./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 ........................................................................................................................................................................................................................................................................................................ 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_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:36:17,857 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:36:17,858 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:36:17,865 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:36:17,865 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:36:17,866 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:36:17,867 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:36:17,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:36:17,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:36:17,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:36:17,870 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:36:17,871 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:36:17,871 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:36:17,872 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:36:17,872 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:36:17,873 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:36:17,873 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:36:17,874 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:36:17,876 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:36:17,876 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:36:17,877 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:36:17,878 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:36:17,879 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:36:17,879 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:36:17,879 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:36:17,879 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:36:17,880 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:36:17,880 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:36:17,881 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:36:17,882 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:36:17,882 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:36:17,882 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:36:17,882 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:36:17,883 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:36:17,883 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:36:17,884 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:36:17,884 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 10:36:17,891 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:36:17,892 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:36:17,892 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:36:17,892 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 10:36:17,893 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 10:36:17,893 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:36:17,893 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:36:17,894 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:36:17,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:36:17,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:36:17,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:36:17,894 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:36:17,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:36:17,894 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:36:17,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:36:17,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:36:17,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:36:17,895 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:36:17,895 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 10:36:17,895 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:36:17,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:36:17,896 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_1c612896-2537-4e40-990d-3de1554d413d/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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2018-11-10 10:36:17,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:36:17,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:36:17,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:36:17,934 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:36:17,934 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:36:17,935 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-10 10:36:17,982 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/e5b304d93/1721b8485f55419b8d4b389e12859199/FLAG5f24119a6 [2018-11-10 10:36:18,387 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:36:18,387 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-10 10:36:18,391 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/e5b304d93/1721b8485f55419b8d4b389e12859199/FLAG5f24119a6 [2018-11-10 10:36:18,401 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/e5b304d93/1721b8485f55419b8d4b389e12859199 [2018-11-10 10:36:18,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:36:18,405 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 10:36:18,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:36:18,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:36:18,409 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:36:18,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce791db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18, skipping insertion in model container [2018-11-10 10:36:18,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:36:18,436 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:36:18,550 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:36:18,551 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:36:18,567 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:36:18,581 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:36:18,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18 WrapperNode [2018-11-10 10:36:18,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:36:18,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:36:18,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:36:18,582 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:36:18,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... [2018-11-10 10:36:18,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:36:18,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:36:18,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:36:18,610 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:36:18,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 [2018-11-10 10:36:18,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:36:18,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:36:18,687 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 10:36:18,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 10:36:18,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:36:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 10:36:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 10:36:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 10:36:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-10 10:36:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 10:36:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-10 10:36:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 10:36:18,855 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:36:18,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:36:18 BoogieIcfgContainer [2018-11-10 10:36:18,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:36:18,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:36:18,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:36:18,859 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:36:18,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:36:18" (1/3) ... [2018-11-10 10:36:18,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1942b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:36:18, skipping insertion in model container [2018-11-10 10:36:18,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:18" (2/3) ... [2018-11-10 10:36:18,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1942b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:36:18, skipping insertion in model container [2018-11-10 10:36:18,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:36:18" (3/3) ... [2018-11-10 10:36:18,861 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031_true-unreach-call.c [2018-11-10 10:36:18,867 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:36:18,871 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:36:18,882 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:36:18,903 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:36:18,904 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:36:18,904 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:36:18,904 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:36:18,904 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:36:18,904 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:36:18,904 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:36:18,904 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:36:18,904 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:36:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-10 10:36:18,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 10:36:18,919 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:36:18,920 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:36:18,921 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:36:18,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:36:18,925 INFO L82 PathProgramCache]: Analyzing trace with hash -618862010, now seen corresponding path program 1 times [2018-11-10 10:36:18,926 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:36:18,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:36:18,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:36:18,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:36:18,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:36:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:36:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:36:19,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:36:19,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:36:19,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:36:19,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:36:19,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:36:19,032 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-10 10:36:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:36:19,046 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2018-11-10 10:36:19,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:36:19,047 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-10 10:36:19,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:36:19,055 INFO L225 Difference]: With dead ends: 92 [2018-11-10 10:36:19,055 INFO L226 Difference]: Without dead ends: 46 [2018-11-10 10:36:19,057 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:36:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-10 10:36:19,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-10 10:36:19,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-10 10:36:19,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-11-10 10:36:19,084 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 22 [2018-11-10 10:36:19,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:36:19,085 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-11-10 10:36:19,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:36:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-11-10 10:36:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 10:36:19,086 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:36:19,086 INFO L375 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, 1, 1, 1, 1] [2018-11-10 10:36:19,086 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:36:19,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:36:19,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1742972752, now seen corresponding path program 1 times [2018-11-10 10:36:19,087 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:36:19,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:36:19,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:36:19,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:36:19,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:36:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:36:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:36:19,166 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:36:19,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:36:19 BoogieIcfgContainer [2018-11-10 10:36:19,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:36:19,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:36:19,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:36:19,185 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:36:19,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:36:18" (3/4) ... [2018-11-10 10:36:19,188 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 10:36:19,188 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:36:19,189 INFO L168 Benchmark]: Toolchain (without parser) took 784.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:19,190 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:36:19,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.45 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:19,190 INFO L168 Benchmark]: Boogie Preprocessor took 28.19 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:19,191 INFO L168 Benchmark]: RCFGBuilder took 245.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:19,191 INFO L168 Benchmark]: TraceAbstraction took 328.47 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:19,192 INFO L168 Benchmark]: Witness Printer took 3.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:36:19,194 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.45 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.19 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 328.47 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L66] CALL, EXPR round_float(x) VAL [\old(x)=8] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=8, x=8] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=8, gf_u={5:0}, x=8] [L18] FCALL gf_u.value = (x) VAL [\old(x)=8, gf_u={5:0}, x=8] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=8, gf_u={5:0}, gf_u.word=9, x=8] [L19] (w) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=8, w=9, x=8] [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L40] COND TRUE exponent_less_127 == 128 [L42] RET return x + x; VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L66] EXPR round_float(x) VAL [round_float(x)=7, x=8] [L66] float res = round_float(x); [L69] CALL, EXPR isnan_float(res) VAL [\old(x)=7] [L55] RET return x != x; VAL [\old(x)=7, \result=0, x=7] [L69] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=7, x=8] [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() VAL [res=7, x=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 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=50occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-1dbac8b [2018-11-10 10:36:20,649 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:36:20,650 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:36:20,658 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:36:20,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:36:20,659 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:36:20,660 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:36:20,661 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:36:20,662 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:36:20,663 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:36:20,663 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:36:20,664 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:36:20,664 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:36:20,665 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:36:20,666 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:36:20,666 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:36:20,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:36:20,668 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:36:20,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:36:20,671 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:36:20,671 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:36:20,672 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:36:20,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:36:20,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:36:20,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:36:20,675 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:36:20,676 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:36:20,676 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:36:20,677 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:36:20,678 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:36:20,678 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:36:20,678 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:36:20,678 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:36:20,679 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:36:20,679 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:36:20,680 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:36:20,680 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 10:36:20,691 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:36:20,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:36:20,692 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:36:20,692 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 10:36:20,693 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 10:36:20,693 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 10:36:20,693 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 10:36:20,693 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:36:20,694 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:36:20,694 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:36:20,694 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:36:20,694 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:36:20,694 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:36:20,694 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:36:20,694 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 10:36:20,695 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 10:36:20,695 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:36:20,695 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:36:20,695 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:36:20,695 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:36:20,695 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:36:20,695 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:36:20,696 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:36:20,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:36:20,696 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:36:20,696 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:36:20,696 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:36:20,696 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 10:36:20,696 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:36:20,697 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 10:36:20,697 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 10:36:20,697 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_1c612896-2537-4e40-990d-3de1554d413d/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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2018-11-10 10:36:20,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:36:20,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:36:20,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:36:20,738 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:36:20,738 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:36:20,739 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-10 10:36:20,779 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/868aa5a53/334d6bd92ab540939702a3c5bbd94d5c/FLAGedb0431cb [2018-11-10 10:36:21,110 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:36:21,110 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-10 10:36:21,115 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/868aa5a53/334d6bd92ab540939702a3c5bbd94d5c/FLAGedb0431cb [2018-11-10 10:36:21,124 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/data/868aa5a53/334d6bd92ab540939702a3c5bbd94d5c [2018-11-10 10:36:21,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:36:21,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 10:36:21,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:36:21,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:36:21,131 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:36:21,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de1527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21, skipping insertion in model container [2018-11-10 10:36:21,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:36:21,156 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:36:21,276 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:36:21,279 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:36:21,295 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:36:21,311 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:36:21,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21 WrapperNode [2018-11-10 10:36:21,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:36:21,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:36:21,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:36:21,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:36:21,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... [2018-11-10 10:36:21,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:36:21,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:36:21,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:36:21,339 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:36:21,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 [2018-11-10 10:36:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:36:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:36:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 10:36:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 10:36:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-10 10:36:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-10 10:36:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 10:36:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:36:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:36:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:36:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-10 10:36:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-10 10:36:21,581 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:36:21,587 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:36:21,651 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:36:21,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:36:21 BoogieIcfgContainer [2018-11-10 10:36:21,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:36:21,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:36:21,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:36:21,654 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:36:21,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:36:21" (1/3) ... [2018-11-10 10:36:21,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a16010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:36:21, skipping insertion in model container [2018-11-10 10:36:21,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:36:21" (2/3) ... [2018-11-10 10:36:21,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a16010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:36:21, skipping insertion in model container [2018-11-10 10:36:21,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:36:21" (3/3) ... [2018-11-10 10:36:21,656 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031_true-unreach-call.c [2018-11-10 10:36:21,662 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:36:21,667 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:36:21,677 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:36:21,696 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:36:21,697 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:36:21,697 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:36:21,697 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:36:21,697 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:36:21,697 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:36:21,697 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:36:21,697 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:36:21,697 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:36:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-10 10:36:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 10:36:21,714 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:36:21,715 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:36:21,716 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:36:21,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:36:21,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1468538689, now seen corresponding path program 1 times [2018-11-10 10:36:21,722 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:36:21,723 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 [2018-11-10 10:36:21,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:36:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:36:21,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:36:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:36:21,786 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:36:21,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:36:21,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:36:21,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:36:21,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:36:21,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:36:21,808 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-10 10:36:21,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:36:21,822 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2018-11-10 10:36:21,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:36:21,823 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 10:36:21,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:36:21,830 INFO L225 Difference]: With dead ends: 90 [2018-11-10 10:36:21,830 INFO L226 Difference]: Without dead ends: 45 [2018-11-10 10:36:21,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:36:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-10 10:36:21,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-10 10:36:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-10 10:36:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2018-11-10 10:36:21,859 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 21 [2018-11-10 10:36:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:36:21,860 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2018-11-10 10:36:21,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:36:21,860 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2018-11-10 10:36:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 10:36:21,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:36:21,861 INFO L375 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, 1, 1, 1] [2018-11-10 10:36:21,861 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:36:21,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:36:21,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1602380168, now seen corresponding path program 1 times [2018-11-10 10:36:21,862 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:36:21,862 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 [2018-11-10 10:36:21,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:36:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:36:21,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:36:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:36:22,426 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:36:22,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:36:22,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 10:36:22,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 10:36:22,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 10:36:22,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 10:36:22,439 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 9 states. [2018-11-10 10:36:22,806 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-10 10:36:23,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:36:23,397 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-11-10 10:36:23,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 10:36:23,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-10 10:36:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:36:23,399 INFO L225 Difference]: With dead ends: 54 [2018-11-10 10:36:23,399 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 10:36:23,400 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 10:36:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 10:36:23,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2018-11-10 10:36:23,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-10 10:36:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-11-10 10:36:23,408 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 30 [2018-11-10 10:36:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:36:23,408 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-11-10 10:36:23,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 10:36:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-11-10 10:36:23,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 10:36:23,409 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:36:23,409 INFO L375 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, 1, 1, 1] [2018-11-10 10:36:23,409 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:36:23,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:36:23,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1798893673, now seen corresponding path program 1 times [2018-11-10 10:36:23,410 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:36:23,410 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 [2018-11-10 10:36:23,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:36:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:36:23,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:36:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:36:23,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:36:23,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:36:23,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 10:36:23,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 10:36:23,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 10:36:23,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 10:36:23,545 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 9 states. [2018-11-10 10:36:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:36:23,767 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-10 10:36:23,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 10:36:23,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-10 10:36:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:36:23,769 INFO L225 Difference]: With dead ends: 52 [2018-11-10 10:36:23,769 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 10:36:23,770 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 10:36:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 10:36:23,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 10:36:23,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 10:36:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2018-11-10 10:36:23,775 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 30 [2018-11-10 10:36:23,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:36:23,776 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2018-11-10 10:36:23,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 10:36:23,776 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2018-11-10 10:36:23,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 10:36:23,777 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:36:23,777 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:36:23,777 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:36:23,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:36:23,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1268109596, now seen corresponding path program 1 times [2018-11-10 10:36:23,778 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:36:23,778 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/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 [2018-11-10 10:36:23,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:36:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:36:23,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:36:23,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-11-10 10:36:23,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 10:36:23,867 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 10:36:23,870 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 10:36:23,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 10:36:23,878 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-10 10:36:23,893 INFO L477 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 29 treesize of output 21 [2018-11-10 10:36:23,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-10 10:36:23,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 10:36:23,900 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 10:36:23,902 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 10:36:23,902 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-10 10:36:24,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:36:24,040 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:36:24,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:36:24,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 10:36:24,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 10:36:24,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 10:36:24,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 10:36:24,049 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 9 states. [2018-11-10 10:36:24,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:36:24,602 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-11-10 10:36:24,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 10:36:24,602 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-11-10 10:36:24,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:36:24,603 INFO L225 Difference]: With dead ends: 44 [2018-11-10 10:36:24,603 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 10:36:24,603 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-11-10 10:36:24,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 10:36:24,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 10:36:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 10:36:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 10:36:24,604 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-11-10 10:36:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:36:24,604 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 10:36:24,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 10:36:24,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 10:36:24,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 10:36:24,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 10:36:24,673 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 55) no Hoare annotation was computed. [2018-11-10 10:36:24,673 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 55) the Hoare annotation is: true [2018-11-10 10:36:24,673 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 55) no Hoare annotation was computed. [2018-11-10 10:36:24,673 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:36:24,673 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:36:24,673 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-11-10 10:36:24,674 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-10 10:36:24,675 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L46-2(lines 11 52) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2018-11-10 10:36:24,676 INFO L425 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-11-10 10:36:24,677 INFO L425 ceAbstractionStarter]: For program point L47-2(line 47) no Hoare annotation was computed. [2018-11-10 10:36:24,677 INFO L425 ceAbstractionStarter]: For program point L47-3(line 47) no Hoare annotation was computed. [2018-11-10 10:36:24,677 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:36:24,677 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 10:36:24,677 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:36:24,677 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:36:24,677 INFO L425 ceAbstractionStarter]: For program point L66-1(line 66) no Hoare annotation was computed. [2018-11-10 10:36:24,677 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 57 75) the Hoare annotation is: true [2018-11-10 10:36:24,677 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 57 75) no Hoare annotation was computed. [2018-11-10 10:36:24,678 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 57 75) no Hoare annotation was computed. [2018-11-10 10:36:24,678 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-10 10:36:24,678 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2018-11-10 10:36:24,678 INFO L421 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-11-10 10:36:24,678 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 69 72) no Hoare annotation was computed. [2018-11-10 10:36:24,678 INFO L421 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-11-10 10:36:24,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:36:24 BoogieIcfgContainer [2018-11-10 10:36:24,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:36:24,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:36:24,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:36:24,689 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:36:24,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:36:21" (3/4) ... [2018-11-10 10:36:24,693 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 10:36:24,699 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 10:36:24,699 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 10:36:24,700 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-10 10:36:24,700 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 10:36:24,703 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-10 10:36:24,704 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 10:36:24,704 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 10:36:24,727 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 10:36:24,742 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1c612896-2537-4e40-990d-3de1554d413d/bin-2019/uautomizer/witness.graphml [2018-11-10 10:36:24,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:36:24,743 INFO L168 Benchmark]: Toolchain (without parser) took 3616.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 955.1 MB in the beginning and 929.4 MB in the end (delta: 25.7 MB). Peak memory consumption was 150.5 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:24,743 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:36:24,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.21 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 939.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:24,744 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:36:24,744 INFO L168 Benchmark]: RCFGBuilder took 312.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:24,744 INFO L168 Benchmark]: TraceAbstraction took 3036.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 166.3 MB). Peak memory consumption was 166.3 MB. Max. memory is 11.5 GB. [2018-11-10 10:36:24,745 INFO L168 Benchmark]: Witness Printer took 53.00 ms. Allocated memory is still 1.2 GB. Free memory is still 929.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:36:24,746 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.21 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 939.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.70 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 312.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3036.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 166.3 MB). Peak memory consumption was 166.3 MB. Max. memory is 11.5 GB. * Witness Printer took 53.00 ms. Allocated memory is still 1.2 GB. Free memory is still 929.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 163 SDtfs, 74 SDslu, 640 SDs, 0 SdLazy, 187 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 119 ConstructedInterpolants, 16 QuantifiedInterpolants, 25014 SizeOfPredicates, 16 NumberOfNonLiveVariables, 250 ConjunctsInSsa, 32 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...