./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_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_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/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 c91754c7d707a58127a2dc4a18babac51d557647 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/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 c91754c7d707a58127a2dc4a18babac51d557647 ......................................................................................................................................................................................................................................................................................................................................................... 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 02:57:11,805 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:57:11,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:57:11,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:57:11,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:57:11,813 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:57:11,814 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:57:11,815 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:57:11,816 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:57:11,817 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:57:11,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:57:11,818 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:57:11,818 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:57:11,819 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:57:11,819 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:57:11,820 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:57:11,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:57:11,821 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:57:11,822 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:57:11,823 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:57:11,824 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:57:11,825 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:57:11,826 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:57:11,826 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:57:11,827 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:57:11,827 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:57:11,828 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:57:11,828 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:57:11,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:57:11,829 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:57:11,829 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:57:11,830 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:57:11,830 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:57:11,830 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:57:11,831 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:57:11,831 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:57:11,831 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 02:57:11,840 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:57:11,840 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:57:11,841 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:57:11,841 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:57:11,842 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 02:57:11,842 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 02:57:11,842 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 02:57:11,842 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:57:11,842 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:57:11,842 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:57:11,842 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:57:11,843 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:57:11,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:57:11,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:57:11,843 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:57:11,843 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:57:11,843 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:57:11,843 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:57:11,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:57:11,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:57:11,844 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:57:11,844 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:57:11,844 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:57:11,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:57:11,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:57:11,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:57:11,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:57:11,845 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 02:57:11,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:57:11,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:57:11,845 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_82c58865-67b1-4245-aacc-75fd4a44efeb/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-11-23 02:57:11,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:57:11,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:57:11,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:57:11,879 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:57:11,880 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:57:11,880 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:57:11,915 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/37d11c574/cbfe07835aa44fea9bf9f21b25b549ce/FLAGf68de0b60 [2018-11-23 02:57:12,314 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:57:12,315 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:57:12,319 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/37d11c574/cbfe07835aa44fea9bf9f21b25b549ce/FLAGf68de0b60 [2018-11-23 02:57:12,331 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/37d11c574/cbfe07835aa44fea9bf9f21b25b549ce [2018-11-23 02:57:12,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:57:12,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:57:12,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:57:12,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:57:12,339 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:57:12,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb2c58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12, skipping insertion in model container [2018-11-23 02:57:12,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:57:12,368 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:57:12,489 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:57:12,490 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:57:12,503 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:57:12,517 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:57:12,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12 WrapperNode [2018-11-23 02:57:12,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:57:12,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:57:12,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:57:12,518 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:57:12,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:57:12,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:57:12,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:57:12,535 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:57:12,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... [2018-11-23 02:57:12,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:57:12,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:57:12,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:57:12,588 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:57:12,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/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 02:57:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-11-23 02:57:12,619 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-11-23 02:57:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:57:12,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:57:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 02:57:12,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 02:57:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 02:57:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 02:57:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:57:12,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:57:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 02:57:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:57:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:57:12,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:57:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 02:57:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:57:12,765 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:57:12,765 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 02:57:12,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:12 BoogieIcfgContainer [2018-11-23 02:57:12,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:57:12,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:57:12,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:57:12,769 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:57:12,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:57:12" (1/3) ... [2018-11-23 02:57:12,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d1dc0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:12, skipping insertion in model container [2018-11-23 02:57:12,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:12" (2/3) ... [2018-11-23 02:57:12,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d1dc0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:12, skipping insertion in model container [2018-11-23 02:57:12,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:12" (3/3) ... [2018-11-23 02:57:12,771 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-11-23 02:57:12,779 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:57:12,783 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:57:12,795 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:57:12,814 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:57:12,815 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:57:12,815 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:57:12,815 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:57:12,815 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:57:12,815 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:57:12,815 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:57:12,815 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:57:12,816 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:57:12,825 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-23 02:57:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 02:57:12,829 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:57:12,830 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 02:57:12,831 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:57:12,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:57:12,834 INFO L82 PathProgramCache]: Analyzing trace with hash 961824128, now seen corresponding path program 1 times [2018-11-23 02:57:12,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:57:12,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:57:12,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:57:12,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:57:12,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:57:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:57:12,924 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 02:57:12,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:57:12,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 02:57:12,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 02:57:12,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 02:57:12,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:57:12,938 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-23 02:57:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:57:12,954 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2018-11-23 02:57:12,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 02:57:12,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-23 02:57:12,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:57:12,963 INFO L225 Difference]: With dead ends: 52 [2018-11-23 02:57:12,964 INFO L226 Difference]: Without dead ends: 26 [2018-11-23 02:57:12,966 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 02:57:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-23 02:57:12,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-23 02:57:12,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 02:57:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-11-23 02:57:12,996 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2018-11-23 02:57:12,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:57:12,996 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-11-23 02:57:12,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 02:57:12,996 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-11-23 02:57:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 02:57:12,997 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:57:12,997 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] [2018-11-23 02:57:12,997 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:57:12,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:57:12,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1472779928, now seen corresponding path program 1 times [2018-11-23 02:57:12,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:57:12,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:57:12,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:57:12,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:57:12,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:57:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:57:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:57:13,070 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=11, |#NULL.offset|=5, |old(#NULL.base)|=11, |old(#NULL.offset)|=5] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=11, |old(#NULL.offset)|=5] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=11, |old(#NULL.offset)|=5] [?] RET #57#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret9 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);~y~0 := #t~nondet6;havoc #t~nondet6; VAL [main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] ~x := #in~x;~y := #in~y;havoc ~ix~0;havoc ~iy~0; VAL [copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] 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);~ix~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 [copysign_float_~ix~0=16, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] goto; VAL [copysign_float_~ix~0=16, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] call ~#gf_u~1.base, ~#gf_u~1.offset := #Ultimate.alloc(4);call write~real(~y, ~#gf_u~1.base, ~#gf_u~1.offset, 4);call #t~mem2 := read~int(~#gf_u~1.base, ~#gf_u~1.offset, 4);~iy~0 := #t~mem2;call write~real(#t~union3, ~#gf_u~1.base, ~#gf_u~1.offset, 4);havoc #t~mem2;havoc #t~union3;call ULTIMATE.dealloc(~#gf_u~1.base, ~#gf_u~1.offset);havoc ~#gf_u~1.base, ~#gf_u~1.offset; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] goto; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4);call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), ~#sf_u~0.base, ~#sf_u~0.offset, 4);call #t~mem4 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4);~x := #t~mem4;call write~int(#t~union5, ~#sf_u~0.base, ~#sf_u~0.offset, 4);havoc #t~mem4;havoc #t~union5;call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset);havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] goto; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] #res := ~x; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0, |copysign_float_#res|=10.0] [?] assume true; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0, |copysign_float_#res|=10.0] [?] RET #61#return; VAL [main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret7|=10.0] [?] ~res~0 := #t~ret7;havoc #t~ret7; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret8 := 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 #63#return; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret8|=0] [?] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret8|=0] [?] assume 0 == #t~ret8;havoc #t~ret8; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=11, #NULL.offset=5, old(#NULL.base)=11, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~x=15.0, ~y=14.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~ix~0 := #t~mem0; [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] call ~#gf_u~1.base, ~#gf_u~1.offset := #Ultimate.alloc(4); [L21] call write~real(~y, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] call #t~mem2 := read~int(~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] ~iy~0 := #t~mem2; [L22] call write~real(#t~union3, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] call ULTIMATE.dealloc(~#gf_u~1.base, ~#gf_u~1.offset); [L20] havoc ~#gf_u~1.base, ~#gf_u~1.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L26] call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] call #t~mem4 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] ~x := #t~mem4; [L27] call write~int(#t~union5, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L25] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L12-L30] ensures true; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0] [L33] ~x := #in~x; [L33] #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] [L33] ensures true; VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48-L51] assume 0 == #t~ret8; [L48] havoc #t~ret8; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=11, #NULL.offset=5, old(#NULL.base)=11, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~x=15.0, ~y=14.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~ix~0 := #t~mem0; [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] call ~#gf_u~1.base, ~#gf_u~1.offset := #Ultimate.alloc(4); [L21] call write~real(~y, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] call #t~mem2 := read~int(~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] ~iy~0 := #t~mem2; [L22] call write~real(#t~union3, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] call ULTIMATE.dealloc(~#gf_u~1.base, ~#gf_u~1.offset); [L20] havoc ~#gf_u~1.base, ~#gf_u~1.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L26] call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] call #t~mem4 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] ~x := #t~mem4; [L27] call write~int(#t~union5, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L25] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L12-L30] ensures true; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0] [L33] ~x := #in~x; [L33] #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] [L33] ensures true; VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48-L51] assume 0 == #t~ret8; [L48] havoc #t~ret8; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #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] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #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] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #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] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #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] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L45] CALL, EXPR copysign_float(x, y) VAL [\old(x)=15, \old(y)=14] [L13] __uint32_t ix, iy; VAL [\old(x)=15, \old(y)=14, x=15, y=14] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; VAL [\old(x)=15, \old(y)=14, \result=10, ix=16, iy=20, x=10, y=14] [L45] RET, EXPR copysign_float(x, y) VAL [copysign_float(x, y)=10, x=15, y=14] [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L33] return x != x; VAL [\old(x)=10, \result=0, x=10] [L48] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=15, y=14] [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() VAL [res=10, x=15, y=14] ----- [2018-11-23 02:57:13,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:57:13 BoogieIcfgContainer [2018-11-23 02:57:13,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:57:13,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:57:13,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:57:13,110 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:57:13,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:12" (3/4) ... [2018-11-23 02:57:13,114 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 02:57:13,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:57:13,114 INFO L168 Benchmark]: Toolchain (without parser) took 780.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -136.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:13,116 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 02:57:13,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:13,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.32 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:13,117 INFO L168 Benchmark]: Boogie Preprocessor took 52.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:13,118 INFO L168 Benchmark]: RCFGBuilder took 177.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:13,119 INFO L168 Benchmark]: TraceAbstraction took 343.71 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: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:13,119 INFO L168 Benchmark]: Witness Printer took 3.83 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 02:57:13,122 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 182.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.32 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 177.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 343.71 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: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.83 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: 49]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L45] CALL, EXPR copysign_float(x, y) VAL [\old(x)=15, \old(y)=14] [L13] __uint32_t ix, iy; VAL [\old(x)=15, \old(y)=14, x=15, y=14] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; VAL [\old(x)=15, \old(y)=14, \result=10, ix=16, iy=20, x=10, y=14] [L45] RET, EXPR copysign_float(x, y) VAL [copysign_float(x, y)=10, x=15, y=14] [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L33] return x != x; VAL [\old(x)=10, \result=0, x=10] [L48] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=15, y=14] [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() VAL [res=10, x=15, y=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 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=30occurred 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, 47 NumberOfCodeBlocks, 47 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 02:57:14,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:57:14,533 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:57:14,542 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:57:14,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:57:14,542 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:57:14,543 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:57:14,544 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:57:14,545 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:57:14,546 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:57:14,547 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:57:14,547 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:57:14,547 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:57:14,548 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:57:14,549 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:57:14,549 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:57:14,550 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:57:14,551 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:57:14,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:57:14,553 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:57:14,554 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:57:14,555 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:57:14,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:57:14,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:57:14,556 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:57:14,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:57:14,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:57:14,558 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:57:14,559 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:57:14,559 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:57:14,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:57:14,560 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:57:14,560 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:57:14,560 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:57:14,561 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:57:14,561 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:57:14,562 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 02:57:14,571 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:57:14,572 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:57:14,572 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:57:14,572 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:57:14,573 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 02:57:14,573 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 02:57:14,573 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 02:57:14,573 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:57:14,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:57:14,573 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:57:14,573 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:57:14,574 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:57:14,574 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:57:14,574 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:57:14,574 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 02:57:14,574 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 02:57:14,574 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:57:14,574 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:57:14,575 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:57:14,575 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:57:14,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:57:14,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:57:14,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:57:14,575 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:57:14,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:57:14,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:57:14,576 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:57:14,576 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:57:14,576 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 02:57:14,576 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:57:14,576 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 02:57:14,576 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 02:57:14,576 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_82c58865-67b1-4245-aacc-75fd4a44efeb/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-11-23 02:57:14,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:57:14,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:57:14,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:57:14,618 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:57:14,619 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:57:14,619 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:57:14,661 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/764fab2ff/4c29ad765f3e43a78fbe0882ed8adae7/FLAGc45536fce [2018-11-23 02:57:14,958 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:57:14,959 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:57:14,962 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/764fab2ff/4c29ad765f3e43a78fbe0882ed8adae7/FLAGc45536fce [2018-11-23 02:57:14,972 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/data/764fab2ff/4c29ad765f3e43a78fbe0882ed8adae7 [2018-11-23 02:57:14,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:57:14,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:57:14,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:57:14,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:57:14,978 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:57:14,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:57:14" (1/1) ... [2018-11-23 02:57:14,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69196480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:14, skipping insertion in model container [2018-11-23 02:57:14,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:57:14" (1/1) ... [2018-11-23 02:57:14,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:57:14,999 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:57:15,115 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:57:15,118 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:57:15,133 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:57:15,148 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:57:15,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15 WrapperNode [2018-11-23 02:57:15,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:57:15,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:57:15,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:57:15,150 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:57:15,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:57:15,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:57:15,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:57:15,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:57:15,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... [2018-11-23 02:57:15,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:57:15,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:57:15,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:57:15,190 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:57:15,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/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 02:57:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-11-23 02:57:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-11-23 02:57:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:57:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:57:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-23 02:57:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 02:57:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 02:57:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:57:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:57:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:57:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 02:57:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:57:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:57:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 02:57:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 02:57:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:57:15,445 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:57:15,445 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 02:57:15,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:15 BoogieIcfgContainer [2018-11-23 02:57:15,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:57:15,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:57:15,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:57:15,449 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:57:15,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:57:14" (1/3) ... [2018-11-23 02:57:15,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f5e110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:15, skipping insertion in model container [2018-11-23 02:57:15,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:15" (2/3) ... [2018-11-23 02:57:15,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f5e110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:15, skipping insertion in model container [2018-11-23 02:57:15,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:15" (3/3) ... [2018-11-23 02:57:15,452 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-11-23 02:57:15,460 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:57:15,464 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:57:15,478 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:57:15,496 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:57:15,496 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:57:15,496 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:57:15,496 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:57:15,496 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:57:15,497 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:57:15,497 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:57:15,497 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:57:15,497 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:57:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-23 02:57:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 02:57:15,510 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:57:15,511 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 02:57:15,512 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:57:15,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:57:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1449244753, now seen corresponding path program 1 times [2018-11-23 02:57:15,518 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 02:57:15,518 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/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 02:57:15,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:57:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:57:15,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:57:15,586 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 02:57:15,586 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:57:15,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:57:15,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 02:57:15,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 02:57:15,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 02:57:15,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:57:15,606 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-11-23 02:57:15,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:57:15,618 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2018-11-23 02:57:15,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 02:57:15,620 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-23 02:57:15,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:57:15,627 INFO L225 Difference]: With dead ends: 50 [2018-11-23 02:57:15,627 INFO L226 Difference]: Without dead ends: 25 [2018-11-23 02:57:15,630 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 02:57:15,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-23 02:57:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-23 02:57:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 02:57:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-11-23 02:57:15,655 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 21 [2018-11-23 02:57:15,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:57:15,655 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-11-23 02:57:15,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 02:57:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-11-23 02:57:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 02:57:15,656 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:57:15,656 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] [2018-11-23 02:57:15,657 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:57:15,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:57:15,657 INFO L82 PathProgramCache]: Analyzing trace with hash -739473603, now seen corresponding path program 1 times [2018-11-23 02:57:15,657 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 02:57:15,657 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/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 02:57:15,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:57:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:57:15,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:57:16,041 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 02:57:16,042 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:57:16,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:57:16,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-23 02:57:16,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 02:57:16,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 02:57:16,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-23 02:57:16,055 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 11 states. [2018-11-23 02:57:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:57:16,533 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-11-23 02:57:16,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 02:57:16,533 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-11-23 02:57:16,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:57:16,533 INFO L225 Difference]: With dead ends: 25 [2018-11-23 02:57:16,533 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:57:16,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-11-23 02:57:16,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:57:16,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:57:16,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:57:16,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:57:16,535 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-11-23 02:57:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:57:16,535 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:57:16,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 02:57:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:57:16,535 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:57:16,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:57:16,590 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 33) no Hoare annotation was computed. [2018-11-23 02:57:16,590 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 33) the Hoare annotation is: true [2018-11-23 02:57:16,590 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 33) no Hoare annotation was computed. [2018-11-23 02:57:16,590 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:57:16,591 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L448 ceAbstractionStarter]: For program point copysign_floatEXIT(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2018-11-23 02:57:16,591 INFO L451 ceAbstractionStarter]: At program point copysign_floatENTRY(lines 12 30) the Hoare annotation is: true [2018-11-23 02:57:16,592 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-23 02:57:16,592 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= |copysign_float_#in~x| copysign_float_~x) [2018-11-23 02:57:16,592 INFO L448 ceAbstractionStarter]: For program point copysign_floatFINAL(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:57:16,592 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:57:16,592 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 02:57:16,592 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:57:16,592 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:57:16,592 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 02:57:16,593 INFO L444 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: (and (exists ((copysign_float_~iy~0 (_ BitVec 32)) (copysign_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) copysign_float_~ix~0) ((_ extract 30 23) copysign_float_~ix~0) ((_ extract 22 0) copysign_float_~ix~0)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (= main_~res~0 (let ((.cse0 (bvor (bvand (_ bv2147483647 32) copysign_float_~ix~0) (bvand (_ bv2147483648 32) copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-11-23 02:57:16,593 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 48 51) no Hoare annotation was computed. [2018-11-23 02:57:16,593 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 35 54) the Hoare annotation is: true [2018-11-23 02:57:16,593 INFO L444 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-23 02:57:16,593 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 35 54) no Hoare annotation was computed. [2018-11-23 02:57:16,593 INFO L448 ceAbstractionStarter]: For program point L45-1(line 45) no Hoare annotation was computed. [2018-11-23 02:57:16,593 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2018-11-23 02:57:16,593 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 35 54) no Hoare annotation was computed. [2018-11-23 02:57:16,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:57:16 BoogieIcfgContainer [2018-11-23 02:57:16,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:57:16,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:57:16,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:57:16,602 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:57:16,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:15" (3/4) ... [2018-11-23 02:57:16,604 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:57:16,609 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-23 02:57:16,609 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:57:16,609 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2018-11-23 02:57:16,610 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:57:16,613 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-23 02:57:16,613 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 02:57:16,613 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 02:57:16,631 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-23 02:57:16,641 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_82c58865-67b1-4245-aacc-75fd4a44efeb/bin-2019/uautomizer/witness.graphml [2018-11-23 02:57:16,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:57:16,642 INFO L168 Benchmark]: Toolchain (without parser) took 1667.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 949.2 MB in the beginning and 1.0 GB in the end (delta: -98.3 MB). Peak memory consumption was 76.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:16,643 INFO L168 Benchmark]: CDTParser took 0.16 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 02:57:16,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.52 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:16,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.18 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:57:16,643 INFO L168 Benchmark]: Boogie Preprocessor took 22.44 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:57:16,643 INFO L168 Benchmark]: RCFGBuilder took 256.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -211.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:16,644 INFO L168 Benchmark]: TraceAbstraction took 1154.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.5 MB). Peak memory consumption was 97.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:57:16,644 INFO L168 Benchmark]: Witness Printer took 40.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:57:16,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 173.52 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 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 17.18 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.44 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 256.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -211.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1154.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.5 MB). Peak memory consumption was 97.5 MB. Max. memory is 11.5 GB. * Witness Printer took 40.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 9 SDslu, 118 SDs, 0 SdLazy, 52 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 63 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 43 ConstructedInterpolants, 6 QuantifiedInterpolants, 7944 SizeOfPredicates, 7 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...