./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20ebedc7025deba0ba6b1d81eeaced9b389ea599 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20ebedc7025deba0ba6b1d81eeaced9b389ea599 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:00:26,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:00:26,759 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:00:26,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:00:26,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:00:26,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:00:26,769 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:00:26,770 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:00:26,772 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:00:26,772 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:00:26,773 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:00:26,773 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:00:26,774 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:00:26,774 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:00:26,775 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:00:26,775 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:00:26,776 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:00:26,777 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:00:26,778 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:00:26,779 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:00:26,780 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:00:26,781 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:00:26,782 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:00:26,782 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:00:26,783 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:00:26,783 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:00:26,784 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:00:26,784 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:00:26,785 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:00:26,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:00:26,786 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:00:26,786 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:00:26,786 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:00:26,787 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:00:26,787 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:00:26,788 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:00:26,788 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 03:00:26,797 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:00:26,797 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:00:26,798 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:00:26,798 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:00:26,799 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:00:26,799 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:00:26,799 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:00:26,799 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:00:26,799 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:00:26,799 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:00:26,800 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:00:26,801 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:00:26,801 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:00:26,801 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:00:26,801 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:00:26,801 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:00:26,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:00:26,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:00:26,802 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:00:26,802 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:00:26,802 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:00:26,802 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:00:26,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:00:26,802 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2018-11-23 03:00:26,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:00:26,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:00:26,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:00:26,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:00:26,838 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:00:26,839 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-23 03:00:26,884 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/da134e477/ba061c5b3ead4130ad90ef9ea3d63ae6/FLAGc8bacb2a0 [2018-11-23 03:00:27,213 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:00:27,213 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-23 03:00:27,219 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/da134e477/ba061c5b3ead4130ad90ef9ea3d63ae6/FLAGc8bacb2a0 [2018-11-23 03:00:27,230 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/da134e477/ba061c5b3ead4130ad90ef9ea3d63ae6 [2018-11-23 03:00:27,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:00:27,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:00:27,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:00:27,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:00:27,236 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:00:27,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f3803e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27, skipping insertion in model container [2018-11-23 03:00:27,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:00:27,257 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:00:27,372 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:00:27,374 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:00:27,387 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:00:27,400 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:00:27,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27 WrapperNode [2018-11-23 03:00:27,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:00:27,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:00:27,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:00:27,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:00:27,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:00:27,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:00:27,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:00:27,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:00:27,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... [2018-11-23 03:00:27,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:00:27,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:00:27,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:00:27,482 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:00:27,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:00:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 03:00:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 03:00:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 03:00:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 03:00:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:00:27,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:00:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 03:00:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:00:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-23 03:00:27,526 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-23 03:00:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:00:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:00:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 03:00:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:00:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:00:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:00:27,708 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:00:27,709 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 03:00:27,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:27 BoogieIcfgContainer [2018-11-23 03:00:27,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:00:27,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:00:27,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:00:27,713 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:00:27,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:00:27" (1/3) ... [2018-11-23 03:00:27,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e53a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:27, skipping insertion in model container [2018-11-23 03:00:27,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:27" (2/3) ... [2018-11-23 03:00:27,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e53a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:27, skipping insertion in model container [2018-11-23 03:00:27,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:27" (3/3) ... [2018-11-23 03:00:27,716 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031_true-unreach-call.c [2018-11-23 03:00:27,726 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:00:27,733 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:00:27,747 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:00:27,772 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:00:27,772 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:00:27,772 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:00:27,772 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:00:27,772 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:00:27,772 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:00:27,773 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:00:27,773 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:00:27,773 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:00:27,787 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-23 03:00:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 03:00:27,792 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:00:27,793 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:00:27,794 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:00:27,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:00:27,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1659352855, now seen corresponding path program 1 times [2018-11-23 03:00:27,799 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:00:27,799 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:00:27,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:00:27,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:00:27,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:00:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:00:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:00:27,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:00:27,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:00:27,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 03:00:27,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 03:00:27,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:00:27,897 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-23 03:00:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:00:27,909 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2018-11-23 03:00:27,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 03:00:27,910 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-23 03:00:27,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:00:27,917 INFO L225 Difference]: With dead ends: 60 [2018-11-23 03:00:27,917 INFO L226 Difference]: Without dead ends: 30 [2018-11-23 03:00:27,919 INFO L631 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 [2018-11-23 03:00:27,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-23 03:00:27,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-23 03:00:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 03:00:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-11-23 03:00:27,943 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2018-11-23 03:00:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:00:27,943 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-11-23 03:00:27,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 03:00:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-11-23 03:00:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 03:00:27,944 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:00:27,944 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:00:27,945 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:00:27,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:00:27,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1719916348, now seen corresponding path program 1 times [2018-11-23 03:00:27,945 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:00:27,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:00:27,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:00:27,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:00:27,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:00:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:00:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:00:28,012 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=12, |#NULL.offset|=5, |old(#NULL.base)|=12, |old(#NULL.offset)|=5] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=12, |old(#NULL.offset)|=5] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=12, |old(#NULL.offset)|=5] [?] RET #72#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret6 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret4 := round_float(~x~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] ~x := #in~x;havoc ~w~0;havoc ~exponent_less_127~0; VAL [round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4);call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4);call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4);~w~0 := #t~mem0;call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~mem0;havoc #t~union1;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [round_float_~w~0=8, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] goto; VAL [round_float_~w~0=8, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=8, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] assume !(~exponent_less_127~0 < 23); VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=8, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] assume 128 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=8, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] assume true; VAL [round_float_~exponent_less_127~0=128, round_float_~w~0=8, round_float_~x=11.0, |#NULL.base|=0, |#NULL.offset|=0, |round_float_#in~x|=11.0] [?] RET #76#return; VAL [main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret4|=10.0] [?] ~res~0 := #t~ret4;havoc #t~ret4; VAL [main_~res~0=10.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret5 := isnan_float(~res~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=10.0] [?] ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [isnan_float_~x=10.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=10.0, |isnan_float_#res|=0] [?] assume true; VAL [isnan_float_~x=10.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=10.0, |isnan_float_#res|=0] [?] RET #78#return; VAL [main_~res~0=10.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret5|=0] [?] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [main_~res~0=10.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret5|=0] [?] assume 0 == #t~ret5;havoc #t~ret5; VAL [main_~res~0=10.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=10.0, main_~x~0=11.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=12, #NULL.offset=5, old(#NULL.base)=12, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L65] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL.base=0, #NULL.offset=0] [L66] CALL call #t~ret4 := round_float(~x~0); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0] [L11-L52] ~x := #in~x; [L12] havoc ~w~0; [L14] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~x=11.0] [L17] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L18] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] ~w~0 := #t~mem0; [L19] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L17] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~w~0=8, ~x=11.0] [L22] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L24-L45] assume !(~exponent_less_127~0 < 23); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L40-L44] assume 128 == ~exponent_less_127~0; [L42] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L11-L52] ensures true; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L66] RET call #t~ret4 := round_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret4=10.0, ~x~0=11.0] [L66] ~res~0 := #t~ret4; [L66] havoc #t~ret4; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=11.0] [L69] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0] [L55] ~x := #in~x; [L55] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L55] ensures true; VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L69] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69-L72] assume 0 == #t~ret5; [L69] havoc #t~ret5; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=11.0] [L70] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=11.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=12, #NULL.offset=5, old(#NULL.base)=12, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=12, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L65] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL.base=0, #NULL.offset=0] [L66] CALL call #t~ret4 := round_float(~x~0); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0] [L11-L52] ~x := #in~x; [L12] havoc ~w~0; [L14] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~x=11.0] [L17] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L18] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] ~w~0 := #t~mem0; [L19] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L17] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~w~0=8, ~x=11.0] [L22] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L24-L45] assume !(~exponent_less_127~0 < 23); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L40-L44] assume 128 == ~exponent_less_127~0; [L42] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L11-L52] ensures true; VAL [#in~x=11.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L66] RET call #t~ret4 := round_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret4=10.0, ~x~0=11.0] [L66] ~res~0 := #t~ret4; [L66] havoc #t~ret4; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=11.0] [L69] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0] [L55] ~x := #in~x; [L55] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L55] ensures true; VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L69] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69-L72] assume 0 == #t~ret5; [L69] havoc #t~ret5; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=11.0] [L70] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=11.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L65] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L66] CALL call #t~ret4 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L11-L52] ~x := #in~x; [L12] havoc ~w~0; [L14] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~w~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=8, ~x=11.0] [L22] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L24] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L40] COND TRUE 128 == ~exponent_less_127~0 [L42] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L66] RET call #t~ret4 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=10.0, ~x~0=11.0] [L66] ~res~0 := #t~ret4; [L66] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L69] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L55] ~x := #in~x; [L55] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L69] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] COND TRUE 0 == #t~ret5 [L69] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L65] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L66] CALL call #t~ret4 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L11-L52] ~x := #in~x; [L12] havoc ~w~0; [L14] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~w~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=8, ~x=11.0] [L22] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L24] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L40] COND TRUE 128 == ~exponent_less_127~0 [L42] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L66] RET call #t~ret4 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=10.0, ~x~0=11.0] [L66] ~res~0 := #t~ret4; [L66] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L69] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L55] ~x := #in~x; [L55] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L69] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] COND TRUE 0 == #t~ret5 [L69] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L65] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L66] CALL call #t~ret4 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L11-L52] ~x := #in~x; [L12] havoc ~w~0; [L14] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~w~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=8, ~x=11.0] [L22] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L24] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L40] COND TRUE 128 == ~exponent_less_127~0 [L42] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L66] RET call #t~ret4 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=10.0, ~x~0=11.0] [L66] ~res~0 := #t~ret4; [L66] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L69] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L55] ~x := #in~x; [L55] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L69] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] COND TRUE 0 == #t~ret5 [L69] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=12, #NULL!offset=5, old(#NULL!base)=12, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=12, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L65] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L66] CALL call #t~ret4 := round_float(~x~0); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0] [L11-L52] ~x := #in~x; [L12] havoc ~w~0; [L14] havoc ~exponent_less_127~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~x=11.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~w~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~w~0=8, ~x=11.0] [L22] ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L24] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L40] COND TRUE 128 == ~exponent_less_127~0 [L42] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=11.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=128, ~w~0=8, ~x=11.0] [L66] RET call #t~ret4 := round_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=10.0, ~x~0=11.0] [L66] ~res~0 := #t~ret4; [L66] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L69] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L55] ~x := #in~x; [L55] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L69] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=10.0, ~x~0=11.0] [L69] COND TRUE 0 == #t~ret5 [L69] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=11.0] [L65] float x = 0.0f / 0.0f; [L66] CALL, EXPR round_float(x) VAL [\old(x)=11] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=11, x=11] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=11, exponent_less_127=128, w=8, x=11] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=11, exponent_less_127=128, w=8, x=11] [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; VAL [\old(x)=11, exponent_less_127=128, w=8, x=11] [L66] RET, EXPR round_float(x) VAL [round_float(x)=10, x=11] [L66] float res = round_float(x); [L69] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L55] return x != x; VAL [\old(x)=10, \result=0, x=10] [L69] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=11] [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() VAL [res=10, x=11] ----- [2018-11-23 03:00:28,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:00:28 BoogieIcfgContainer [2018-11-23 03:00:28,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:00:28,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:00:28,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:00:28,046 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:00:28,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:27" (3/4) ... [2018-11-23 03:00:28,050 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 03:00:28,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:00:28,051 INFO L168 Benchmark]: Toolchain (without parser) took 818.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:28,052 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:00:28,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.43 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:28,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:00:28,054 INFO L168 Benchmark]: Boogie Preprocessor took 62.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -214.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:28,054 INFO L168 Benchmark]: RCFGBuilder took 226.95 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:28,055 INFO L168 Benchmark]: TraceAbstraction took 336.12 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:28,055 INFO L168 Benchmark]: Witness Printer took 4.10 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. [2018-11-23 03:00:28,059 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.43 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -214.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 226.95 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 336.12 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.10 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: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L66] CALL, EXPR round_float(x) VAL [\old(x)=11] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=11, x=11] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=11, exponent_less_127=128, w=8, x=11] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=11, exponent_less_127=128, w=8, x=11] [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; VAL [\old(x)=11, exponent_less_127=128, w=8, x=11] [L66] RET, EXPR round_float(x) VAL [round_float(x)=10, x=11] [L66] float res = round_float(x); [L69] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L55] return x != x; VAL [\old(x)=10, \result=0, x=10] [L69] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=11] [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() VAL [res=10, x=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 03:00:29,503 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:00:29,504 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:00:29,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:00:29,512 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:00:29,513 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:00:29,514 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:00:29,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:00:29,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:00:29,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:00:29,517 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:00:29,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:00:29,518 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:00:29,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:00:29,520 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:00:29,520 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:00:29,522 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:00:29,523 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:00:29,525 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:00:29,526 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:00:29,526 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:00:29,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:00:29,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:00:29,530 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:00:29,530 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:00:29,531 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:00:29,531 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:00:29,532 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:00:29,532 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:00:29,534 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:00:29,534 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:00:29,535 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:00:29,535 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:00:29,535 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:00:29,536 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:00:29,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:00:29,536 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 03:00:29,548 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:00:29,548 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:00:29,549 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:00:29,549 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:00:29,549 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:00:29,549 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:00:29,550 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:00:29,550 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:00:29,550 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:00:29,550 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:00:29,550 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:00:29,550 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:00:29,550 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:00:29,550 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:00:29,551 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 03:00:29,551 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 03:00:29,551 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:00:29,551 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:00:29,551 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:00:29,551 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:00:29,551 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:00:29,552 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:00:29,552 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 03:00:29,553 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 03:00:29,553 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2018-11-23 03:00:29,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:00:29,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:00:29,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:00:29,594 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:00:29,594 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:00:29,595 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-23 03:00:29,632 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/84635be4e/4dd0dfb85ba0446a9547b2d5ec17833a/FLAGc8655386f [2018-11-23 03:00:29,961 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:00:29,961 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/sv-benchmarks/c/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-11-23 03:00:29,967 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/84635be4e/4dd0dfb85ba0446a9547b2d5ec17833a/FLAGc8655386f [2018-11-23 03:00:30,395 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/data/84635be4e/4dd0dfb85ba0446a9547b2d5ec17833a [2018-11-23 03:00:30,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:00:30,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:00:30,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:00:30,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:00:30,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:00:30,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f841f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30, skipping insertion in model container [2018-11-23 03:00:30,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:00:30,435 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:00:30,571 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:00:30,575 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:00:30,594 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:00:30,610 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:00:30,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30 WrapperNode [2018-11-23 03:00:30,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:00:30,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:00:30,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:00:30,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:00:30,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:00:30,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:00:30,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:00:30,630 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:00:30,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... [2018-11-23 03:00:30,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:00:30,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:00:30,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:00:30,653 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:00:30,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:00:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 03:00:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 03:00:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:00:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:00:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-23 03:00:30,735 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:00:30,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:00:30,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 03:00:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:00:30,914 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:00:30,914 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 03:00:30,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:30 BoogieIcfgContainer [2018-11-23 03:00:30,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:00:30,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:00:30,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:00:30,918 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:00:30,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:00:30" (1/3) ... [2018-11-23 03:00:30,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286bc88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:30, skipping insertion in model container [2018-11-23 03:00:30,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:30" (2/3) ... [2018-11-23 03:00:30,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286bc88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:30, skipping insertion in model container [2018-11-23 03:00:30,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:30" (3/3) ... [2018-11-23 03:00:30,920 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031_true-unreach-call.c [2018-11-23 03:00:30,926 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:00:30,930 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:00:30,943 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:00:30,963 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:00:30,964 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:00:30,964 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:00:30,964 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:00:30,964 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:00:30,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:00:30,965 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:00:30,965 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:00:30,965 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:00:30,975 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-23 03:00:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 03:00:30,979 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:00:30,979 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:00:30,981 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:00:30,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:00:30,984 INFO L82 PathProgramCache]: Analyzing trace with hash -20782665, now seen corresponding path program 1 times [2018-11-23 03:00:30,987 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:00:30,987 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-23 03:00:30,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:00:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:00:31,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:00:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:00:31,055 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:00:31,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:00:31,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:00:31,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 03:00:31,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 03:00:31,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:00:31,081 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-11-23 03:00:31,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:00:31,095 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions. [2018-11-23 03:00:31,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 03:00:31,096 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-23 03:00:31,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:00:31,103 INFO L225 Difference]: With dead ends: 58 [2018-11-23 03:00:31,103 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 03:00:31,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:00:31,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 03:00:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-23 03:00:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-23 03:00:31,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-23 03:00:31,131 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 21 [2018-11-23 03:00:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:00:31,132 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-23 03:00:31,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 03:00:31,132 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-23 03:00:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 03:00:31,133 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:00:31,133 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:00:31,133 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:00:31,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:00:31,133 INFO L82 PathProgramCache]: Analyzing trace with hash -928055160, now seen corresponding path program 1 times [2018-11-23 03:00:31,134 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:00:31,134 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/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 [2018-11-23 03:00:31,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:00:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:00:31,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:00:31,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:00:31,767 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:00:31,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:00:31,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 03:00:31,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 03:00:31,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 03:00:31,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 03:00:31,779 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 9 states. [2018-11-23 03:00:32,110 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-23 03:00:32,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:00:32,775 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2018-11-23 03:00:32,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 03:00:32,776 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-23 03:00:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:00:32,779 INFO L225 Difference]: With dead ends: 38 [2018-11-23 03:00:32,779 INFO L226 Difference]: Without dead ends: 31 [2018-11-23 03:00:32,780 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 03:00:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-23 03:00:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-11-23 03:00:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-23 03:00:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-11-23 03:00:32,788 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 22 [2018-11-23 03:00:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:00:32,788 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-11-23 03:00:32,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 03:00:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-11-23 03:00:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 03:00:32,790 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:00:32,790 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:00:32,793 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:00:32,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:00:32,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1124568665, now seen corresponding path program 1 times [2018-11-23 03:00:32,795 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:00:32,795 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/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 [2018-11-23 03:00:32,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:00:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:00:32,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:00:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:00:32,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:00:32,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:00:32,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 03:00:32,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 03:00:32,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 03:00:32,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 03:00:32,935 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 9 states. [2018-11-23 03:00:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:00:33,133 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-11-23 03:00:33,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 03:00:33,134 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-23 03:00:33,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:00:33,138 INFO L225 Difference]: With dead ends: 36 [2018-11-23 03:00:33,138 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 03:00:33,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 03:00:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 03:00:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-23 03:00:33,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 03:00:33,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-11-23 03:00:33,142 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2018-11-23 03:00:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:00:33,142 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-11-23 03:00:33,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 03:00:33,142 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-11-23 03:00:33,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 03:00:33,143 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:00:33,143 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:00:33,143 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:00:33,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:00:33,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1803590160, now seen corresponding path program 1 times [2018-11-23 03:00:33,144 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:00:33,144 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/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 [2018-11-23 03:00:33,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:00:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:00:33,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:00:33,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:00:33,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:00:33,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:00:33,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 03:00:33,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 03:00:33,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 03:00:33,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:00:33,308 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 7 states. [2018-11-23 03:00:33,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:00:33,557 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-23 03:00:33,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 03:00:33,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-23 03:00:33,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:00:33,558 INFO L225 Difference]: With dead ends: 28 [2018-11-23 03:00:33,558 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:00:33,558 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-23 03:00:33,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:00:33,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:00:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:00:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:00:33,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-23 03:00:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:00:33,559 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:00:33,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 03:00:33,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:00:33,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:00:33,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 03:00:33,622 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 55) no Hoare annotation was computed. [2018-11-23 03:00:33,622 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 55) the Hoare annotation is: true [2018-11-23 03:00:33,622 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 55) no Hoare annotation was computed. [2018-11-23 03:00:33,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:00:33,622 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:00:33,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:00:33,622 INFO L451 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 11 52) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L46-2(lines 46 50) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-11-23 03:00:33,623 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-11-23 03:00:33,624 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-23 03:00:33,624 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-23 03:00:33,624 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-11-23 03:00:33,624 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:00:33,624 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 03:00:33,624 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:00:33,624 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:00:33,624 INFO L448 ceAbstractionStarter]: For program point L66-1(line 66) no Hoare annotation was computed. [2018-11-23 03:00:33,624 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 57 75) the Hoare annotation is: true [2018-11-23 03:00:33,624 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 57 75) no Hoare annotation was computed. [2018-11-23 03:00:33,625 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2018-11-23 03:00:33,625 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 57 75) no Hoare annotation was computed. [2018-11-23 03:00:33,625 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 03:00:33,625 INFO L444 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-23 03:00:33,625 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 69 72) no Hoare annotation was computed. [2018-11-23 03:00:33,625 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-23 03:00:33,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:00:33 BoogieIcfgContainer [2018-11-23 03:00:33,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:00:33,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:00:33,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:00:33,634 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:00:33,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:30" (3/4) ... [2018-11-23 03:00:33,636 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:00:33,640 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-23 03:00:33,641 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 03:00:33,641 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-23 03:00:33,641 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 03:00:33,644 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-23 03:00:33,645 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 03:00:33,645 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:00:33,664 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-23 03:00:33,681 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e5107338-8ab4-4567-8ae6-1178f822ec4a/bin-2019/uautomizer/witness.graphml [2018-11-23 03:00:33,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:00:33,682 INFO L168 Benchmark]: Toolchain (without parser) took 3283.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 949.7 MB in the beginning and 913.6 MB in the end (delta: 36.1 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:33,683 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:00:33,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.26 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:33,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.24 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:00:33,684 INFO L168 Benchmark]: Boogie Preprocessor took 23.26 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:00:33,684 INFO L168 Benchmark]: RCFGBuilder took 261.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -130.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:33,685 INFO L168 Benchmark]: TraceAbstraction took 2717.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 920.5 MB in the end (delta: 143.4 MB). Peak memory consumption was 143.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:33,687 INFO L168 Benchmark]: Witness Printer took 48.52 ms. Allocated memory is still 1.1 GB. Free memory was 920.5 MB in the beginning and 913.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:00:33,688 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 210.26 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.24 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.26 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -130.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2717.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 920.5 MB in the end (delta: 143.4 MB). Peak memory consumption was 143.4 MB. Max. memory is 11.5 GB. * Witness Printer took 48.52 ms. Allocated memory is still 1.1 GB. Free memory was 920.5 MB in the beginning and 913.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 102 SDtfs, 46 SDslu, 362 SDs, 0 SdLazy, 146 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 12 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...