./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 0fa375491f6ee23468a1ede5cb9608fff6035ced ......................................................................................................................................................................................................................................................................................... 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_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 0fa375491f6ee23468a1ede5cb9608fff6035ced .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:50:17,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:50:17,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:50:17,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:50:17,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:50:17,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:50:17,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:50:17,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:50:17,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:50:17,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:50:17,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:50:17,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:50:17,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:50:17,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:50:17,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:50:17,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:50:17,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:50:17,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:50:17,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:50:17,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:50:17,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:50:17,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:50:17,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:50:17,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:50:17,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:50:17,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:50:17,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:50:17,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:50:17,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:50:17,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:50:17,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:50:17,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:50:17,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:50:17,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:50:17,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:50:17,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:50:17,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:50:17,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:50:17,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:50:17,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:50:17,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:50:17,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:50:17,857 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:50:17,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:50:17,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:50:17,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:50:17,859 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:50:17,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:50:17,859 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:50:17,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:50:17,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:50:17,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:50:17,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:50:17,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:50:17,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:50:17,861 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:50:17,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:50:17,861 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:50:17,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:50:17,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:50:17,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:50:17,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:50:17,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:50:17,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:50:17,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:50:17,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:50:17,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:50:17,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:50:17,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:50:17,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:50:17,864 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_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-20 04:50:17,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:50:18,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:50:18,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:50:18,007 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:50:18,008 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:50:18,008 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-20 04:50:18,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/a8d9d9a49/9ebfcd2320954808af027744bb10ebca/FLAGab5c313bf [2019-11-20 04:50:18,503 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:50:18,503 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-20 04:50:18,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/a8d9d9a49/9ebfcd2320954808af027744bb10ebca/FLAGab5c313bf [2019-11-20 04:50:18,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/a8d9d9a49/9ebfcd2320954808af027744bb10ebca [2019-11-20 04:50:18,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:50:18,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:50:18,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:50:18,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:50:18,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:50:18,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:50:18" (1/1) ... [2019-11-20 04:50:18,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d78c2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:18, skipping insertion in model container [2019-11-20 04:50:18,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:50:18" (1/1) ... [2019-11-20 04:50:18,855 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:50:18,871 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:50:19,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:50:19,067 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:50:19,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:50:19,116 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:50:19,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19 WrapperNode [2019-11-20 04:50:19,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:50:19,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:50:19,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:50:19,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:50:19,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:50:19,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:50:19,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:50:19,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:50:19,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... [2019-11-20 04:50:19,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:50:19,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:50:19,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:50:19,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:50:19,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 [2019-11-20 04:50:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 04:50:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:50:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 04:50:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:50:19,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:50:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:50:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:50:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:50:19,562 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:50:19,562 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 04:50:19,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:19 BoogieIcfgContainer [2019-11-20 04:50:19,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:50:19,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:50:19,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:50:19,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:50:19,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:50:18" (1/3) ... [2019-11-20 04:50:19,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f27426f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:50:19, skipping insertion in model container [2019-11-20 04:50:19,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:19" (2/3) ... [2019-11-20 04:50:19,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f27426f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:50:19, skipping insertion in model container [2019-11-20 04:50:19,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:19" (3/3) ... [2019-11-20 04:50:19,572 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-20 04:50:19,581 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:50:19,587 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:50:19,598 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:50:19,618 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:50:19,619 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:50:19,619 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:50:19,619 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:50:19,623 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:50:19,623 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:50:19,623 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:50:19,623 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:50:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-20 04:50:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 04:50:19,645 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:19,646 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:19,646 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:50:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:19,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-20 04:50:19,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:19,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804584458] [2019-11-20 04:50:19,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:19,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:19,741 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804584458] [2019-11-20 04:50:19,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:19,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:50:19,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255983402] [2019-11-20 04:50:19,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:50:19,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:19,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:50:19,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:50:19,757 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-20 04:50:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:19,773 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-20 04:50:19,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:50:19,774 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 04:50:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:19,782 INFO L225 Difference]: With dead ends: 66 [2019-11-20 04:50:19,783 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 04:50:19,785 INFO L630 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 [2019-11-20 04:50:19,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 04:50:19,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-20 04:50:19,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 04:50:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-20 04:50:19,815 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-20 04:50:19,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:19,815 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-20 04:50:19,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:50:19,816 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-20 04:50:19,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 04:50:19,816 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:19,817 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:19,817 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:50:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:19,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-20 04:50:19,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:19,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938157359] [2019-11-20 04:50:19,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:50:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:50:19,913 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:50:19,914 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 04:50:19,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:50:19 BoogieIcfgContainer [2019-11-20 04:50:19,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:50:19,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:50:19,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:50:19,943 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:50:19,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:19" (3/4) ... [2019-11-20 04:50:19,946 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:50:19,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:50:19,949 INFO L168 Benchmark]: Toolchain (without parser) took 1106.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -137.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:19,949 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:50:19,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:19,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:19,951 INFO L168 Benchmark]: Boogie Preprocessor took 27.92 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. [2019-11-20 04:50:19,952 INFO L168 Benchmark]: RCFGBuilder took 375.63 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:19,953 INFO L168 Benchmark]: TraceAbstraction took 377.31 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:19,953 INFO L168 Benchmark]: Witness Printer took 4.77 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. [2019-11-20 04:50:19,956 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 274.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.92 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 375.63 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 377.31 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.77 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: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] double res = floor_double(x); [L80] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 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=34occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 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 0.1.24-678e011 [2019-11-20 04:50:21,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:50:21,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:50:21,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:50:21,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:50:21,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:50:21,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:50:21,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:50:21,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:50:21,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:50:21,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:50:21,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:50:21,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:50:21,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:50:21,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:50:21,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:50:21,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:50:21,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:50:21,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:50:21,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:50:21,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:50:21,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:50:21,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:50:21,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:50:21,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:50:21,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:50:21,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:50:21,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:50:21,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:50:21,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:50:21,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:50:21,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:50:21,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:50:21,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:50:21,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:50:21,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:50:21,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:50:21,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:50:21,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:50:21,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:50:21,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:50:21,754 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 04:50:21,770 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:50:21,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:50:21,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:50:21,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:50:21,772 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:50:21,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:50:21,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:50:21,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:50:21,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:50:21,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:50:21,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:50:21,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:50:21,775 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:50:21,775 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:50:21,775 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:50:21,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:50:21,776 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:50:21,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:50:21,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:50:21,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:50:21,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:50:21,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:50:21,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:50:21,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:50:21,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:50:21,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:50:21,778 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:50:21,779 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:50:21,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:50:21,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:50:21,780 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_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-20 04:50:22,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:50:22,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:50:22,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:50:22,144 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:50:22,144 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:50:22,145 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-20 04:50:22,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/4efa27a24/a8056089a6de4a1c92604b52546b86b8/FLAG2a340467e [2019-11-20 04:50:22,610 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:50:22,611 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-20 04:50:22,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/4efa27a24/a8056089a6de4a1c92604b52546b86b8/FLAG2a340467e [2019-11-20 04:50:22,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/data/4efa27a24/a8056089a6de4a1c92604b52546b86b8 [2019-11-20 04:50:22,996 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:50:22,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:50:22,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:50:22,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:50:23,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:50:23,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:50:22" (1/1) ... [2019-11-20 04:50:23,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a1cc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23, skipping insertion in model container [2019-11-20 04:50:23,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:50:22" (1/1) ... [2019-11-20 04:50:23,011 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:50:23,031 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:50:23,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:50:23,232 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:50:23,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:50:23,380 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:50:23,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23 WrapperNode [2019-11-20 04:50:23,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:50:23,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:50:23,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:50:23,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:50:23,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:50:23,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:50:23,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:50:23,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:50:23,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... [2019-11-20 04:50:23,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:50:23,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:50:23,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:50:23,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:50:23,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 [2019-11-20 04:50:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 04:50:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:50:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 04:50:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:50:23,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:50:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:50:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:50:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:50:24,744 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:50:24,744 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 04:50:24,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:24 BoogieIcfgContainer [2019-11-20 04:50:24,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:50:24,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:50:24,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:50:24,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:50:24,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:50:22" (1/3) ... [2019-11-20 04:50:24,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715d2106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:50:24, skipping insertion in model container [2019-11-20 04:50:24,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:23" (2/3) ... [2019-11-20 04:50:24,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715d2106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:50:24, skipping insertion in model container [2019-11-20 04:50:24,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:24" (3/3) ... [2019-11-20 04:50:24,752 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-20 04:50:24,761 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:50:24,767 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:50:24,777 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:50:24,799 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:50:24,799 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:50:24,799 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:50:24,800 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:50:24,800 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:50:24,800 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:50:24,800 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:50:24,800 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:50:24,813 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-20 04:50:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 04:50:24,819 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:24,819 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:24,820 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:50:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-20 04:50:24,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:50:24,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183697488] [2019-11-20 04:50:24,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 [2019-11-20 04:50:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:24,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 04:50:24,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:24,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:24,923 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:50:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:24,928 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183697488] [2019-11-20 04:50:24,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:24,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 04:50:24,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103214767] [2019-11-20 04:50:24,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:50:24,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:50:24,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:50:24,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:50:24,948 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-20 04:50:24,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:24,966 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-20 04:50:24,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:50:24,967 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 04:50:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:24,977 INFO L225 Difference]: With dead ends: 66 [2019-11-20 04:50:24,977 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 04:50:24,980 INFO L630 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 [2019-11-20 04:50:24,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 04:50:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-20 04:50:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 04:50:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-20 04:50:25,012 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-20 04:50:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:25,012 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-20 04:50:25,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:50:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-20 04:50:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 04:50:25,013 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:25,014 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:25,227 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 04:50:25,227 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:50:25,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:25,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-20 04:50:25,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:50:25,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583637806] [2019-11-20 04:50:25,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 [2019-11-20 04:50:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:25,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:50:25,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:25,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:25,388 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:50:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:25,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583637806] [2019-11-20 04:50:25,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:25,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 04:50:25,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093331785] [2019-11-20 04:50:25,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:50:25,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:50:25,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:50:25,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:50:25,450 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 8 states. [2019-11-20 04:50:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:26,116 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-11-20 04:50:26,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:50:26,117 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-20 04:50:26,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:26,117 INFO L225 Difference]: With dead ends: 42 [2019-11-20 04:50:26,117 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 04:50:26,119 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-20 04:50:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 04:50:26,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 04:50:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 04:50:26,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-20 04:50:26,122 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-11-20 04:50:26,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:26,123 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-20 04:50:26,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:50:26,123 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-20 04:50:26,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 04:50:26,123 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:26,124 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:26,331 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 04:50:26,332 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:50:26,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:26,332 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-11-20 04:50:26,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:50:26,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917168464] [2019-11-20 04:50:26,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/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 [2019-11-20 04:50:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:26,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:50:26,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:26,545 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:50:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:26,657 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917168464] [2019-11-20 04:50:26,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:26,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 04:50:26,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569952105] [2019-11-20 04:50:26,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:50:26,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:50:26,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:50:26,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:50:26,659 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-11-20 04:50:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:26,781 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-20 04:50:26,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:50:26,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-20 04:50:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:26,782 INFO L225 Difference]: With dead ends: 21 [2019-11-20 04:50:26,783 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:50:26,783 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:50:26,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:50:26,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:50:26,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:50:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:50:26,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 04:50:26,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:26,784 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:50:26,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:50:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:50:26,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:50:26,985 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 04:50:26,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:50:27,056 INFO L444 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2019-11-20 04:50:27,056 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-11-20 04:50:27,056 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2019-11-20 04:50:27,056 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (= ULTIMATE.start_floor_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-20 04:50:27,056 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2019-11-20 04:50:27,057 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:50:27,057 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:50:27,057 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-11-20 04:50:27,057 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-20 04:50:27,057 INFO L444 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2019-11-20 04:50:27,057 INFO L444 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2019-11-20 04:50:27,057 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2019-11-20 04:50:27,058 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2019-11-20 04:50:27,058 INFO L444 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2019-11-20 04:50:27,058 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-11-20 04:50:27,058 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-20 04:50:27,058 INFO L440 ceAbstractionStarter]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= |ULTIMATE.start_floor_double_#res| .cse0) (= ULTIMATE.start_floor_double_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-11-20 04:50:27,058 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2019-11-20 04:50:27,059 INFO L447 ceAbstractionStarter]: At program point L97(lines 82 98) the Hoare annotation is: true [2019-11-20 04:50:27,059 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2019-11-20 04:50:27,059 INFO L444 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2019-11-20 04:50:27,059 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-11-20 04:50:27,059 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2019-11-20 04:50:27,059 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 04:50:27,059 INFO L444 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2019-11-20 04:50:27,059 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2019-11-20 04:50:27,060 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2019-11-20 04:50:27,061 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2019-11-20 04:50:27,061 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-20 04:50:27,062 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:50:27,062 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2019-11-20 04:50:27,062 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 95) no Hoare annotation was computed. [2019-11-20 04:50:27,062 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2019-11-20 04:50:27,062 INFO L440 ceAbstractionStarter]: At program point L76(lines 16 77) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= |ULTIMATE.start_floor_double_#res| .cse0) (= ULTIMATE.start_floor_double_~x .cse0))) [2019-11-20 04:50:27,070 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,071 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:50:27 BoogieIcfgContainer [2019-11-20 04:50:27,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:50:27,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:50:27,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:50:27,087 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:50:27,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:24" (3/4) ... [2019-11-20 04:50:27,091 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:50:27,107 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 04:50:27,108 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 04:50:27,108 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:50:27,149 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 04:50:27,150 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-11-20 04:50:27,180 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e5f39ac2-f1f9-4862-bc89-6c00f1078388/bin/uautomizer/witness.graphml [2019-11-20 04:50:27,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:50:27,182 INFO L168 Benchmark]: Toolchain (without parser) took 4184.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 957.8 MB in the beginning and 1.0 GB in the end (delta: -62.2 MB). Peak memory consumption was 95.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:27,182 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:50:27,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:27,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.27 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. [2019-11-20 04:50:27,183 INFO L168 Benchmark]: Boogie Preprocessor took 46.13 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. [2019-11-20 04:50:27,184 INFO L168 Benchmark]: RCFGBuilder took 1251.49 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:27,184 INFO L168 Benchmark]: TraceAbstraction took 2340.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.4 MB). Peak memory consumption was 90.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:27,185 INFO L168 Benchmark]: Witness Printer took 93.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:50:27,187 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.27 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. * Boogie Preprocessor took 46.13 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 1251.49 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2340.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.4 MB). Peak memory consumption was 90.4 MB. Max. memory is 11.5 GB. * Witness Printer took 93.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 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 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: 93]: 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: 80]: Loop Invariant [2019-11-20 04:50:27,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant [2019-11-20 04:50:27,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 16]: Loop Invariant [2019-11-20 04:50:27,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,197 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:50:27,197 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 4 QuantifiedInterpolants, 3206 SizeOfPredicates, 14 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! Received shutdown request...