./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.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_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ............................................................................................................................................................................................................................................................................ 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_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:16:47,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:16:47,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:16:47,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:16:47,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:16:47,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:16:47,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:16:47,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:16:47,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:16:47,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:16:47,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:16:47,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:16:47,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:16:47,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:16:47,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:16:47,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:16:47,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:16:47,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:16:47,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:16:47,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:16:47,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:16:47,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:16:47,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:16:47,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:16:47,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:16:47,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:16:47,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:16:47,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:16:47,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:16:47,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:16:47,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:16:47,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:16:47,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:16:47,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:16:47,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:16:47,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:16:47,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:16:47,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:16:47,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:16:47,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:16:47,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:16:47,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:16:47,131 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:16:47,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:16:47,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:16:47,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:16:47,133 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:16:47,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:16:47,133 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:16:47,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:16:47,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:16:47,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:16:47,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:16:47,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:16:47,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:16:47,136 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:16:47,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:16:47,136 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:16:47,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:16:47,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:16:47,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:16:47,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:16:47,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:16:47,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:16:47,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:16:47,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:16:47,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:16:47,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:16:47,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:16:47,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:16:47,139 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_5396c542-418d-4e41-9e4e-3248178a237e/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2019-11-19 22:16:47,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:16:47,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:16:47,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:16:47,307 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:16:47,307 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:16:47,308 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-19 22:16:47,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/84d0ec303/4747fad7be224b7ebedc199140ae2ff9/FLAGd1c246162 [2019-11-19 22:16:47,766 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:16:47,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-19 22:16:47,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/84d0ec303/4747fad7be224b7ebedc199140ae2ff9/FLAGd1c246162 [2019-11-19 22:16:47,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/84d0ec303/4747fad7be224b7ebedc199140ae2ff9 [2019-11-19 22:16:47,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:16:47,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:16:47,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:16:47,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:16:47,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:16:47,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:16:47" (1/1) ... [2019-11-19 22:16:47,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f29b82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:47, skipping insertion in model container [2019-11-19 22:16:47,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:16:47" (1/1) ... [2019-11-19 22:16:47,815 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:16:47,834 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:16:48,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:16:48,103 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:16:48,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:16:48,168 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:16:48,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48 WrapperNode [2019-11-19 22:16:48,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:16:48,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:16:48,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:16:48,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:16:48,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:16:48,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:16:48,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:16:48,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:16:48,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... [2019-11-19 22:16:48,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:16:48,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:16:48,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:16:48,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:16:48,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/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 [2019-11-19 22:16:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:16:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 22:16:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:16:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 22:16:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:16:48,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:16:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:16:48,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:16:48,668 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:16:48,669 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-19 22:16:48,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:48 BoogieIcfgContainer [2019-11-19 22:16:48,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:16:48,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:16:48,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:16:48,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:16:48,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:16:47" (1/3) ... [2019-11-19 22:16:48,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12678d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:16:48, skipping insertion in model container [2019-11-19 22:16:48,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:48" (2/3) ... [2019-11-19 22:16:48,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12678d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:16:48, skipping insertion in model container [2019-11-19 22:16:48,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:48" (3/3) ... [2019-11-19 22:16:48,690 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2019-11-19 22:16:48,715 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:16:48,722 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:16:48,735 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:16:48,761 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:16:48,761 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:16:48,762 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:16:48,762 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:16:48,762 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:16:48,762 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:16:48,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:16:48,763 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:16:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-19 22:16:48,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 22:16:48,786 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:48,787 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:48,788 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:16:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:48,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-19 22:16:48,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:16:48,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619076696] [2019-11-19 22:16:48,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:16:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:48,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:48,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619076696] [2019-11-19 22:16:48,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:16:48,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:16:48,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668127673] [2019-11-19 22:16:48,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:16:48,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:16:48,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:16:48,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:16:48,949 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-19 22:16:48,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:48,970 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-19 22:16:48,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:16:48,971 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 22:16:48,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:48,982 INFO L225 Difference]: With dead ends: 48 [2019-11-19 22:16:48,982 INFO L226 Difference]: Without dead ends: 22 [2019-11-19 22:16:48,986 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 [2019-11-19 22:16:49,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-19 22:16:49,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-19 22:16:49,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 22:16:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-19 22:16:49,022 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-19 22:16:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:49,023 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 22:16:49,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:16:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-19 22:16:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 22:16:49,024 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:49,024 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:49,024 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:16:49,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:49,024 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-19 22:16:49,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:16:49,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214894286] [2019-11-19 22:16:49,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:16:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:16:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:16:49,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:16:49,120 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:16:49,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:16:49 BoogieIcfgContainer [2019-11-19 22:16:49,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:16:49,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:16:49,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:16:49,147 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:16:49,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:48" (3/4) ... [2019-11-19 22:16:49,150 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:16:49,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:16:49,153 INFO L168 Benchmark]: Toolchain (without parser) took 1359.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 410.3 kB. Max. memory is 11.5 GB. [2019-11-19 22:16:49,153 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-19 22:16:49,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -205.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:49,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:16:49,155 INFO L168 Benchmark]: Boogie Preprocessor took 40.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:49,156 INFO L168 Benchmark]: RCFGBuilder took 419.17 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:49,156 INFO L168 Benchmark]: TraceAbstraction took 474.92 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. [2019-11-19 22:16:49,157 INFO L168 Benchmark]: Witness Printer took 4.49 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. [2019-11-19 22:16:49,160 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 373.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -205.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 419.17 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 474.92 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 4.49 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: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = -0.0f; [L13] __uint32_t w; [L15] int exponent_less_127; [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 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=25occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 [2019-11-19 22:16:51,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:16:51,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:16:51,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:16:51,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:16:51,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:16:51,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:16:51,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:16:51,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:16:51,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:16:51,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:16:51,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:16:51,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:16:51,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:16:51,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:16:51,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:16:51,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:16:51,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:16:51,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:16:51,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:16:51,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:16:51,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:16:51,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:16:51,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:16:51,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:16:51,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:16:51,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:16:51,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:16:51,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:16:51,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:16:51,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:16:51,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:16:51,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:16:51,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:16:51,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:16:51,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:16:51,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:16:51,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:16:51,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:16:51,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:16:51,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:16:51,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 22:16:51,143 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:16:51,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:16:51,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:16:51,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:16:51,149 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:16:51,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:16:51,150 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:16:51,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:16:51,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:16:51,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:16:51,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:16:51,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:16:51,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:16:51,153 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:16:51,153 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:16:51,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:16:51,154 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:16:51,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:16:51,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:16:51,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:16:51,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:16:51,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:16:51,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:16:51,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:16:51,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:16:51,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:16:51,157 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:16:51,157 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:16:51,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:16:51,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:16:51,158 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_5396c542-418d-4e41-9e4e-3248178a237e/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2019-11-19 22:16:51,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:16:51,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:16:51,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:16:51,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:16:51,449 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:16:51,450 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-19 22:16:51,511 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/04373140f/a249daa10b7c4df996d6f564bf55b4fa/FLAG7c47f79a0 [2019-11-19 22:16:51,907 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:16:51,908 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-19 22:16:51,914 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/04373140f/a249daa10b7c4df996d6f564bf55b4fa/FLAG7c47f79a0 [2019-11-19 22:16:52,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/data/04373140f/a249daa10b7c4df996d6f564bf55b4fa [2019-11-19 22:16:52,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:16:52,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:16:52,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:16:52,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:16:52,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:16:52,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d727675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52, skipping insertion in model container [2019-11-19 22:16:52,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,315 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:16:52,330 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:16:52,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:16:52,492 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:16:52,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:16:52,543 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:16:52,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52 WrapperNode [2019-11-19 22:16:52,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:16:52,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:16:52,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:16:52,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:16:52,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:16:52,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:16:52,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:16:52,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:16:52,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... [2019-11-19 22:16:52,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:16:52,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:16:52,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:16:52,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:16:52,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/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 [2019-11-19 22:16:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:16:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 22:16:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 22:16:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:16:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:16:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 22:16:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 22:16:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:16:53,115 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:16:53,116 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-19 22:16:53,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:53 BoogieIcfgContainer [2019-11-19 22:16:53,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:16:53,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:16:53,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:16:53,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:16:53,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:16:52" (1/3) ... [2019-11-19 22:16:53,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520e6bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:16:53, skipping insertion in model container [2019-11-19 22:16:53,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:52" (2/3) ... [2019-11-19 22:16:53,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520e6bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:16:53, skipping insertion in model container [2019-11-19 22:16:53,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:53" (3/3) ... [2019-11-19 22:16:53,123 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2019-11-19 22:16:53,130 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:16:53,136 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:16:53,144 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:16:53,163 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:16:53,163 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:16:53,164 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:16:53,164 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:16:53,164 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:16:53,164 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:16:53,164 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:16:53,164 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:16:53,174 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-19 22:16:53,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 22:16:53,179 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:53,180 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:53,181 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:16:53,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:53,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-19 22:16:53,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:53,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322213732] [2019-11-19 22:16:53,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/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 [2019-11-19 22:16:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:53,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 22:16:53,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:53,298 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:53,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322213732] [2019-11-19 22:16:53,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:16:53,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 22:16:53,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536346752] [2019-11-19 22:16:53,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:16:53,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:53,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:16:53,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:16:53,321 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-19 22:16:53,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:53,334 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-19 22:16:53,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:16:53,335 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 22:16:53,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:53,342 INFO L225 Difference]: With dead ends: 48 [2019-11-19 22:16:53,342 INFO L226 Difference]: Without dead ends: 22 [2019-11-19 22:16:53,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:16:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-19 22:16:53,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-19 22:16:53,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 22:16:53,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-19 22:16:53,373 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-19 22:16:53,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:53,373 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 22:16:53,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:16:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-19 22:16:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 22:16:53,374 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:53,374 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:53,575 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 22:16:53,575 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:16:53,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:53,575 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-19 22:16:53,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:53,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508784389] [2019-11-19 22:16:53,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/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 [2019-11-19 22:16:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:53,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 22:16:53,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:53,742 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:53,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:53,855 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508784389] [2019-11-19 22:16:53,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:16:53,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 22:16:53,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712933279] [2019-11-19 22:16:53,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:16:53,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:53,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:16:53,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:16:53,861 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2019-11-19 22:16:53,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:53,974 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-11-19 22:16:53,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:16:53,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-19 22:16:53,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:53,975 INFO L225 Difference]: With dead ends: 34 [2019-11-19 22:16:53,975 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 22:16:53,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-19 22:16:53,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 22:16:53,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-19 22:16:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 22:16:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-19 22:16:53,981 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2019-11-19 22:16:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:53,982 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-19 22:16:53,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:16:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-19 22:16:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 22:16:53,983 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:53,983 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:54,200 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 22:16:54,201 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:16:54,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:54,201 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2019-11-19 22:16:54,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:54,202 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083997621] [2019-11-19 22:16:54,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/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 [2019-11-19 22:16:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:54,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:16:54,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:54,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:54,352 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:54,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:54,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083997621] [2019-11-19 22:16:54,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:16:54,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-19 22:16:54,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788415524] [2019-11-19 22:16:54,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-19 22:16:54,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:54,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-19 22:16:54,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:16:54,426 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2019-11-19 22:16:54,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:54,670 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-11-19 22:16:54,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:16:54,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-11-19 22:16:54,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:54,672 INFO L225 Difference]: With dead ends: 23 [2019-11-19 22:16:54,672 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 22:16:54,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-19 22:16:54,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 22:16:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-19 22:16:54,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 22:16:54,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2019-11-19 22:16:54,677 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2019-11-19 22:16:54,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:54,677 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2019-11-19 22:16:54,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-19 22:16:54,678 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2019-11-19 22:16:54,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-19 22:16:54,678 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:54,678 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:54,879 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 22:16:54,879 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:16:54,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:54,880 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2019-11-19 22:16:54,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:54,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888449467] [2019-11-19 22:16:54,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-19 22:16:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:54,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-19 22:16:54,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:55,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:55,097 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:55,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:55,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888449467] [2019-11-19 22:16:55,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:16:55,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2019-11-19 22:16:55,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305566344] [2019-11-19 22:16:55,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-19 22:16:55,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:55,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-19 22:16:55,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-11-19 22:16:55,502 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2019-11-19 22:16:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:55,796 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-11-19 22:16:55,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 22:16:55,798 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2019-11-19 22:16:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:55,799 INFO L225 Difference]: With dead ends: 20 [2019-11-19 22:16:55,799 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:16:55,800 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2019-11-19 22:16:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:16:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:16:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:16:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:16:55,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-19 22:16:55,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:55,801 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:16:55,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-19 22:16:55,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:16:55,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:16:56,010 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-19 22:16:56,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:16:56,203 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-19 22:16:56,284 INFO L440 ceAbstractionStarter]: At program point L64(lines 55 65) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short8| (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_main_~res~0 .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-19 22:16:56,284 INFO L440 ceAbstractionStarter]: At program point L52(lines 12 53) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-19 22:16:56,284 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 22:16:56,285 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:16:56,285 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:16:56,285 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-19 22:16:56,285 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-11-19 22:16:56,285 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2019-11-19 22:16:56,285 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2019-11-19 22:16:56,286 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:16:56,286 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2019-11-19 22:16:56,286 INFO L444 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2019-11-19 22:16:56,286 INFO L440 ceAbstractionStarter]: At program point L58-2(lines 58 62) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short8| (= ULTIMATE.start_main_~res~0 .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-19 22:16:56,286 INFO L444 ceAbstractionStarter]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2019-11-19 22:16:56,286 INFO L444 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-19 22:16:56,287 INFO L440 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.neg (_ +zero 8 24))) [2019-11-19 22:16:56,287 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-19 22:16:56,287 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-19 22:16:56,287 INFO L444 ceAbstractionStarter]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-11-19 22:16:56,287 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2019-11-19 22:16:56,287 INFO L447 ceAbstractionStarter]: At program point L84(lines 67 85) the Hoare annotation is: true [2019-11-19 22:16:56,287 INFO L444 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-19 22:16:56,288 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2019-11-19 22:16:56,288 INFO L444 ceAbstractionStarter]: For program point L47-1(lines 12 53) no Hoare annotation was computed. [2019-11-19 22:16:56,288 INFO L444 ceAbstractionStarter]: For program point L47-2(lines 47 51) no Hoare annotation was computed. [2019-11-19 22:16:56,300 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,305 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,305 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:16:56 BoogieIcfgContainer [2019-11-19 22:16:56,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:16:56,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:16:56,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:16:56,315 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:16:56,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:53" (3/4) ... [2019-11-19 22:16:56,319 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:16:56,330 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-19 22:16:56,330 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-19 22:16:56,331 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:16:56,357 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-19 22:16:56,358 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-19 22:16:56,358 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-19 22:16:56,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5396c542-418d-4e41-9e4e-3248178a237e/bin/uautomizer/witness.graphml [2019-11-19 22:16:56,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:16:56,385 INFO L168 Benchmark]: Toolchain (without parser) took 4090.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 956.4 MB in the beginning and 922.2 MB in the end (delta: 34.2 MB). Peak memory consumption was 186.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:56,386 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:16:56,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.23 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 944.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:56,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:56,387 INFO L168 Benchmark]: Boogie Preprocessor took 42.45 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. [2019-11-19 22:16:56,388 INFO L168 Benchmark]: RCFGBuilder took 398.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:56,388 INFO L168 Benchmark]: TraceAbstraction took 3196.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.9 MB in the end (delta: 193.3 MB). Peak memory consumption was 193.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:56,389 INFO L168 Benchmark]: Witness Printer took 69.15 ms. Allocated memory is still 1.2 GB. Free memory was 928.9 MB in the beginning and 922.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:16:56,391 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.23 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 944.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 131.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.45 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 398.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3196.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.9 MB in the end (delta: 193.3 MB). Peak memory consumption was 193.3 MB. Max. memory is 11.5 GB. * Witness Printer took 69.15 ms. Allocated memory is still 1.2 GB. Free memory was 928.9 MB in the beginning and 922.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 17]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 55]: Loop Invariant [2019-11-19 22:16:56,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 58]: Loop Invariant [2019-11-19 22:16:56,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 12]: Loop Invariant [2019-11-19 22:16:56,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 22:16:56,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 158 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 59 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 10036 SizeOfPredicates, 25 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...