018-12-02 12:48:10,255 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-02 12:48:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:48:11,862 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-12-02 12:48:11,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 12:48:11,862 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-02 12:48:11,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:48:11,863 INFO L225 Difference]: With dead ends: 49 [2018-12-02 12:48:11,863 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 12:48:11,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-02 12:48:11,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 12:48:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-02 12:48:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 12:48:11,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-02 12:48:11,867 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 23 [2018-12-02 12:48:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:48:11,867 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-02 12:48:11,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 12:48:11,867 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-02 12:48:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 12:48:11,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:48:11,867 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] [2018-12-02 12:48:11,868 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:48:11,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:48:11,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1513115684, now seen corresponding path program 1 times [2018-12-02 12:48:11,868 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:48:11,868 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 [2018-12-02 12:48:11,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:48:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:48:11,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:48:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:48:12,076 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:48:12,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:48:12,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 12:48:12,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 12:48:12,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 12:48:12,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 12:48:12,085 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-12-02 12:48:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:48:13,948 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2018-12-02 12:48:13,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 12:48:13,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-02 12:48:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:48:13,951 INFO L225 Difference]: With dead ends: 67 [2018-12-02 12:48:13,951 INFO L226 Difference]: Without dead ends: 40 [2018-12-02 12:48:13,951 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 [2018-12-02 12:48:13,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-02 12:48:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2018-12-02 12:48:13,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-02 12:48:13,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-12-02 12:48:13,955 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-12-02 12:48:13,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:48:13,955 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-12-02 12:48:13,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 12:48:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-12-02 12:48:13,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 12:48:13,956 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:48:13,956 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] [2018-12-02 12:48:13,956 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:48:13,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:48:13,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1571354609, now seen corresponding path program 1 times [2018-12-02 12:48:13,957 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:48:13,957 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/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 [2018-12-02 12:48:13,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:48:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:48:14,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:48:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:48:14,206 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:48:14,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:48:14,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 12:48:14,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 12:48:14,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 12:48:14,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 12:48:14,215 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 8 states. [2018-12-02 12:48:14,662 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-12-02 12:48:15,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:48:15,316 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-12-02 12:48:15,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 12:48:15,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-02 12:48:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:48:15,316 INFO L225 Difference]: With dead ends: 40 [2018-12-02 12:48:15,316 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 12:48:15,316 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-12-02 12:48:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 12:48:15,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 12:48:15,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 12:48:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 12:48:15,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-02 12:48:15,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:48:15,317 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:48:15,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 12:48:15,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 12:48:15,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 12:48:15,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 12:48:15,372 INFO L451 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 15) the Hoare annotation is: true [2018-12-02 12:48:15,372 INFO L448 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-12-02 12:48:15,372 INFO L448 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-12-02 12:48:15,372 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-12-02 12:48:15,373 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 12:48:15,374 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L444 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 .cse0))) [2018-12-02 12:48:15,374 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 100) the Hoare annotation is: true [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L94-1(lines 94 97) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 100) no Hoare annotation was computed. [2018-12-02 12:48:15,374 INFO L444 ceAbstractionStarter]: At program point L91(line 91) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2018-12-02 12:48:15,374 INFO L448 ceAbstractionStarter]: For program point L91-1(line 91) no Hoare annotation was computed. [2018-12-02 12:48:15,375 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 100) no Hoare annotation was computed. [2018-12-02 12:48:15,375 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-12-02 12:48:15,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:48:15 BoogieIcfgContainer [2018-12-02 12:48:15,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:48:15,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:48:15,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:48:15,382 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:48:15,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:48:05" (3/4) ... [2018-12-02 12:48:15,385 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 12:48:15,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-12-02 12:48:15,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 12:48:15,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-12-02 12:48:15,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 12:48:15,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-12-02 12:48:15,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-02 12:48:15,392 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 12:48:15,408 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 12:48:15,421 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_43029750-2aef-4680-9288-4060ca20cf6b/bin-2019/uautomizer/witness.graphml [2018-12-02 12:48:15,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:48:15,422 INFO L168 Benchmark]: Toolchain (without parser) took 10912.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 943.4 MB in the beginning and 864.8 MB in the end (delta: 78.6 MB). Peak memory consumption was 219.6 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:15,422 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-02 12:48:15,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:15,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.50 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. [2018-12-02 12:48:15,423 INFO L168 Benchmark]: Boogie Preprocessor took 55.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:15,423 INFO L168 Benchmark]: RCFGBuilder took 1047.84 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:15,423 INFO L168 Benchmark]: TraceAbstraction took 9578.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.4 MB in the end (delta: 221.1 MB). Peak memory consumption was 221.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:15,423 INFO L168 Benchmark]: Witness Printer took 39.26 ms. Allocated memory is still 1.2 GB. Free memory was 871.4 MB in the beginning and 864.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-02 12:48:15,425 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.50 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 55.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1047.84 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9578.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.4 MB in the end (delta: 221.1 MB). Peak memory consumption was 221.1 MB. Max. memory is 11.5 GB. * Witness Printer took 39.26 ms. Allocated memory is still 1.2 GB. Free memory was 871.4 MB in the beginning and 864.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: 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: 22]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. SAFE Result, 9.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 186 SDtfs, 249 SDslu, 649 SDs, 0 SdLazy, 326 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s 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...