./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 04e5b929de4769f01a6c1d571d92eec73b544ab1 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 04e5b929de4769f01a6c1d571d92eec73b544ab1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:57:56,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:57:56,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:57:56,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:57:56,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:57:56,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:57:56,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:57:56,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:57:56,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:57:56,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:57:56,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:57:56,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:57:56,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:57:56,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:57:56,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:57:56,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:57:56,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:57:56,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:57:56,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:57:56,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:57:56,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:57:56,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:57:56,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:57:56,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:57:56,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:57:56,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:57:56,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:57:56,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:57:56,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:57:56,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:57:56,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:57:56,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:57:56,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:57:56,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:57:56,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:57:56,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:57:56,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:57:56,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:57:56,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:57:56,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:57:56,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:57:56,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:57:56,974 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:57:56,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:57:56,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:57:56,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:57:56,977 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:57:56,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:57:56,977 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:57:56,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:57:56,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:57:56,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:57:56,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:57:56,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:57:56,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:57:56,979 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:57:56,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:57:56,979 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:57:56,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:57:56,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:57:56,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:57:56,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:57:56,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:57:56,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:57:56,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:57:56,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:57:56,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:57:56,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:57:56,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:57:56,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:57:56,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 -> 04e5b929de4769f01a6c1d571d92eec73b544ab1 [2019-11-15 20:57:57,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:57:57,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:57:57,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:57:57,026 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:57:57,026 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:57:57,028 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-15 20:57:57,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/e2d95cf78/19a03568bb9c4376ad1d018adefdd533/FLAGa4eb9f101 [2019-11-15 20:57:57,510 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:57:57,511 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-15 20:57:57,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/e2d95cf78/19a03568bb9c4376ad1d018adefdd533/FLAGa4eb9f101 [2019-11-15 20:57:57,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/e2d95cf78/19a03568bb9c4376ad1d018adefdd533 [2019-11-15 20:57:57,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:57:57,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:57:57,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:57,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:57:57,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:57:57,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:57" (1/1) ... [2019-11-15 20:57:57,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76934c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:57, skipping insertion in model container [2019-11-15 20:57:57,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:57" (1/1) ... [2019-11-15 20:57:57,888 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:57:57,921 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:57:58,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:58,239 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:57:58,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:58,306 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:57:58,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58 WrapperNode [2019-11-15 20:57:58,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:58,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:57:58,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:57:58,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:57:58,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:57:58,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:57:58,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:57:58,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:57:58,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... [2019-11-15 20:57:58,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:57:58,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:57:58,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:57:58,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:57:58,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 [2019-11-15 20:57:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:57:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:57:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:57:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:57:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:57:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:57:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:57:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 20:57:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:57:58,901 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:57:58,902 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-15 20:57:58,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:58 BoogieIcfgContainer [2019-11-15 20:57:58,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:57:58,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:57:58,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:57:58,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:57:58,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:57:57" (1/3) ... [2019-11-15 20:57:58,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c236e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:57:58, skipping insertion in model container [2019-11-15 20:57:58,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:58" (2/3) ... [2019-11-15 20:57:58,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c236e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:57:58, skipping insertion in model container [2019-11-15 20:57:58,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:58" (3/3) ... [2019-11-15 20:57:58,910 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2019-11-15 20:57:58,919 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:57:58,925 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:57:58,935 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:57:58,959 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:57:58,959 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:57:58,959 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:57:58,959 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:57:58,959 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:57:58,959 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:57:58,959 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:57:58,959 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:57:58,972 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-15 20:57:58,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:57:58,978 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:58,979 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:58,981 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:57:58,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:58,986 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-15 20:57:58,993 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:58,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181992264] [2019-11-15 20:57:58,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:58,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:58,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:59,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181992264] [2019-11-15 20:57:59,126 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:59,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:57:59,126 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108671167] [2019-11-15 20:57:59,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:57:59,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:59,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:57:59,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:57:59,142 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-15 20:57:59,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:59,163 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-15 20:57:59,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:57:59,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 20:57:59,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:59,173 INFO L225 Difference]: With dead ends: 76 [2019-11-15 20:57:59,173 INFO L226 Difference]: Without dead ends: 36 [2019-11-15 20:57:59,176 INFO L600 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 [2019-11-15 20:57:59,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-15 20:57:59,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-15 20:57:59,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-15 20:57:59,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-15 20:57:59,208 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-15 20:57:59,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:59,209 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-15 20:57:59,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:57:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-15 20:57:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 20:57:59,210 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:59,210 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:59,210 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:57:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:59,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-15 20:57:59,211 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:59,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285971847] [2019-11-15 20:57:59,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:59,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:59,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:59,429 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:59,430 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:57:59,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:57:59 BoogieIcfgContainer [2019-11-15 20:57:59,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:57:59,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:57:59,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:57:59,486 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:57:59,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:58" (3/4) ... [2019-11-15 20:57:59,489 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:57:59,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:57:59,491 INFO L168 Benchmark]: Toolchain (without parser) took 1631.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:59,491 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:59,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 950.2 MB in the beginning and 1.2 GB in the end (delta: -222.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:59,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:59,493 INFO L168 Benchmark]: Boogie Preprocessor took 40.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:59,494 INFO L168 Benchmark]: RCFGBuilder took 500.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:59,495 INFO L168 Benchmark]: TraceAbstraction took 580.82 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:59,495 INFO L168 Benchmark]: Witness Printer took 3.85 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. [2019-11-15 20:57:59,499 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 438.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 950.2 MB in the beginning and 1.2 GB in the end (delta: -222.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 500.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 580.82 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.85 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: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 154, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 158. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-4:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = -0.0; [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-4:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-4:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L74] COND TRUE ix >= 0x44100000 [L75] __uint32_t low; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-4:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L77] ieee_double_shape_type gl_u; [L78] gl_u.value = (x) [L79] EXPR gl_u.parts.lsw [L79] (low) = gl_u.parts.lsw [L81] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L82] return x + x; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-4:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L155] double res = atan_double(x); [L158] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-4:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L158] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L159] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-4:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 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=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-cad4683 [2019-11-15 20:58:01,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:58:01,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:58:01,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-15 20:58:01,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:58:01,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:58:01,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:58:01,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:58:01,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:58:01,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:58:01,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:58:01,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:58:01,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:58:01,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:58:01,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:58:01,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:58:01,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:58:01,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:58:01,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:58:01,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:58:01,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:58:01,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:58:01,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:58:01,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:58:01,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:58:01,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:58:01,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:58:01,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:58:01,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:58:01,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:58:01,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:58:01,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:58:01,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:58:01,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:58:01,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:58:01,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:58:01,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:58:01,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:58:01,834 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:58:01,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:58:01,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:58:01,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:58:01,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:58:01,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:58:01,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:58:01,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:58:01,836 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:58:01,837 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:58:01,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:58:01,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:58:01,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:58:01,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:58:01,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:58:01,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:58:01,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:58:01,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:58:01,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:58:01,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:58:01,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:58:01,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:58:01,840 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:58:01,840 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:58:01,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:58:01,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:58:01,841 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 -> 04e5b929de4769f01a6c1d571d92eec73b544ab1 [2019-11-15 20:58:01,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:58:01,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:58:01,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:58:01,892 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:58:01,893 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:58:01,893 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-15 20:58:01,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/2772e41e7/3f96e1191066420d9f0329300e764d95/FLAG52dd2160a [2019-11-15 20:58:02,338 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:58:02,344 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-15 20:58:02,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/2772e41e7/3f96e1191066420d9f0329300e764d95/FLAG52dd2160a [2019-11-15 20:58:02,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/data/2772e41e7/3f96e1191066420d9f0329300e764d95 [2019-11-15 20:58:02,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:58:02,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:58:02,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:02,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:58:02,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:58:02,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:02" (1/1) ... [2019-11-15 20:58:02,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7cc6e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:02, skipping insertion in model container [2019-11-15 20:58:02,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:02" (1/1) ... [2019-11-15 20:58:02,722 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:58:02,745 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:58:03,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:03,043 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:58:03,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:03,228 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:58:03,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03 WrapperNode [2019-11-15 20:58:03,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:03,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:03,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:58:03,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:58:03,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:03,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:58:03,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:58:03,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:58:03,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... [2019-11-15 20:58:03,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:58:03,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:58:03,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:58:03,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:58:03,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 [2019-11-15 20:58:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 20:58:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 20:58:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:58:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 20:58:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:58:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:58:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:58:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:58:03,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:58:21,310 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:58:21,310 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-15 20:58:21,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:21 BoogieIcfgContainer [2019-11-15 20:58:21,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:58:21,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:58:21,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:58:21,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:58:21,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:58:02" (1/3) ... [2019-11-15 20:58:21,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9741bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:21, skipping insertion in model container [2019-11-15 20:58:21,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:03" (2/3) ... [2019-11-15 20:58:21,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9741bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:21, skipping insertion in model container [2019-11-15 20:58:21,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:21" (3/3) ... [2019-11-15 20:58:21,319 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2019-11-15 20:58:21,329 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:58:21,335 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:58:21,343 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:58:21,368 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:58:21,369 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:58:21,369 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:58:21,369 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:58:21,369 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:58:21,370 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:58:21,370 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:58:21,370 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:58:21,385 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-15 20:58:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:58:21,392 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:21,393 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:21,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:21,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:21,400 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-15 20:58:21,410 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:58:21,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745040111] [2019-11-15 20:58:21,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 [2019-11-15 20:58:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:58:21,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:58:21,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:58:21,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:21,788 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:58:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:21,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745040111] [2019-11-15 20:58:21,797 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:58:21,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:58:21,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830085335] [2019-11-15 20:58:21,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:58:21,802 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:58:21,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:58:21,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:58:21,818 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-15 20:58:21,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:58:21,846 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-15 20:58:21,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:58:21,848 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 20:58:21,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:58:21,859 INFO L225 Difference]: With dead ends: 76 [2019-11-15 20:58:21,859 INFO L226 Difference]: Without dead ends: 36 [2019-11-15 20:58:21,862 INFO L600 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 [2019-11-15 20:58:21,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-15 20:58:21,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-15 20:58:21,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-15 20:58:21,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-15 20:58:21,900 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-15 20:58:21,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:58:21,901 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-15 20:58:21,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:58:21,901 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-15 20:58:21,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 20:58:21,902 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:21,903 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:22,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:58:22,121 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:22,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-15 20:58:22,123 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:58:22,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152761892] [2019-11-15 20:58:22,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 [2019-11-15 20:58:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:58:22,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 20:58:22,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:58:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:22,560 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:58:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:22,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152761892] [2019-11-15 20:58:22,666 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:58:22,666 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 20:58:22,666 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691972454] [2019-11-15 20:58:22,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:58:22,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:58:22,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:58:22,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:58:22,669 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2019-11-15 20:58:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:58:31,551 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-11-15 20:58:31,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:58:31,554 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-15 20:58:31,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:58:31,556 INFO L225 Difference]: With dead ends: 59 [2019-11-15 20:58:31,557 INFO L226 Difference]: Without dead ends: 32 [2019-11-15 20:58:31,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-15 20:58:31,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-15 20:58:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-15 20:58:31,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 20:58:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-15 20:58:31,569 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2019-11-15 20:58:31,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:58:31,570 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-15 20:58:31,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:58:31,570 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-15 20:58:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 20:58:31,571 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:31,571 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:31,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:58:31,777 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:31,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:31,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2019-11-15 20:58:31,778 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:58:31,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778716316] [2019-11-15 20:58:31,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 [2019-11-15 20:58:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:58:32,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 20:58:32,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:58:32,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:32,123 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:58:32,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:58:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:32,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778716316] [2019-11-15 20:58:32,166 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:58:32,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-15 20:58:32,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886303004] [2019-11-15 20:58:32,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 20:58:32,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:58:32,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 20:58:32,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:58:32,169 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-15 20:58:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:58:40,426 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-15 20:58:40,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:58:40,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-15 20:58:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:58:40,430 INFO L225 Difference]: With dead ends: 35 [2019-11-15 20:58:40,430 INFO L226 Difference]: Without dead ends: 32 [2019-11-15 20:58:40,430 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:58:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-15 20:58:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-15 20:58:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 20:58:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-15 20:58:40,436 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-15 20:58:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:58:40,436 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-15 20:58:40,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 20:58:40,436 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-15 20:58:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 20:58:40,437 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:40,437 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:40,644 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 20:58:40,645 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:40,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:40,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2019-11-15 20:58:40,646 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:58:40,646 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622640233] [2019-11-15 20:58:40,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/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 [2019-11-15 20:58:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:58:45,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 20:58:45,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:58:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:45,986 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:58:47,287 WARN L191 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-15 20:58:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:47,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622640233] [2019-11-15 20:58:47,788 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:58:47,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-15 20:58:47,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823634089] [2019-11-15 20:58:47,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:58:47,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:58:47,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:58:47,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:58:47,790 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-15 20:58:48,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:58:48,039 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-15 20:58:48,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:58:48,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-15 20:58:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:58:48,051 INFO L225 Difference]: With dead ends: 32 [2019-11-15 20:58:48,051 INFO L226 Difference]: Without dead ends: 18 [2019-11-15 20:58:48,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:58:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-15 20:58:48,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-15 20:58:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 20:58:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-15 20:58:48,054 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-15 20:58:48,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:58:48,055 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-15 20:58:48,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:58:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-15 20:58:48,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 20:58:48,055 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:48,056 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:48,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 20:58:48,256 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:48,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:48,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2019-11-15 20:58:48,258 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:58:48,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820037367] [2019-11-15 20:58:48,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 20:58:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:58:48,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-15 20:58:48,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:58:48,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:58:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:48,691 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:58:48,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:58:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:58:48,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820037367] [2019-11-15 20:58:48,952 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:58:48,952 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-15 20:58:48,952 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388320543] [2019-11-15 20:58:48,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 20:58:48,953 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:58:48,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 20:58:48,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-15 20:58:48,954 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-15 20:58:49,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:58:49,330 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-15 20:58:49,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 20:58:49,331 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-15 20:58:49,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:58:49,332 INFO L225 Difference]: With dead ends: 18 [2019-11-15 20:58:49,332 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:58:49,332 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-15 20:58:49,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:58:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:58:49,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:58:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:58:49,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-15 20:58:49,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:58:49,334 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:58:49,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 20:58:49,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:58:49,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:58:49,535 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 20:58:49,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:58:49,799 INFO L443 ceAbstractionStarter]: For program point L68-3(lines 68 72) no Hoare annotation was computed. [2019-11-15 20:58:49,799 INFO L443 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2019-11-15 20:58:49,799 INFO L443 ceAbstractionStarter]: For program point L126(lines 126 131) no Hoare annotation was computed. [2019-11-15 20:58:49,799 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-15 20:58:49,799 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-11-15 20:58:49,800 INFO L439 ceAbstractionStarter]: At program point L143(lines 134 144) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_22_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_22_3) ((_ extract 62 52) v_skolemized_v_prenex_22_3) ((_ extract 51 0) v_skolemized_v_prenex_22_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_22_3)))) (= ULTIMATE.start_main_~res~0 .cse0) (= .cse0 |ULTIMATE.start_atan_double_#res|) |ULTIMATE.start_main_#t~short31| (= (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0))) [2019-11-15 20:58:49,800 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:58:49,800 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:58:49,800 INFO L443 ceAbstractionStarter]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2019-11-15 20:58:49,800 INFO L439 ceAbstractionStarter]: At program point L137-2(lines 137 141) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_main_~res~0 .cse0) (= .cse0 |ULTIMATE.start_atan_double_#res|) |ULTIMATE.start_main_#t~short31| (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0))) [2019-11-15 20:58:49,800 INFO L443 ceAbstractionStarter]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2019-11-15 20:58:49,801 INFO L443 ceAbstractionStarter]: For program point L96(lines 96 112) no Hoare annotation was computed. [2019-11-15 20:58:49,801 INFO L439 ceAbstractionStarter]: At program point L30(lines 17 31) the Hoare annotation is: false [2019-11-15 20:58:49,801 INFO L443 ceAbstractionStarter]: For program point L88(lines 88 113) no Hoare annotation was computed. [2019-11-15 20:58:49,801 INFO L443 ceAbstractionStarter]: For program point L105(lines 105 111) no Hoare annotation was computed. [2019-11-15 20:58:49,801 INFO L443 ceAbstractionStarter]: For program point L105-2(lines 88 113) no Hoare annotation was computed. [2019-11-15 20:58:49,801 INFO L446 ceAbstractionStarter]: At program point L163(lines 146 164) the Hoare annotation is: true [2019-11-15 20:58:49,801 INFO L443 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-15 20:58:49,801 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 103) no Hoare annotation was computed. [2019-11-15 20:58:49,801 INFO L443 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L439 ceAbstractionStarter]: At program point L130-3(lines 64 132) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x .cse0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0))) [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 92) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 92) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L24-1(lines 17 31) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 29) no Hoare annotation was computed. [2019-11-15 20:58:49,802 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 87) no Hoare annotation was computed. [2019-11-15 20:58:49,803 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:58:49,803 INFO L443 ceAbstractionStarter]: For program point L83(lines 83 86) no Hoare annotation was computed. [2019-11-15 20:58:49,803 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2019-11-15 20:58:49,803 INFO L443 ceAbstractionStarter]: For program point L158(line 158) no Hoare annotation was computed. [2019-11-15 20:58:49,803 INFO L443 ceAbstractionStarter]: For program point L158-2(lines 158 161) no Hoare annotation was computed. [2019-11-15 20:58:49,803 INFO L443 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-15 20:58:49,803 INFO L439 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-15 20:58:49,803 INFO L443 ceAbstractionStarter]: For program point L76-3(lines 74 87) no Hoare annotation was computed. [2019-11-15 20:58:49,804 INFO L443 ceAbstractionStarter]: For program point L68-1(lines 68 72) no Hoare annotation was computed. [2019-11-15 20:58:49,804 INFO L439 ceAbstractionStarter]: At program point L68-2(lines 68 72) the Hoare annotation is: (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (fp.neg (_ +zero 11 53))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-15 20:58:49,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,830 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,831 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,843 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,843 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,844 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,844 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,845 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:58:49 BoogieIcfgContainer [2019-11-15 20:58:49,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:58:49,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:58:49,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:58:49,859 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:58:49,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:21" (3/4) ... [2019-11-15 20:58:49,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:58:49,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-15 20:58:49,878 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-15 20:58:49,901 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-15 20:58:49,902 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-15 20:58:49,903 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists v_skolemized_v_prenex_22_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_22_3[63:32]) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-15 20:58:49,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bfd737ab-6208-47ff-bf37-b9c9155cb5bb/bin/uautomizer/witness.graphml [2019-11-15 20:58:49,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:58:49,958 INFO L168 Benchmark]: Toolchain (without parser) took 47252.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 951.0 MB in the beginning and 859.0 MB in the end (delta: 92.0 MB). Peak memory consumption was 229.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:49,958 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:58:49,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:49,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.53 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:49,960 INFO L168 Benchmark]: Boogie Preprocessor took 79.31 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. [2019-11-15 20:58:49,960 INFO L168 Benchmark]: RCFGBuilder took 17942.01 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: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:49,961 INFO L168 Benchmark]: TraceAbstraction took 28546.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 865.8 MB in the end (delta: 205.4 MB). Peak memory consumption was 205.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:49,961 INFO L168 Benchmark]: Witness Printer took 97.53 ms. Allocated memory is still 1.2 GB. Free memory was 865.8 MB in the beginning and 859.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:49,963 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.53 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.31 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. * RCFGBuilder took 17942.01 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: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28546.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 865.8 MB in the end (delta: 205.4 MB). Peak memory consumption was 205.4 MB. Max. memory is 11.5 GB. * Witness Printer took 97.53 ms. Allocated memory is still 1.2 GB. Free memory was 865.8 MB in the beginning and 859.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: 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: 64]: Loop Invariant [2019-11-15 20:58:49,972 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,972 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 134]: Loop Invariant [2019-11-15 20:58:49,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-15 20:58:49,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((((\exists v_skolemized_v_prenex_22_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_22_3[63:32]) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant [2019-11-15 20:58:49,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 68]: Loop Invariant [2019-11-15 20:58:49,980 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,980 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,981 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:58:49,981 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: SAFE, OverallTime: 28.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 113 SDtfs, 176 SDslu, 186 SDs, 0 SdLazy, 79 SolverSat, 13 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 15.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 115 HoareAnnotationTreeSize, 8 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 9649 SizeOfPredicates, 27 NumberOfNonLiveVariables, 557 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...