./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_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_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 ............................................................................................................................................................................................................................................................................................................................ 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_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:38:28,868 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 01:38:28,869 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 01:38:28,875 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 01:38:28,875 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 01:38:28,876 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 01:38:28,876 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 01:38:28,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 01:38:28,878 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 01:38:28,878 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 01:38:28,879 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 01:38:28,879 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 01:38:28,879 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 01:38:28,880 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 01:38:28,880 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 01:38:28,881 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 01:38:28,881 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 01:38:28,882 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 01:38:28,883 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 01:38:28,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 01:38:28,884 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 01:38:28,885 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 01:38:28,886 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 01:38:28,886 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 01:38:28,886 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 01:38:28,887 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 01:38:28,887 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 01:38:28,887 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 01:38:28,888 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 01:38:28,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 01:38:28,888 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 01:38:28,889 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 01:38:28,889 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 01:38:28,889 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 01:38:28,889 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 01:38:28,890 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 01:38:28,890 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 01:38:28,897 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 01:38:28,897 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 01:38:28,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 01:38:28,898 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 01:38:28,898 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 01:38:28,898 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 01:38:28,898 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 01:38:28,898 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 01:38:28,898 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 01:38:28,898 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 01:38:28,898 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 01:38:28,899 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 01:38:28,899 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 01:38:28,900 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 01:38:28,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 01:38:28,900 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 01:38:28,900 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 01:38:28,900 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 01:38:28,900 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 01:38:28,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 01:38:28,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 01:38:28,900 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_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 -> 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 [2018-12-02 01:38:28,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 01:38:28,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 01:38:28,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 01:38:28,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 01:38:28,932 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 01:38:28,933 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-12-02 01:38:28,973 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/ab185261b/46dbcedfc0b442b18f10458b8c420c14/FLAGd2a2e7d50 [2018-12-02 01:38:29,299 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 01:38:29,299 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-12-02 01:38:29,303 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/ab185261b/46dbcedfc0b442b18f10458b8c420c14/FLAGd2a2e7d50 [2018-12-02 01:38:29,710 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/ab185261b/46dbcedfc0b442b18f10458b8c420c14 [2018-12-02 01:38:29,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 01:38:29,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 01:38:29,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 01:38:29,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 01:38:29,718 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 01:38:29,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550eb617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29, skipping insertion in model container [2018-12-02 01:38:29,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 01:38:29,741 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 01:38:29,834 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:38:29,837 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 01:38:29,854 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:38:29,866 INFO L195 MainTranslator]: Completed translation [2018-12-02 01:38:29,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29 WrapperNode [2018-12-02 01:38:29,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 01:38:29,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 01:38:29,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 01:38:29,867 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 01:38:29,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 01:38:29,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 01:38:29,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 01:38:29,910 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 01:38:29,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... [2018-12-02 01:38:29,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 01:38:29,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 01:38:29,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 01:38:29,936 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 01:38:29,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 01:38:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 01:38:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 01:38:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 01:38:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 01:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 01:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 01:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-02 01:38:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-02 01:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-12-02 01:38:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-12-02 01:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 01:38:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 01:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 01:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 01:38:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 01:38:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 01:38:30,127 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 01:38:30,127 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 01:38:30,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:30 BoogieIcfgContainer [2018-12-02 01:38:30,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 01:38:30,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 01:38:30,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 01:38:30,130 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 01:38:30,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:38:29" (1/3) ... [2018-12-02 01:38:30,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4b4bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:30, skipping insertion in model container [2018-12-02 01:38:30,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:29" (2/3) ... [2018-12-02 01:38:30,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4b4bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:30, skipping insertion in model container [2018-12-02 01:38:30,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:30" (3/3) ... [2018-12-02 01:38:30,132 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c_true-unreach-call.c [2018-12-02 01:38:30,137 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 01:38:30,141 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 01:38:30,150 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 01:38:30,166 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 01:38:30,167 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 01:38:30,167 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 01:38:30,167 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 01:38:30,167 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 01:38:30,167 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 01:38:30,167 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 01:38:30,167 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 01:38:30,167 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 01:38:30,178 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-02 01:38:30,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 01:38:30,181 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:30,182 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:30,183 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:30,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:30,186 INFO L82 PathProgramCache]: Analyzing trace with hash -288864886, now seen corresponding path program 1 times [2018-12-02 01:38:30,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 01:38:30,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 01:38:30,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:30,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:30,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:30,265 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 01:38:30,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:30,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 01:38:30,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 01:38:30,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 01:38:30,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 01:38:30,277 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-02 01:38:30,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:30,290 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2018-12-02 01:38:30,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 01:38:30,291 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-02 01:38:30,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:30,296 INFO L225 Difference]: With dead ends: 76 [2018-12-02 01:38:30,296 INFO L226 Difference]: Without dead ends: 38 [2018-12-02 01:38:30,298 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 01:38:30,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-02 01:38:30,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-02 01:38:30,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 01:38:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-12-02 01:38:30,319 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25 [2018-12-02 01:38:30,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:30,319 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-12-02 01:38:30,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 01:38:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-12-02 01:38:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 01:38:30,320 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:30,320 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 01:38:30,320 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:30,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:30,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1876368369, now seen corresponding path program 1 times [2018-12-02 01:38:30,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 01:38:30,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 01:38:30,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:30,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:30,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:38:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:38:30,399 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 01:38:30,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:38:30 BoogieIcfgContainer [2018-12-02 01:38:30,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 01:38:30,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 01:38:30,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 01:38:30,417 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 01:38:30,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:30" (3/4) ... [2018-12-02 01:38:30,419 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 01:38:30,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 01:38:30,420 INFO L168 Benchmark]: Toolchain (without parser) took 706.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -86.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:30,421 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:38:30,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.32 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 939.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:30,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:30,422 INFO L168 Benchmark]: Boogie Preprocessor took 25.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:30,422 INFO L168 Benchmark]: RCFGBuilder took 191.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:30,422 INFO L168 Benchmark]: TraceAbstraction took 288.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:30,423 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:30,424 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.32 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 939.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 288.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 31, overapproximation of bitwiseOr at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = 1.0 / 0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=15032385538] [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; VAL [\old(x)=15032385538, x=15032385538] [L18] ieee_double_shape_type ew_u; [L19] ew_u.value = (x) [L20] EXPR ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L24] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L25] COND FALSE !(exponent_less_1023 < 0) [L31] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L32] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L33] return x; VAL [\old(x)=15032385538, \result=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L87] RET, EXPR round_double(x) VAL [round_double(x)=15032385538, x=15032385538] [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) VAL [\old(x)=15032385538] [L65] __int32_t hx, lx; VAL [\old(x)=15032385538, x=15032385538] [L67] ieee_double_shape_type ew_u; [L68] ew_u.value = (x) [L69] EXPR ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=15032385538, \result=0, hx=2146435072, lx=-2147483648, x=15032385538] [L90] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, res=15032385538, x=15032385538] [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() VAL [res=15032385538, x=15032385538] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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 01:38:31,787 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 01:38:31,788 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 01:38:31,794 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 01:38:31,794 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 01:38:31,795 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 01:38:31,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 01:38:31,796 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 01:38:31,797 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 01:38:31,797 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 01:38:31,798 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 01:38:31,798 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 01:38:31,798 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 01:38:31,799 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 01:38:31,799 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 01:38:31,800 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 01:38:31,800 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 01:38:31,801 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 01:38:31,802 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 01:38:31,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 01:38:31,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 01:38:31,803 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 01:38:31,804 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 01:38:31,805 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 01:38:31,805 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 01:38:31,805 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 01:38:31,806 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 01:38:31,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 01:38:31,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 01:38:31,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 01:38:31,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 01:38:31,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 01:38:31,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 01:38:31,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 01:38:31,808 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 01:38:31,808 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 01:38:31,809 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 01:38:31,816 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 01:38:31,816 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 01:38:31,816 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 01:38:31,816 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 01:38:31,817 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 01:38:31,817 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 01:38:31,817 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 01:38:31,817 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 01:38:31,817 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 01:38:31,817 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 01:38:31,817 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 01:38:31,818 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 01:38:31,818 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 01:38:31,819 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 01:38:31,819 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 01:38:31,819 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_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 -> 8f0f6d97fc2d864b12fa51362458c8047d27a6c8 [2018-12-02 01:38:31,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 01:38:31,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 01:38:31,850 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 01:38:31,851 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 01:38:31,852 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 01:38:31,852 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-12-02 01:38:31,891 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/ca1f1349d/8fa7044c212a4ecfb09c2a0e789b7c88/FLAGddf99343c [2018-12-02 01:38:32,260 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 01:38:32,261 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/sv-benchmarks/c/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-12-02 01:38:32,264 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/ca1f1349d/8fa7044c212a4ecfb09c2a0e789b7c88/FLAGddf99343c [2018-12-02 01:38:32,628 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/data/ca1f1349d/8fa7044c212a4ecfb09c2a0e789b7c88 [2018-12-02 01:38:32,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 01:38:32,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 01:38:32,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 01:38:32,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 01:38:32,633 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 01:38:32,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,635 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 01:38:32, skipping insertion in model container [2018-12-02 01:38:32,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 01:38:32,650 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 01:38:32,747 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:38:32,750 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 01:38:32,770 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:38:32,787 INFO L195 MainTranslator]: Completed translation [2018-12-02 01:38:32,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32 WrapperNode [2018-12-02 01:38:32,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 01:38:32,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 01:38:32,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 01:38:32,788 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 01:38:32,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 01:38:32,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 01:38:32,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 01:38:32,804 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 01:38:32,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... [2018-12-02 01:38:32,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 01:38:32,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 01:38:32,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 01:38:32,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 01:38:32,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 01:38:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-02 01:38:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 01:38:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 01:38:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 01:38:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 01:38:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-02 01:38:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-02 01:38:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-02 01:38:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-12-02 01:38:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-12-02 01:38:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 01:38:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 01:38:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 01:38:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 01:38:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 01:38:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 01:38:33,008 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 01:38:33,090 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 01:38:33,202 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 01:38:33,202 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 01:38:33,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:33 BoogieIcfgContainer [2018-12-02 01:38:33,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 01:38:33,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 01:38:33,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 01:38:33,205 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 01:38:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:38:32" (1/3) ... [2018-12-02 01:38:33,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae43b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:33, skipping insertion in model container [2018-12-02 01:38:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:32" (2/3) ... [2018-12-02 01:38:33,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae43b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:33, skipping insertion in model container [2018-12-02 01:38:33,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:33" (3/3) ... [2018-12-02 01:38:33,207 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c_true-unreach-call.c [2018-12-02 01:38:33,212 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 01:38:33,217 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 01:38:33,225 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 01:38:33,242 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 01:38:33,242 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 01:38:33,242 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 01:38:33,242 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 01:38:33,242 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 01:38:33,242 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 01:38:33,242 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 01:38:33,243 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 01:38:33,243 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 01:38:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-02 01:38:33,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 01:38:33,255 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:33,255 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 01:38:33,256 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:33,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:33,259 INFO L82 PathProgramCache]: Analyzing trace with hash -16968872, now seen corresponding path program 1 times [2018-12-02 01:38:33,262 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 01:38:33,262 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 01:38:33,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:33,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:38:33,317 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 01:38:33,318 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 01:38:33,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:33,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 01:38:33,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 01:38:33,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 01:38:33,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 01:38:33,337 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-12-02 01:38:33,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:33,349 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2018-12-02 01:38:33,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 01:38:33,350 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-02 01:38:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:33,355 INFO L225 Difference]: With dead ends: 74 [2018-12-02 01:38:33,355 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 01:38:33,357 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 01:38:33,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 01:38:33,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-02 01:38:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 01:38:33,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-12-02 01:38:33,379 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 24 [2018-12-02 01:38:33,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:33,379 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-12-02 01:38:33,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 01:38:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-12-02 01:38:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 01:38:33,380 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:33,380 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 01:38:33,380 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:33,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:33,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1528384495, now seen corresponding path program 1 times [2018-12-02 01:38:33,381 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 01:38:33,381 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 01:38:33,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:33,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:38:33,560 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 01:38:33,560 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 01:38:33,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:33,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 01:38:33,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 01:38:33,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 01:38:33,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:38:33,570 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-12-02 01:38:34,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:34,452 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2018-12-02 01:38:34,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 01:38:34,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-02 01:38:34,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:34,454 INFO L225 Difference]: With dead ends: 63 [2018-12-02 01:38:34,455 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 01:38:34,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-12-02 01:38:34,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 01:38:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2018-12-02 01:38:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-02 01:38:34,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-12-02 01:38:34,458 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-12-02 01:38:34,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:34,459 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-12-02 01:38:34,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 01:38:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-12-02 01:38:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 01:38:34,459 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:34,459 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 01:38:34,460 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:34,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:34,460 INFO L82 PathProgramCache]: Analyzing trace with hash 707416066, now seen corresponding path program 1 times [2018-12-02 01:38:34,460 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 01:38:34,460 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 01:38:34,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:34,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:38:35,319 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 01:38:35,320 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 01:38:35,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-12-02 01:38:35,367 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 35 [2018-12-02 01:38:35,368 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 01:38:35,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-12-02 01:38:35,396 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-12-02 01:38:35,397 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 01:38:35,402 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 01:38:35,407 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 01:38:35,416 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 01:38:35,416 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:18 [2018-12-02 01:38:35,993 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 01:38:35,993 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 01:38:36,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:36,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-02 01:38:36,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 01:38:36,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 01:38:36,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-02 01:38:36,002 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 11 states. [2018-12-02 01:38:37,032 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-02 01:38:39,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:39,012 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-12-02 01:38:39,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 01:38:39,013 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-02 01:38:39,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:39,013 INFO L225 Difference]: With dead ends: 42 [2018-12-02 01:38:39,013 INFO L226 Difference]: Without dead ends: 35 [2018-12-02 01:38:39,014 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-02 01:38:39,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-02 01:38:39,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-12-02 01:38:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-02 01:38:39,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-12-02 01:38:39,019 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2018-12-02 01:38:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:39,019 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-12-02 01:38:39,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 01:38:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-12-02 01:38:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 01:38:39,019 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:39,020 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:39,020 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:39,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:39,020 INFO L82 PathProgramCache]: Analyzing trace with hash 414013059, now seen corresponding path program 1 times [2018-12-02 01:38:39,020 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 01:38:39,020 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/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 01:38:39,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:39,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:38:39,147 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 01:38:39,147 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 01:38:39,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:39,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 01:38:39,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 01:38:39,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 01:38:39,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:38:39,156 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 7 states. [2018-12-02 01:38:39,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:39,742 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-12-02 01:38:39,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 01:38:39,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-02 01:38:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:39,743 INFO L225 Difference]: With dead ends: 41 [2018-12-02 01:38:39,743 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 01:38:39,744 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-12-02 01:38:39,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 01:38:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 01:38:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 01:38:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 01:38:39,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-02 01:38:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:39,744 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 01:38:39,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 01:38:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 01:38:39,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 01:38:39,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 01:38:39,796 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 01:38:39,796 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 01:38:39,796 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 01:38:39,796 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-12-02 01:38:39,796 INFO L444 ceAbstractionStarter]: At program point L66-2(lines 66 71) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L66-3(lines 66 71) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L451 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-12-02 01:38:39,797 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 14 61) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L54-2(lines 54 59) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 22) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 22) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 01:38:39,798 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-12-02 01:38:39,798 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-02 01:38:39,799 INFO L444 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-12-02 01:38:39,799 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-12-02 01:38:39,799 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-12-02 01:38:39,799 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2018-12-02 01:38:39,799 INFO L448 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-12-02 01:38:39,799 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-12-02 01:38:39,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:38:39 BoogieIcfgContainer [2018-12-02 01:38:39,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 01:38:39,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 01:38:39,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 01:38:39,809 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 01:38:39,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:33" (3/4) ... [2018-12-02 01:38:39,813 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 01:38:39,819 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 01:38:39,819 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-12-02 01:38:39,819 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-12-02 01:38:39,819 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 01:38:39,824 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 01:38:39,824 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 01:38:39,824 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 01:38:39,844 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 01:38:39,844 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-02 01:38:39,864 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_63ee09f4-9b75-492d-b2a2-796b4e3fa45a/bin-2019/uautomizer/witness.graphml [2018-12-02 01:38:39,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 01:38:39,865 INFO L168 Benchmark]: Toolchain (without parser) took 7234.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.4 MB in the beginning and 910.9 MB in the end (delta: 32.5 MB). Peak memory consumption was 179.3 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:39,866 INFO L168 Benchmark]: CDTParser took 0.17 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 01:38:39,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.77 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 01:38:39,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.16 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 01:38:39,866 INFO L168 Benchmark]: Boogie Preprocessor took 66.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -208.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:39,867 INFO L168 Benchmark]: RCFGBuilder took 332.15 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:39,867 INFO L168 Benchmark]: TraceAbstraction took 6605.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.9 MB in the end (delta: 193.6 MB). Peak memory consumption was 193.6 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:39,867 INFO L168 Benchmark]: Witness Printer took 55.31 ms. Allocated memory is still 1.2 GB. Free memory is still 910.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:38:39,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.77 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 16.16 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 66.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -208.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 332.15 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6605.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.9 MB in the end (delta: 193.6 MB). Peak memory consumption was 193.6 MB. Max. memory is 11.5 GB. * Witness Printer took 55.31 ms. Allocated memory is still 1.2 GB. Free memory is still 910.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 6.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 131 SDslu, 372 SDs, 0 SdLazy, 205 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 19 QuantifiedInterpolants, 15779 SizeOfPredicates, 14 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...