./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.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_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 70ee165c745ab937eeca69bc762f66bcb3efe6fa ............................................................................................................................................................................................................................................................................ 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_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 70ee165c745ab937eeca69bc762f66bcb3efe6fa ............................................................................................................................................................................................................................................................................................................................................................................................ 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 05:23:25,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:23:25,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:23:26,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:23:26,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:23:26,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:23:26,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:23:26,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:23:26,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:23:26,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:23:26,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:23:26,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:23:26,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:23:26,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:23:26,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:23:26,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:23:26,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:23:26,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:23:26,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:23:26,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:23:26,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:23:26,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:23:26,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:23:26,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:23:26,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:23:26,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:23:26,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:23:26,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:23:26,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:23:26,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:23:26,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:23:26,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:23:26,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:23:26,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:23:26,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:23:26,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:23:26,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:23:26,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:23:26,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:23:26,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:23:26,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:23:26,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:23:26,086 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:23:26,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:23:26,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:23:26,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:23:26,088 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:23:26,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:23:26,088 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:23:26,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:23:26,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:23:26,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:23:26,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:23:26,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:23:26,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:23:26,089 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:23:26,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:23:26,090 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:23:26,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:23:26,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:23:26,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:23:26,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:23:26,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:23:26,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:23:26,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:23:26,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:23:26,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:23:26,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:23:26,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:23:26,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:23:26,093 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_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-11-20 05:23:26,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:23:26,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:23:26,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:23:26,280 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:23:26,280 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:23:26,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-20 05:23:26,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/f1eb3c5cf/85944a97598641e19104d1139e2572ae/FLAG34086cd2e [2019-11-20 05:23:26,759 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:23:26,759 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-20 05:23:26,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/f1eb3c5cf/85944a97598641e19104d1139e2572ae/FLAG34086cd2e [2019-11-20 05:23:26,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/f1eb3c5cf/85944a97598641e19104d1139e2572ae [2019-11-20 05:23:26,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:23:26,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:23:26,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:23:26,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:23:26,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:23:26,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:23:26" (1/1) ... [2019-11-20 05:23:26,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681ef91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:26, skipping insertion in model container [2019-11-20 05:23:26,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:23:26" (1/1) ... [2019-11-20 05:23:26,798 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:23:26,817 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:23:27,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:23:27,158 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:23:27,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:23:27,208 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:23:27,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27 WrapperNode [2019-11-20 05:23:27,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:23:27,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:23:27,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:23:27,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:23:27,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:23:27,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:23:27,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:23:27,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:23:27,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... [2019-11-20 05:23:27,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:23:27,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:23:27,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:23:27,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:23:27,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 05:23:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:23:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 05:23:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:23:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 05:23:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:23:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:23:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 05:23:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:23:27,697 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:23:27,698 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 05:23:27,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:23:27 BoogieIcfgContainer [2019-11-20 05:23:27,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:23:27,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:23:27,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:23:27,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:23:27,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:23:26" (1/3) ... [2019-11-20 05:23:27,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dc72db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:23:27, skipping insertion in model container [2019-11-20 05:23:27,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:27" (2/3) ... [2019-11-20 05:23:27,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dc72db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:23:27, skipping insertion in model container [2019-11-20 05:23:27,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:23:27" (3/3) ... [2019-11-20 05:23:27,718 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-11-20 05:23:27,728 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:23:27,734 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:23:27,746 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:23:27,791 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:23:27,792 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:23:27,792 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:23:27,792 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:23:27,792 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:23:27,792 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:23:27,792 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:23:27,792 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:23:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-20 05:23:27,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 05:23:27,812 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:23:27,812 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:23:27,813 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:23:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:23:27,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-11-20 05:23:27,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:23:27,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807682334] [2019-11-20 05:23:27,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:23:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:23:27,932 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 05:23:27,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807682334] [2019-11-20 05:23:27,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:23:27,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 05:23:27,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314328713] [2019-11-20 05:23:27,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:23:27,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:23:27,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:23:27,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:23:27,951 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-20 05:23:27,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:23:27,967 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-11-20 05:23:27,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:23:27,968 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 05:23:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:23:27,975 INFO L225 Difference]: With dead ends: 28 [2019-11-20 05:23:27,975 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 05:23:27,978 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 05:23:27,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 05:23:28,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 05:23:28,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 05:23:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-20 05:23:28,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-11-20 05:23:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:23:28,006 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-20 05:23:28,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:23:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-20 05:23:28,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:23:28,007 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:23:28,008 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:23:28,008 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:23:28,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:23:28,008 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-11-20 05:23:28,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:23:28,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104466248] [2019-11-20 05:23:28,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:23:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:23:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:23:28,107 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:23:28,107 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 05:23:28,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:23:28 BoogieIcfgContainer [2019-11-20 05:23:28,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:23:28,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:23:28,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:23:28,130 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:23:28,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:23:27" (3/4) ... [2019-11-20 05:23:28,133 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:23:28,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:23:28,135 INFO L168 Benchmark]: Toolchain (without parser) took 1351.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:23:28,135 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:23:28,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:28,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.08 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 05:23:28,137 INFO L168 Benchmark]: Boogie Preprocessor took 55.67 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 05:23:28,138 INFO L168 Benchmark]: RCFGBuilder took 377.56 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:28,138 INFO L168 Benchmark]: TraceAbstraction took 428.87 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 05:23:28,139 INFO L168 Benchmark]: Witness Printer took 3.57 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 05:23:28,142 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 429.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.08 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 55.67 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. * RCFGBuilder took 377.56 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 428.87 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 3.57 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: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L35] float x = 0.0f / 0.0f; [L15] __uint32_t ix; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; [L23] sf_u.word = (ix & 0x7fffffff) [L24] EXPR sf_u.value [L24] (x) = sf_u.value [L26] return x; [L36] float res = fabs_float(x); [L12] return x != x; [L39] COND TRUE !isnan_float(res) [L40] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 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=15occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 05:23:30,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:23:30,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:23:30,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:23:30,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:23:30,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:23:30,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:23:30,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:23:30,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:23:30,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:23:30,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:23:30,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:23:30,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:23:30,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:23:30,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:23:30,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:23:30,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:23:30,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:23:30,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:23:30,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:23:30,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:23:30,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:23:30,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:23:30,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:23:30,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:23:30,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:23:30,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:23:30,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:23:30,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:23:30,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:23:30,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:23:30,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:23:30,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:23:30,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:23:30,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:23:30,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:23:30,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:23:30,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:23:30,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:23:30,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:23:30,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:23:30,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 05:23:30,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:23:30,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:23:30,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:23:30,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:23:30,212 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:23:30,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:23:30,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:23:30,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:23:30,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:23:30,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:23:30,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:23:30,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:23:30,215 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 05:23:30,215 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 05:23:30,215 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:23:30,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:23:30,216 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:23:30,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:23:30,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:23:30,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:23:30,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:23:30,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:23:30,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:23:30,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:23:30,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:23:30,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:23:30,219 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 05:23:30,219 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 05:23:30,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:23:30,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 05:23:30,220 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_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-11-20 05:23:30,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:23:30,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:23:30,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:23:30,579 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:23:30,579 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:23:30,581 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-20 05:23:30,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/25e26e71c/f9c56dd514bc4418aada267953253da9/FLAG4acef60d0 [2019-11-20 05:23:31,036 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:23:31,037 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-20 05:23:31,042 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/25e26e71c/f9c56dd514bc4418aada267953253da9/FLAG4acef60d0 [2019-11-20 05:23:31,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/data/25e26e71c/f9c56dd514bc4418aada267953253da9 [2019-11-20 05:23:31,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:23:31,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:23:31,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:23:31,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:23:31,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:23:31,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542c4444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31, skipping insertion in model container [2019-11-20 05:23:31,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,073 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:23:31,091 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:23:31,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:23:31,321 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:23:31,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:23:31,387 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:23:31,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31 WrapperNode [2019-11-20 05:23:31,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:23:31,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:23:31,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:23:31,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:23:31,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:23:31,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:23:31,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:23:31,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:23:31,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... [2019-11-20 05:23:31,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:23:31,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:23:31,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:23:31,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:23:31,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 05:23:31,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:23:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 05:23:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 05:23:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:23:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:23:31,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 05:23:31,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 05:23:31,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:23:31,913 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:23:31,913 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 05:23:31,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:23:31 BoogieIcfgContainer [2019-11-20 05:23:31,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:23:31,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:23:31,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:23:31,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:23:31,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:23:31" (1/3) ... [2019-11-20 05:23:31,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de0babc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:23:31, skipping insertion in model container [2019-11-20 05:23:31,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:23:31" (2/3) ... [2019-11-20 05:23:31,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de0babc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:23:31, skipping insertion in model container [2019-11-20 05:23:31,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:23:31" (3/3) ... [2019-11-20 05:23:31,923 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-11-20 05:23:31,934 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:23:31,941 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:23:31,954 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:23:31,979 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:23:31,979 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:23:31,980 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:23:31,980 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:23:31,980 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:23:31,980 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:23:31,980 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:23:31,981 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:23:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-20 05:23:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 05:23:32,002 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:23:32,003 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:23:32,004 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:23:32,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:23:32,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-11-20 05:23:32,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:23:32,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348043286] [2019-11-20 05:23:32,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 05:23:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:23:32,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 05:23:32,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:23:32,153 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 05:23:32,153 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:23:32,157 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 05:23:32,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348043286] [2019-11-20 05:23:32,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:23:32,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 05:23:32,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415362571] [2019-11-20 05:23:32,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:23:32,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:23:32,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:23:32,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:23:32,181 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-20 05:23:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:23:32,198 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-11-20 05:23:32,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:23:32,200 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 05:23:32,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:23:32,209 INFO L225 Difference]: With dead ends: 28 [2019-11-20 05:23:32,210 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 05:23:32,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 05:23:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 05:23:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 05:23:32,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 05:23:32,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-20 05:23:32,253 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-11-20 05:23:32,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:23:32,253 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-20 05:23:32,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:23:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-20 05:23:32,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:23:32,254 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:23:32,254 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:23:32,455 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 05:23:32,455 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:23:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:23:32,456 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-11-20 05:23:32,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:23:32,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664486856] [2019-11-20 05:23:32,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/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 05:23:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:23:32,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 05:23:32,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:23:32,709 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 05:23:32,710 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:23:32,805 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 05:23:32,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664486856] [2019-11-20 05:23:32,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:23:32,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-20 05:23:32,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292740163] [2019-11-20 05:23:32,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 05:23:32,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:23:32,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 05:23:32,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-20 05:23:32,809 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 9 states. [2019-11-20 05:23:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:23:33,036 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-20 05:23:33,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 05:23:33,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-11-20 05:23:33,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:23:33,038 INFO L225 Difference]: With dead ends: 12 [2019-11-20 05:23:33,038 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:23:33,039 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-20 05:23:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:23:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:23:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:23:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:23:33,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-20 05:23:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:23:33,041 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:23:33,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 05:23:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:23:33,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:23:33,242 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 05:23:33,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 05:23:33,344 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 05:23:33,344 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-20 05:23:33,345 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-20 05:23:33,345 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-20 05:23:33,345 INFO L447 ceAbstractionStarter]: At program point L44(lines 29 45) the Hoare annotation is: true [2019-11-20 05:23:33,346 INFO L444 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-20 05:23:33,346 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 05:23:33,346 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 05:23:33,347 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 05:23:33,347 INFO L440 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fabs_float_~x .cse0) (= |ULTIMATE.start_fabs_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) .cse0))) [2019-11-20 05:23:33,347 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2019-11-20 05:23:33,347 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-20 05:23:33,348 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= ULTIMATE.start_fabs_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-20 05:23:33,348 INFO L440 ceAbstractionStarter]: At program point L12(line 12) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_fabs_float_~x .cse0) (= |ULTIMATE.start_fabs_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) .cse0))) [2019-11-20 05:23:33,348 INFO L444 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2019-11-20 05:23:33,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,371 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,390 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,391 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,391 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:23:33 BoogieIcfgContainer [2019-11-20 05:23:33,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:23:33,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:23:33,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:23:33,403 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:23:33,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:23:31" (3/4) ... [2019-11-20 05:23:33,408 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:23:33,433 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 05:23:33,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 05:23:33,438 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 05:23:33,480 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5fd7cfc0-4fa0-45d9-ba49-cf9d9da795b9/bin/uautomizer/witness.graphml [2019-11-20 05:23:33,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:23:33,482 INFO L168 Benchmark]: Toolchain (without parser) took 2424.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -50.7 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:33,482 INFO L168 Benchmark]: CDTParser took 0.32 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 05:23:33,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:33,484 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:33,485 INFO L168 Benchmark]: Boogie Preprocessor took 48.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:33,485 INFO L168 Benchmark]: RCFGBuilder took 342.22 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:33,486 INFO L168 Benchmark]: TraceAbstraction took 1486.12 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: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:33,487 INFO L168 Benchmark]: Witness Printer took 77.92 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:23:33,490 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 330.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 135.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 342.22 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1486.12 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: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 11.5 GB. * Witness Printer took 77.92 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: 6.9 MB). Peak memory consumption was 6.9 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 - 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: 40]: 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: 14]: Loop Invariant [2019-11-20 05:23:33,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 12]: Loop Invariant [2019-11-20 05:23:33,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((1bv32 == \result && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2019-11-20 05:23:33,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:23:33,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 60 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1288 SizeOfPredicates, 11 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...