./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/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 e20164d66b413fd1e6480d779b873570f1c551b2 .......................................................................................................................................................................................................................................................................................................................................................................................................................... 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_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/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 e20164d66b413fd1e6480d779b873570f1c551b2 ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 15:10:36,836 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:10:36,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:10:36,844 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:10:36,844 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:10:36,845 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:10:36,846 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:10:36,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:10:36,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:10:36,848 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:10:36,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:10:36,849 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:10:36,850 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:10:36,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:10:36,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:10:36,852 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:10:36,853 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:10:36,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:10:36,855 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:10:36,856 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:10:36,857 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:10:36,858 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:10:36,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:10:36,859 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:10:36,859 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:10:36,860 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:10:36,860 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:10:36,861 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:10:36,862 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:10:36,862 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:10:36,862 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:10:36,863 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:10:36,863 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:10:36,863 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:10:36,864 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:10:36,864 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:10:36,864 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 15:10:36,873 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:10:36,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:10:36,874 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:10:36,874 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:10:36,874 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:10:36,875 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:10:36,875 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:10:36,875 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:10:36,875 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:10:36,875 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:10:36,875 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:10:36,875 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:10:36,876 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:10:36,876 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:10:36,876 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:10:36,876 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:10:36,876 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:10:36,876 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:10:36,876 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:10:36,876 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:10:36,877 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:10:36,877 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:10:36,877 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:10:36,877 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:10:36,877 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:10:36,877 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:10:36,877 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:10:36,878 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 15:10:36,878 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:10:36,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:10:36,878 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_93d4ff89-72d9-4933-81a9-08efffb61ade/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-11-23 15:10:36,905 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:10:36,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:10:36,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:10:36,915 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:10:36,915 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:10:36,915 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-23 15:10:36,950 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/41208335f/b44e90af8c5c4fa7a50c01477e9d01f4/FLAG71f069d25 [2018-11-23 15:10:37,356 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:10:37,356 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-23 15:10:37,360 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/41208335f/b44e90af8c5c4fa7a50c01477e9d01f4/FLAG71f069d25 [2018-11-23 15:10:37,368 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/41208335f/b44e90af8c5c4fa7a50c01477e9d01f4 [2018-11-23 15:10:37,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:10:37,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:10:37,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:10:37,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:10:37,374 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:10:37,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e234a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37, skipping insertion in model container [2018-11-23 15:10:37,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:10:37,394 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:10:37,490 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:10:37,493 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:10:37,501 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:10:37,509 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:10:37,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37 WrapperNode [2018-11-23 15:10:37,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:10:37,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:10:37,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:10:37,510 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:10:37,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:10:37,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:10:37,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:10:37,528 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:10:37,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... [2018-11-23 15:10:37,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:10:37,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:10:37,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:10:37,544 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:10:37,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/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 [2018-11-23 15:10:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:10:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:10:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:10:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:10:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:10:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:10:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 15:10:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 15:10:37,714 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:10:37,714 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 15:10:37,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:37 BoogieIcfgContainer [2018-11-23 15:10:37,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:10:37,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:10:37,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:10:37,718 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:10:37,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:37" (1/3) ... [2018-11-23 15:10:37,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aea34f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:37, skipping insertion in model container [2018-11-23 15:10:37,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:37" (2/3) ... [2018-11-23 15:10:37,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aea34f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:37, skipping insertion in model container [2018-11-23 15:10:37,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:37" (3/3) ... [2018-11-23 15:10:37,721 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-11-23 15:10:37,729 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:10:37,736 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:10:37,750 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:10:37,776 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:10:37,777 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:10:37,777 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:10:37,777 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:10:37,777 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:10:37,777 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:10:37,777 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:10:37,777 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:10:37,777 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:10:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 15:10:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 15:10:37,796 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:10:37,797 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:10:37,799 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:10:37,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:10:37,803 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-23 15:10:37,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:10:37,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:10:37,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:10:37,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:10:37,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:10:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:10:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:10:37,890 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #20#return; [?] CALL call #t~ret0 := main(); [?] havoc ~x~0;havoc ~y~0;havoc ~z~0;havoc ~r~0;~x~0 := 1.0E8;~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1));~z~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1));~r~0 := ~someBinaryArithmeticDOUBLEoperation(~y~0, ~z~0); VAL [main_~x~0=100000000.0] [?] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~r~0, 2.0) then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L8] havoc ~x~0; [L8] havoc ~y~0; [L8] havoc ~z~0; [L8] havoc ~r~0; [L10] ~x~0 := 1.0E8; [L11] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L12] ~z~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L13] ~r~0 := ~someBinaryArithmeticDOUBLEoperation(~y~0, ~z~0); VAL [~x~0=1.0E8] [L14] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~r~0, 2.0) then 1 else 0)); VAL [#in~cond=0] [L4] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L4] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L4] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L8] havoc ~x~0; [L8] havoc ~y~0; [L8] havoc ~z~0; [L8] havoc ~r~0; [L10] ~x~0 := 1.0E8; [L11] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L12] ~z~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L13] ~r~0 := ~someBinaryArithmeticDOUBLEoperation(~y~0, ~z~0); VAL [~x~0=1.0E8] [L14] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~r~0, 2.0) then 1 else 0)); VAL [#in~cond=0] [L4] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L4] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L4] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L8] havoc ~x~0; [L8] havoc ~y~0; [L8] havoc ~z~0; [L8] havoc ~r~0; [L10] ~x~0 := 1.0E8; [L11] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L12] ~z~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L13] ~r~0 := ~someBinaryArithmeticDOUBLEoperation(~y~0, ~z~0); VAL [~x~0=1.0E8] [L14] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~r~0, 2.0) then 1 else 0)); VAL [#in~cond=0] [L4] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L4] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L8] havoc ~x~0; [L8] havoc ~y~0; [L8] havoc ~z~0; [L8] havoc ~r~0; [L10] ~x~0 := 1.0E8; [L11] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L12] ~z~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L13] ~r~0 := ~someBinaryArithmeticDOUBLEoperation(~y~0, ~z~0); VAL [~x~0=1.0E8] [L14] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~r~0, 2.0) then 1 else 0)); VAL [#in~cond=0] [L4] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L4] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L8] havoc ~x~0; [L8] havoc ~y~0; [L8] havoc ~z~0; [L8] havoc ~r~0; [L10] ~x~0 := 1.0E8; [L11] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L12] ~z~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L13] ~r~0 := ~someBinaryArithmeticDOUBLEoperation(~y~0, ~z~0); VAL [~x~0=1.0E8] [L14] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~r~0, 2.0) then 1 else 0)); VAL [#in~cond=0] [L4] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L4] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L8] havoc ~x~0; [L8] havoc ~y~0; [L8] havoc ~z~0; [L8] havoc ~r~0; [L10] ~x~0 := 1.0E8; [L11] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L12] ~z~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, ~convertINTToDOUBLE(1)); [L13] ~r~0 := ~someBinaryArithmeticDOUBLEoperation(~y~0, ~z~0); VAL [~x~0=1.0E8] [L14] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~r~0, 2.0) then 1 else 0)); VAL [#in~cond=0] [L4] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L4] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L4] assert false; VAL [#in~cond=0, ~cond=0] [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z VAL [x=100000000] [L14] CALL __VERIFIER_assert(r == 2.) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 15:10:37,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:10:37 BoogieIcfgContainer [2018-11-23 15:10:37,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:10:37,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:10:37,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:10:37,908 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:10:37,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:37" (3/4) ... [2018-11-23 15:10:37,911 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 15:10:37,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:10:37,912 INFO L168 Benchmark]: Toolchain (without parser) took 541.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -126.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:10:37,913 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:10:37,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.54 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:37,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.91 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:10:37,914 INFO L168 Benchmark]: Boogie Preprocessor took 15.93 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:37,914 INFO L168 Benchmark]: RCFGBuilder took 170.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:37,915 INFO L168 Benchmark]: TraceAbstraction took 192.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:37,916 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:10:37,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.54 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.91 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.93 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 192.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z VAL [x=100000000] [L14] CALL __VERIFIER_assert(r == 2.) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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-aa41828 [2018-11-23 15:10:39,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:10:39,314 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:10:39,323 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:10:39,323 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:10:39,324 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:10:39,325 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:10:39,326 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:10:39,327 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:10:39,328 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:10:39,328 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:10:39,328 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:10:39,329 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:10:39,330 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:10:39,331 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:10:39,332 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:10:39,332 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:10:39,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:10:39,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:10:39,336 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:10:39,337 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:10:39,338 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:10:39,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:10:39,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:10:39,340 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:10:39,341 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:10:39,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:10:39,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:10:39,343 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:10:39,344 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:10:39,344 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:10:39,344 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:10:39,344 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:10:39,345 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:10:39,345 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:10:39,346 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:10:39,346 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 15:10:39,357 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:10:39,357 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:10:39,358 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:10:39,358 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:10:39,359 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:10:39,359 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:10:39,359 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:10:39,359 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:10:39,359 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:10:39,359 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:10:39,360 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:10:39,361 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:10:39,361 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:10:39,361 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:10:39,361 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:10:39,361 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:10:39,361 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:10:39,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:10:39,362 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:10:39,362 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:10:39,362 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:10:39,362 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 15:10:39,362 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:10:39,364 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 15:10:39,365 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 15:10:39,365 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_93d4ff89-72d9-4933-81a9-08efffb61ade/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-11-23 15:10:39,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:10:39,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:10:39,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:10:39,408 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:10:39,409 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:10:39,409 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-23 15:10:39,455 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/72786a1f4/60330341b3cd46b5a2c58a58c6d7b5f1/FLAG8f9c6fb7e [2018-11-23 15:10:39,777 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:10:39,777 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-23 15:10:39,780 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/72786a1f4/60330341b3cd46b5a2c58a58c6d7b5f1/FLAG8f9c6fb7e [2018-11-23 15:10:40,217 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/data/72786a1f4/60330341b3cd46b5a2c58a58c6d7b5f1 [2018-11-23 15:10:40,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:10:40,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:10:40,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:10:40,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:10:40,222 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:10:40,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e4942f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40, skipping insertion in model container [2018-11-23 15:10:40,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:10:40,243 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:10:40,370 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:10:40,375 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:10:40,387 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:10:40,397 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:10:40,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40 WrapperNode [2018-11-23 15:10:40,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:10:40,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:10:40,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:10:40,398 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:10:40,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:10:40,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:10:40,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:10:40,413 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:10:40,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... [2018-11-23 15:10:40,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:10:40,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:10:40,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:10:40,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:10:40,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/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 [2018-11-23 15:10:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:10:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:10:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:10:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:10:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:10:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:10:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 15:10:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 15:10:40,649 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:10:40,649 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 15:10:40,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:40 BoogieIcfgContainer [2018-11-23 15:10:40,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:10:40,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:10:40,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:10:40,652 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:10:40,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:40" (1/3) ... [2018-11-23 15:10:40,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f530074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:40, skipping insertion in model container [2018-11-23 15:10:40,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:40" (2/3) ... [2018-11-23 15:10:40,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f530074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:40, skipping insertion in model container [2018-11-23 15:10:40,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:40" (3/3) ... [2018-11-23 15:10:40,655 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-11-23 15:10:40,663 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:10:40,667 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:10:40,676 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:10:40,694 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:10:40,694 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:10:40,695 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:10:40,695 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:10:40,695 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:10:40,695 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:10:40,695 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:10:40,695 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:10:40,695 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:10:40,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 15:10:40,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 15:10:40,713 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:10:40,713 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:10:40,715 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:10:40,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:10:40,718 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-23 15:10:40,721 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:10:40,721 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/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 [2018-11-23 15:10:40,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:10:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:10:40,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:10:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:10:40,984 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:10:41,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:10:41,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 15:10:41,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 15:10:41,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 15:10:41,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:10:41,013 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-23 15:10:41,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:10:41,048 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-23 15:10:41,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:10:41,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-23 15:10:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:10:41,054 INFO L225 Difference]: With dead ends: 24 [2018-11-23 15:10:41,054 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 15:10:41,056 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:10:41,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 15:10:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 15:10:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 15:10:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 15:10:41,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-23 15:10:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:10:41,072 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:10:41,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 15:10:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 15:10:41,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 15:10:41,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 15:10:41,108 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 15:10:41,108 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:10:41,108 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:10:41,108 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 15:10:41,108 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 15:10:41,109 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:10:41,109 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 .cse1) (fp.sub roundNearestTiesToEven .cse0 .cse1))) main_~r~0) [2018-11-23 15:10:41,109 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-23 15:10:41,109 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-23 15:10:41,109 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-23 15:10:41,109 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-23 15:10:41,109 INFO L448 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-23 15:10:41,110 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-23 15:10:41,110 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-23 15:10:41,110 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-23 15:10:41,110 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-23 15:10:41,110 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-23 15:10:41,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:10:41 BoogieIcfgContainer [2018-11-23 15:10:41,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:10:41,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:10:41,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:10:41,113 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:10:41,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:40" (3/4) ... [2018-11-23 15:10:41,117 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 15:10:41,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 15:10:41,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 15:10:41,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 15:10:41,126 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 15:10:41,126 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 15:10:41,126 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 15:10:41,126 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 15:10:41,149 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_93d4ff89-72d9-4933-81a9-08efffb61ade/bin-2019/uautomizer/witness.graphml [2018-11-23 15:10:41,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:10:41,150 INFO L168 Benchmark]: Toolchain (without parser) took 930.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -97.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:41,150 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-23 15:10:41,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.03 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:41,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.42 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:41,152 INFO L168 Benchmark]: Boogie Preprocessor took 16.21 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:10:41,152 INFO L168 Benchmark]: RCFGBuilder took 219.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:41,152 INFO L168 Benchmark]: TraceAbstraction took 462.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:41,153 INFO L168 Benchmark]: Witness Printer took 36.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-23 15:10:41,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.03 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.42 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.21 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 219.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 462.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Witness Printer took 36.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...