./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c .................................................................................................................................................................................................................................................................................................................. 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_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ............................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:35:01,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:35:01,815 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:35:01,824 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:35:01,824 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:35:01,825 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:35:01,826 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:35:01,827 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:35:01,828 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:35:01,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:35:01,829 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:35:01,829 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:35:01,830 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:35:01,831 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:35:01,831 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:35:01,832 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:35:01,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:35:01,833 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:35:01,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:35:01,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:35:01,836 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:35:01,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:35:01,839 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:35:01,839 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:35:01,839 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:35:01,840 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:35:01,841 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:35:01,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:35:01,841 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:35:01,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:35:01,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:35:01,842 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:35:01,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:35:01,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:35:01,843 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:35:01,843 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:35:01,844 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 10:35:01,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:35:01,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:35:01,853 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:35:01,853 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:35:01,853 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:35:01,853 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:35:01,854 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:35:01,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:35:01,854 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:35:01,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:35:01,854 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:35:01,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:35:01,855 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 10:35:01,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:35:01,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 10:35:01,855 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:35:01,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:35:01,855 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:35:01,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 10:35:01,856 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:35:01,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:35:01,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:35:01,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:35:01,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:35:01,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:35:01,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:35:01,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 10:35:01,857 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:35:01,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:35:01,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 10:35:01,857 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_462144ff-1626-4097-a496-60d76b043fec/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-28 10:35:01,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:35:01,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:35:01,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:35:01,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:35:01,894 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:35:01,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-28 10:35:01,939 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/afc34449c/51bbc64eee994eb8bfba8dea03344eff/FLAG0669f18fd [2018-11-28 10:35:02,277 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:35:02,278 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-28 10:35:02,283 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/afc34449c/51bbc64eee994eb8bfba8dea03344eff/FLAG0669f18fd [2018-11-28 10:35:02,700 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/afc34449c/51bbc64eee994eb8bfba8dea03344eff [2018-11-28 10:35:02,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:35:02,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:35:02,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:02,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:35:02,707 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:35:02,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75db7e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02, skipping insertion in model container [2018-11-28 10:35:02,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:35:02,726 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:35:02,830 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:02,832 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:35:02,846 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:02,859 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:35:02,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02 WrapperNode [2018-11-28 10:35:02,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:02,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:02,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:35:02,860 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:35:02,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:02,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:35:02,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:35:02,875 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:35:02,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... [2018-11-28 10:35:02,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:35:02,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:35:02,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:35:02,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:35:02,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/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 [2018-11-28 10:35:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 10:35:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 10:35:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 10:35:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 10:35:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 10:35:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 10:35:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 10:35:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:35:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:35:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:35:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 10:35:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 10:35:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 10:35:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-28 10:35:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-28 10:35:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 10:35:03,141 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:35:03,142 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 10:35:03,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:03 BoogieIcfgContainer [2018-11-28 10:35:03,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:35:03,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:35:03,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:35:03,145 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:35:03,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:35:02" (1/3) ... [2018-11-28 10:35:03,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5351d4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:03, skipping insertion in model container [2018-11-28 10:35:03,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:02" (2/3) ... [2018-11-28 10:35:03,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5351d4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:03, skipping insertion in model container [2018-11-28 10:35:03,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:03" (3/3) ... [2018-11-28 10:35:03,148 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-28 10:35:03,154 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:35:03,159 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 10:35:03,172 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 10:35:03,190 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:35:03,191 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:35:03,191 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 10:35:03,191 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:35:03,191 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:35:03,191 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:35:03,191 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:35:03,191 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:35:03,191 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:35:03,203 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-28 10:35:03,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 10:35:03,207 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:03,207 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] [2018-11-28 10:35:03,209 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:03,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:03,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1088803944, now seen corresponding path program 1 times [2018-11-28 10:35:03,213 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:35:03,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:35:03,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:03,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:03,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:03,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:03,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:35:03,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 10:35:03,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 10:35:03,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 10:35:03,310 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-28 10:35:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:03,322 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-11-28 10:35:03,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 10:35:03,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 10:35:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:03,329 INFO L225 Difference]: With dead ends: 70 [2018-11-28 10:35:03,329 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 10:35:03,331 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 [2018-11-28 10:35:03,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 10:35:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-28 10:35:03,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 10:35:03,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-11-28 10:35:03,359 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-11-28 10:35:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:03,359 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-11-28 10:35:03,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 10:35:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-11-28 10:35:03,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 10:35:03,360 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:03,361 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:03,361 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:03,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:03,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1824817680, now seen corresponding path program 1 times [2018-11-28 10:35:03,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:35:03,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:35:03,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:03,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:03,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:35:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:35:03,439 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 10:35:03,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:35:03 BoogieIcfgContainer [2018-11-28 10:35:03,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 10:35:03,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:35:03,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:35:03,460 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:35:03,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:03" (3/4) ... [2018-11-28 10:35:03,462 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:35:03,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:35:03,463 INFO L168 Benchmark]: Toolchain (without parser) took 760.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:03,465 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:35:03,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.24 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:03,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.91 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:03,466 INFO L168 Benchmark]: Boogie Preprocessor took 55.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 939.9 MB in the beginning and 1.2 GB in the end (delta: -218.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:03,467 INFO L168 Benchmark]: RCFGBuilder took 211.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:03,467 INFO L168 Benchmark]: TraceAbstraction took 316.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:03,468 INFO L168 Benchmark]: Witness Printer took 3.09 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. [2018-11-28 10:35:03,470 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.24 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 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 14.91 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 939.9 MB in the beginning and 1.2 GB in the end (delta: -218.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 211.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 316.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 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: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 66, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L68] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [\old(x)=6442450949, \result=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L68] RET, EXPR ceil_float(x) VAL [ceil_float(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L68] float res = ceil_float(x); [L71] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000] [L57] return x != x; VAL [\old(x)=6442450949, \result=0, huge_ceil=1000000000000000000000000000000, x=6442450949] [L71] RET, EXPR isnan_float(res) VAL [huge_ceil=1000000000000000000000000000000, isnan_float(res)=0, res=6442450949, x=6442450949] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:35:04,907 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:35:04,907 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:35:04,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:35:04,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:35:04,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:35:04,916 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:35:04,918 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:35:04,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:35:04,919 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:35:04,920 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:35:04,920 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:35:04,921 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:35:04,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:35:04,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:35:04,923 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:35:04,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:35:04,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:35:04,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:35:04,927 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:35:04,928 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:35:04,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:35:04,930 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:35:04,930 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:35:04,930 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:35:04,931 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:35:04,931 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:35:04,932 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:35:04,933 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:35:04,933 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:35:04,934 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:35:04,934 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:35:04,934 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:35:04,934 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:35:04,935 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:35:04,935 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:35:04,936 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 10:35:04,946 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:35:04,946 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:35:04,947 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:35:04,947 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:35:04,947 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:35:04,948 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:35:04,948 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:35:04,948 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:35:04,948 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:35:04,948 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:35:04,948 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:35:04,949 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:35:04,950 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 10:35:04,950 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:35:04,950 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:35:04,950 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:35:04,950 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:35:04,950 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:35:04,951 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:35:04,951 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:35:04,951 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 10:35:04,951 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 10:35:04,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:35:04,951 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 10:35:04,951 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 10:35:04,952 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_462144ff-1626-4097-a496-60d76b043fec/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-28 10:35:04,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:35:04,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:35:04,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:35:04,991 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:35:04,991 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:35:04,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-28 10:35:05,041 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/e04a31eea/d7fc48b2552d420a877895b2eae77805/FLAG7c03facc5 [2018-11-28 10:35:05,360 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:35:05,360 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-28 10:35:05,364 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/e04a31eea/d7fc48b2552d420a877895b2eae77805/FLAG7c03facc5 [2018-11-28 10:35:05,796 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/data/e04a31eea/d7fc48b2552d420a877895b2eae77805 [2018-11-28 10:35:05,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:35:05,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:35:05,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:05,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:35:05,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:35:05,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:05,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465fea7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05, skipping insertion in model container [2018-11-28 10:35:05,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:05,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:35:05,820 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:35:05,931 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:05,935 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:35:05,956 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:05,973 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:35:05,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05 WrapperNode [2018-11-28 10:35:05,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:05,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:05,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:35:05,974 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:35:05,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:05,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:05,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:05,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:35:05,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:35:05,993 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:35:05,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:05,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:06,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:06,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:06,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:06,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:06,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... [2018-11-28 10:35:06,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:35:06,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:35:06,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:35:06,021 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:35:06,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/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 [2018-11-28 10:35:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 10:35:06,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 10:35:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 10:35:06,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 10:35:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:35:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 10:35:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:35:06,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:35:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 10:35:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 10:35:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 10:35:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-28 10:35:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-28 10:35:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 10:35:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 10:35:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 10:35:06,408 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:06,575 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:35:06,575 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 10:35:06,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:06 BoogieIcfgContainer [2018-11-28 10:35:06,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:35:06,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:35:06,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:35:06,578 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:35:06,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:35:05" (1/3) ... [2018-11-28 10:35:06,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257cf6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:06, skipping insertion in model container [2018-11-28 10:35:06,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:05" (2/3) ... [2018-11-28 10:35:06,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257cf6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:06, skipping insertion in model container [2018-11-28 10:35:06,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:06" (3/3) ... [2018-11-28 10:35:06,580 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-28 10:35:06,586 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:35:06,591 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 10:35:06,600 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 10:35:06,619 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:35:06,620 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:35:06,620 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 10:35:06,620 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:35:06,620 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:35:06,620 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:35:06,620 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:35:06,620 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:35:06,621 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:35:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-28 10:35:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 10:35:06,637 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:06,637 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] [2018-11-28 10:35:06,639 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:06,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash 440212005, now seen corresponding path program 1 times [2018-11-28 10:35:06,645 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 10:35:06,645 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/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 [2018-11-28 10:35:06,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:06,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:06,713 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:06,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:06,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:35:06,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 10:35:06,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 10:35:06,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 10:35:06,734 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-28 10:35:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:06,748 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-11-28 10:35:06,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 10:35:06,749 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 10:35:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:06,756 INFO L225 Difference]: With dead ends: 68 [2018-11-28 10:35:06,756 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 10:35:06,759 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 [2018-11-28 10:35:06,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 10:35:06,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-28 10:35:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 10:35:06,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-11-28 10:35:06,783 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-11-28 10:35:06,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:06,784 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-11-28 10:35:06,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 10:35:06,784 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-11-28 10:35:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 10:35:06,785 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:06,785 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] [2018-11-28 10:35:06,785 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:06,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:06,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1644236608, now seen corresponding path program 1 times [2018-11-28 10:35:06,786 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 10:35:06,786 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/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 [2018-11-28 10:35:06,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:06,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:07,298 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:07,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:07,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 10:35:07,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 10:35:07,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 10:35:07,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 10:35:07,306 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-11-28 10:35:07,729 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 10:35:08,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:08,736 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-28 10:35:08,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 10:35:08,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 10:35:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:08,740 INFO L225 Difference]: With dead ends: 43 [2018-11-28 10:35:08,740 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 10:35:08,741 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 10:35:08,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 10:35:08,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-28 10:35:08,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 10:35:08,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-11-28 10:35:08,749 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-11-28 10:35:08,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:08,749 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-28 10:35:08,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 10:35:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-11-28 10:35:08,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 10:35:08,750 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:08,750 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] [2018-11-28 10:35:08,754 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:08,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:08,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1840750113, now seen corresponding path program 1 times [2018-11-28 10:35:08,755 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 10:35:08,755 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 10:35:08,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:08,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:08,888 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:08,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:08,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 10:35:08,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 10:35:08,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 10:35:08,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 10:35:08,897 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-11-28 10:35:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:09,362 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-11-28 10:35:09,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 10:35:09,363 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 10:35:09,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:09,364 INFO L225 Difference]: With dead ends: 41 [2018-11-28 10:35:09,364 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 10:35:09,364 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 10:35:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 10:35:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 10:35:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 10:35:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-28 10:35:09,367 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-11-28 10:35:09,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:09,367 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-28 10:35:09,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 10:35:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-28 10:35:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 10:35:09,368 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:09,368 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:09,368 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:09,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:09,369 INFO L82 PathProgramCache]: Analyzing trace with hash -580032546, now seen corresponding path program 1 times [2018-11-28 10:35:09,369 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 10:35:09,369 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 10:35:09,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:09,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:09,496 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:09,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:09,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 10:35:09,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 10:35:09,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 10:35:09,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 10:35:09,509 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-11-28 10:35:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:10,061 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-28 10:35:10,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 10:35:10,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 10:35:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:10,063 INFO L225 Difference]: With dead ends: 39 [2018-11-28 10:35:10,063 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 10:35:10,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-28 10:35:10,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 10:35:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 10:35:10,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 10:35:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 10:35:10,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 10:35:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:10,064 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:35:10,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 10:35:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:35:10,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 10:35:10,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 10:35:10,125 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 57) no Hoare annotation was computed. [2018-11-28 10:35:10,125 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 57) the Hoare annotation is: true [2018-11-28 10:35:10,125 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 57) no Hoare annotation was computed. [2018-11-28 10:35:10,126 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 10:35:10,126 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 10:35:10,126 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 10:35:10,126 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 10:35:10,126 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 10:35:10,126 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 10:35:10,126 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 10:35:10,126 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 59 77) the Hoare annotation is: true [2018-11-28 10:35:10,126 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 59 77) no Hoare annotation was computed. [2018-11-28 10:35:10,127 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 59 77) no Hoare annotation was computed. [2018-11-28 10:35:10,127 INFO L448 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-11-28 10:35:10,127 INFO L444 ceAbstractionStarter]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-28 10:35:10,127 INFO L448 ceAbstractionStarter]: For program point L71-1(lines 71 74) no Hoare annotation was computed. [2018-11-28 10:35:10,127 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2018-11-28 10:35:10,127 INFO L444 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-28 10:35:10,127 INFO L448 ceAbstractionStarter]: For program point L68-1(line 68) no Hoare annotation was computed. [2018-11-28 10:35:10,127 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L451 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-28 10:35:10,128 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-28 10:35:10,129 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-28 10:35:10,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:35:10 BoogieIcfgContainer [2018-11-28 10:35:10,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 10:35:10,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:35:10,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:35:10,138 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:35:10,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:06" (3/4) ... [2018-11-28 10:35:10,141 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 10:35:10,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 10:35:10,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 10:35:10,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 10:35:10,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-28 10:35:10,149 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-28 10:35:10,149 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 10:35:10,149 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 10:35:10,167 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 10:35:10,186 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_462144ff-1626-4097-a496-60d76b043fec/bin-2019/uautomizer/witness.graphml [2018-11-28 10:35:10,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:35:10,187 INFO L168 Benchmark]: Toolchain (without parser) took 4389.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 942.0 MB in the beginning and 970.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 129.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:10,188 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:35:10,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.66 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:10,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.89 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:10,189 INFO L168 Benchmark]: Boogie Preprocessor took 27.03 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:35:10,189 INFO L168 Benchmark]: RCFGBuilder took 555.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:10,189 INFO L168 Benchmark]: TraceAbstraction took 3561.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.2 MB in the end (delta: 150.9 MB). Peak memory consumption was 150.9 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:10,190 INFO L168 Benchmark]: Witness Printer took 48.89 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 970.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:10,192 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.66 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.3 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 18.89 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.03 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 555.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3561.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.2 MB in the end (delta: 150.9 MB). Peak memory consumption was 150.9 MB. Max. memory is 11.5 GB. * Witness Printer took 48.89 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 970.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 13 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...