/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 4c9cffacfd3e6caa748d273206d3a84e636fe987 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 4c9cffacfd3e6caa748d273206d3a84e636fe987 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:19:54,840 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:54,842 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:54,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:54,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:54,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:54,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:54,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:54,860 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:54,860 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:54,861 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:54,862 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:54,862 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:54,863 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:54,865 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:54,865 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:54,866 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:54,868 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:54,870 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:54,872 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:54,873 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:54,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:54,880 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:54,880 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:54,880 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:54,883 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:54,884 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:54,885 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:54,888 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:54,889 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:54,893 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:54,894 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:54,895 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:54,895 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:54,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:54,898 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:54,898 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:19:54,913 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:54,913 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:54,914 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:54,914 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:54,915 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:54,915 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:54,915 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:54,915 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:54,915 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:54,916 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:19:54,916 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:54,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:54,916 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:54,916 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:54,916 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:54,917 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:54,917 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:54,917 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:54,917 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:54,917 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:54,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:54,918 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:54,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:54,918 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:54,918 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:54,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:54,919 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:19:54,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:54,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:19:54,919 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-09-20 15:19:54,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:54,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:54,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:55,000 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:55,000 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:55,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-09-20 15:19:55,355 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9d413d4/b1032c023f8d4f499c2916d35c8fec76/FLAG7c0c9d091 [2018-09-20 15:19:55,537 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:55,538 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-09-20 15:19:55,546 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9d413d4/b1032c023f8d4f499c2916d35c8fec76/FLAG7c0c9d091 [2018-09-20 15:19:55,562 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9d413d4/b1032c023f8d4f499c2916d35c8fec76 [2018-09-20 15:19:55,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:55,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:55,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:55,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:55,577 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:55,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619684cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55, skipping insertion in model container [2018-09-20 15:19:55,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,596 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:55,843 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:55,864 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:55,890 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:55,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55 WrapperNode [2018-09-20 15:19:55,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:55,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:55,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:55,944 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:55,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:55,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:56,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... [2018-09-20 15:19:56,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:56,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:56,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:56,007 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:56,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:19:56,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:56,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:19:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-20 15:19:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:19:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-20 15:19:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:19:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:19:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:19:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:19:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:19:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:19:57,038 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:57,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:57 BoogieIcfgContainer [2018-09-20 15:19:57,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:57,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:57,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:57,045 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:57,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:55" (1/3) ... [2018-09-20 15:19:57,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b1b15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:57, skipping insertion in model container [2018-09-20 15:19:57,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:55" (2/3) ... [2018-09-20 15:19:57,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b1b15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:57, skipping insertion in model container [2018-09-20 15:19:57,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:57" (3/3) ... [2018-09-20 15:19:57,050 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-09-20 15:19:57,062 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:57,071 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:57,139 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:57,140 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:57,140 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:57,140 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:57,140 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:57,140 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:57,141 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:57,141 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:57,142 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-09-20 15:19:57,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-20 15:19:57,178 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:57,179 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:57,182 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:57,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1023192564, now seen corresponding path program 1 times [2018-09-20 15:19:57,190 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:57,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:57,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:57,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:57,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:19:57,361 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:57,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:57,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:57,380 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:57,381 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:57,383 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2018-09-20 15:19:57,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:57,412 INFO L93 Difference]: Finished difference Result 162 states and 204 transitions. [2018-09-20 15:19:57,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:57,415 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-20 15:19:57,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:57,432 INFO L225 Difference]: With dead ends: 162 [2018-09-20 15:19:57,432 INFO L226 Difference]: Without dead ends: 81 [2018-09-20 15:19:57,438 INFO L606 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 [2018-09-20 15:19:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-20 15:19:57,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-20 15:19:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:19:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-09-20 15:19:57,483 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 16 [2018-09-20 15:19:57,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:57,483 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-09-20 15:19:57,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-09-20 15:19:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-20 15:19:57,485 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:57,485 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:57,485 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:57,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1392782034, now seen corresponding path program 1 times [2018-09-20 15:19:57,486 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:57,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:57,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:57,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:57,612 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:19:57,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:19:57 BoogieIcfgContainer [2018-09-20 15:19:57,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:19:57,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:19:57,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:19:57,660 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:19:57,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:57" (3/4) ... [2018-09-20 15:19:57,664 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:19:57,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:19:57,664 INFO L168 Benchmark]: Toolchain (without parser) took 2098.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,666 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:19:57,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,667 INFO L168 Benchmark]: Boogie Preprocessor took 62.15 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,668 INFO L168 Benchmark]: RCFGBuilder took 1032.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,669 INFO L168 Benchmark]: TraceAbstraction took 617.93 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:57,670 INFO L168 Benchmark]: Witness Printer took 4.50 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. [2018-09-20 15:19:57,674 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.15 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1032.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 617.93 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.50 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(huge_exp)=6442450947, \old(invln2_exp)=6442450949, \old(one_exp)=6442450962, \old(P1_exp)=6442450952, \old(P2_exp)=6442450954, \old(P3_exp)=6442450957, \old(P4_exp)=6442450960, \old(P5_exp)=6442450959, \old(twom100_exp)=6442450945, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = -0.0f; VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L42] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450958:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L43] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450958:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L44] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450958:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L44] (sx) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450958:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L44] FCALL (sx) = gf_u.word VAL [(sx) = gf_u.word=6442450961, \old(x)=6442450951, gf_u={6442450958:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L45] COND FALSE !(0) VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] RET return x + x; VAL [\old(x)=6442450951, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L118] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=6442450950, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450950, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L122] __VERIFIER_error() VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450950, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 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=85occurred 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, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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 0.1.23-40ef509 [2018-09-20 15:20:00,127 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:20:00,130 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:20:00,145 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:20:00,145 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:20:00,149 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:20:00,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:20:00,153 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:20:00,155 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:20:00,156 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:20:00,158 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:20:00,158 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:20:00,159 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:20:00,169 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:20:00,170 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:20:00,171 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:20:00,172 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:20:00,176 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:20:00,180 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:20:00,181 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:20:00,182 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:20:00,185 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:20:00,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:20:00,192 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:20:00,192 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:20:00,193 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:20:00,194 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:20:00,196 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:20:00,196 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:20:00,199 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:20:00,200 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:20:00,201 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:20:00,201 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:20:00,202 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:20:00,203 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:20:00,204 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:20:00,205 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:20:00,231 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:20:00,232 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:20:00,234 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:20:00,234 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:20:00,235 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:20:00,237 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:20:00,237 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:20:00,237 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:20:00,237 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:20:00,237 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:20:00,238 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:20:00,238 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:20:00,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:20:00,239 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:20:00,239 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:20:00,240 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:20:00,240 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:20:00,240 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:20:00,240 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:20:00,242 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:20:00,243 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:20:00,243 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:20:00,243 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:20:00,243 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:20:00,243 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:20:00,244 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:20:00,245 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:20:00,246 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:20:00,246 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:20:00,246 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:20:00,246 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:20:00,246 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-09-20 15:20:00,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:20:00,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:20:00,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:20:00,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:20:00,341 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:20:00,342 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-09-20 15:20:00,681 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0cc49a4/feded0e4fe744016b0dc6f5066135a76/FLAG1b78d8500 [2018-09-20 15:20:00,827 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:20:00,828 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-09-20 15:20:00,836 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0cc49a4/feded0e4fe744016b0dc6f5066135a76/FLAG1b78d8500 [2018-09-20 15:20:00,852 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0cc49a4/feded0e4fe744016b0dc6f5066135a76 [2018-09-20 15:20:00,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:20:00,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:20:00,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:20:00,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:20:00,870 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:20:00,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:20:00" (1/1) ... [2018-09-20 15:20:00,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:00, skipping insertion in model container [2018-09-20 15:20:00,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:20:00" (1/1) ... [2018-09-20 15:20:00,886 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:20:01,187 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:20:01,213 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:20:01,245 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:20:01,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01 WrapperNode [2018-09-20 15:20:01,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:20:01,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:20:01,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:20:01,298 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:20:01,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... [2018-09-20 15:20:01,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:20:01,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:20:01,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:20:01,406 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:20:01,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:20:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:20:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:20:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:20:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-20 15:20:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:20:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:20:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:20:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:20:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-20 15:20:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:20:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:20:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:20:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:20:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:20:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:20:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:20:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:20:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:20:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:20:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:20:01,871 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:01,893 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,088 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,099 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,228 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,239 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:11,797 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:20:11,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:11 BoogieIcfgContainer [2018-09-20 15:20:11,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:20:11,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:20:11,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:20:11,802 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:20:11,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:20:00" (1/3) ... [2018-09-20 15:20:11,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754d4307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:20:11, skipping insertion in model container [2018-09-20 15:20:11,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:20:01" (2/3) ... [2018-09-20 15:20:11,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754d4307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:20:11, skipping insertion in model container [2018-09-20 15:20:11,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:11" (3/3) ... [2018-09-20 15:20:11,806 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-09-20 15:20:11,816 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:20:11,825 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:20:11,869 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:20:11,870 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:20:11,871 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:20:11,871 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:20:11,871 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:20:11,871 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:20:11,872 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:20:11,872 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:20:11,872 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:20:11,894 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-09-20 15:20:11,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-20 15:20:11,901 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:11,902 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:20:11,905 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:11,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1023192564, now seen corresponding path program 1 times [2018-09-20 15:20:11,916 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:11,917 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:20:11,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:20:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:12,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:12,049 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:12,069 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:12,070 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:20:12,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:20:12,090 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:20:12,091 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:20:12,094 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2018-09-20 15:20:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:12,122 INFO L93 Difference]: Finished difference Result 162 states and 204 transitions. [2018-09-20 15:20:12,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:20:12,124 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-20 15:20:12,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:12,137 INFO L225 Difference]: With dead ends: 162 [2018-09-20 15:20:12,138 INFO L226 Difference]: Without dead ends: 81 [2018-09-20 15:20:12,142 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:20:12,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-20 15:20:12,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-20 15:20:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:20:12,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-09-20 15:20:12,192 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 16 [2018-09-20 15:20:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:12,193 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-09-20 15:20:12,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:20:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-09-20 15:20:12,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-20 15:20:12,195 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:12,195 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:20:12,196 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:12,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1392782034, now seen corresponding path program 1 times [2018-09-20 15:20:12,197 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:12,198 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:20:12,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:12,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:12,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:12,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:12,553 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:12,584 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:12,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:12,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:12,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:12,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:12,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:12,726 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:12,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:12,729 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:13,092 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:13,107 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:13,108 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:13,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:13,111 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:13,111 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:13,111 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 9 states. [2018-09-20 15:20:14,289 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:20:24,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:24,796 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2018-09-20 15:20:24,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:20:24,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-09-20 15:20:24,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:24,802 INFO L225 Difference]: With dead ends: 92 [2018-09-20 15:20:24,802 INFO L226 Difference]: Without dead ends: 86 [2018-09-20 15:20:24,804 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:20:24,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-20 15:20:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2018-09-20 15:20:24,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:20:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2018-09-20 15:20:24,817 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 25 [2018-09-20 15:20:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:24,817 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2018-09-20 15:20:24,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2018-09-20 15:20:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-20 15:20:24,819 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:24,820 INFO L376 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, 1] [2018-09-20 15:20:24,820 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:24,820 INFO L82 PathProgramCache]: Analyzing trace with hash 917302346, now seen corresponding path program 1 times [2018-09-20 15:20:24,821 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:24,821 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:20:24,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:20:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:24,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:24,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:24,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:24,992 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:25,018 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:25,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:25,038 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:25,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:25,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:25,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:25,074 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:25,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:25,079 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:25,159 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:25,174 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:25,175 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:20:25,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:20:25,175 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:20:25,175 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:20:25,176 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 8 states. [2018-09-20 15:20:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:35,975 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2018-09-20 15:20:35,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 15:20:35,976 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-09-20 15:20:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:35,977 INFO L225 Difference]: With dead ends: 92 [2018-09-20 15:20:35,977 INFO L226 Difference]: Without dead ends: 86 [2018-09-20 15:20:35,978 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-20 15:20:35,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-20 15:20:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2018-09-20 15:20:35,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:20:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2018-09-20 15:20:35,988 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 27 [2018-09-20 15:20:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:35,988 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2018-09-20 15:20:35,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:20:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2018-09-20 15:20:35,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-20 15:20:35,990 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:35,990 INFO L376 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, 1, 1] [2018-09-20 15:20:35,991 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:35,991 INFO L82 PathProgramCache]: Analyzing trace with hash 187388975, now seen corresponding path program 1 times [2018-09-20 15:20:35,992 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:35,992 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:20:36,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:36,125 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:36,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:36,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:36,217 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:36,221 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:36,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:36,238 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:36,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:36,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:36,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:36,267 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:36,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:36,272 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:36,398 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:36,410 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:36,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:36,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:36,411 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:36,411 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:36,412 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 9 states. [2018-09-20 15:20:47,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:47,469 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2018-09-20 15:20:47,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:20:47,472 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-20 15:20:47,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:47,474 INFO L225 Difference]: With dead ends: 92 [2018-09-20 15:20:47,474 INFO L226 Difference]: Without dead ends: 84 [2018-09-20 15:20:47,475 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:20:47,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-09-20 15:20:47,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2018-09-20 15:20:47,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-20 15:20:47,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-09-20 15:20:47,483 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 28 [2018-09-20 15:20:47,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:47,483 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-09-20 15:20:47,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:47,484 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-09-20 15:20:47,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:20:47,485 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:47,485 INFO L376 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, 1, 1, 1, 1, 1] [2018-09-20 15:20:47,486 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:47,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1351490406, now seen corresponding path program 1 times [2018-09-20 15:20:47,487 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:47,487 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:20:47,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:47,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:48,434 WARN L178 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:20:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:48,629 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:48,641 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:48,641 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:20:48,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:20:48,642 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:20:48,642 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:20:48,643 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 8 states. [2018-09-20 15:21:00,483 WARN L178 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:21:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:07,471 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2018-09-20 15:21:07,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-20 15:21:07,478 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-09-20 15:21:07,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:21:07,480 INFO L225 Difference]: With dead ends: 88 [2018-09-20 15:21:07,480 INFO L226 Difference]: Without dead ends: 82 [2018-09-20 15:21:07,481 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:21:07,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-09-20 15:21:07,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2018-09-20 15:21:07,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-20 15:21:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-09-20 15:21:07,490 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 31 [2018-09-20 15:21:07,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:21:07,491 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-09-20 15:21:07,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:21:07,491 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-09-20 15:21:07,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:21:07,493 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:21:07,493 INFO L376 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, 1, 1, 1, 1, 1, 1] [2018-09-20 15:21:07,493 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:21:07,493 INFO L82 PathProgramCache]: Analyzing trace with hash 469252322, now seen corresponding path program 1 times [2018-09-20 15:21:07,494 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:21:07,494 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:21:07,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:21:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:21:08,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:21:08,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:21:08,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:21:08,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,399 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,416 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:21:08,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:21:08,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:21:08,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:08,452 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:21:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:21:08,579 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:21:08,598 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:21:08,598 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:21:08,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:21:08,599 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:21:08,599 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:21:08,599 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 9 states. [2018-09-20 15:21:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:19,020 INFO L93 Difference]: Finished difference Result 133 states and 138 transitions. [2018-09-20 15:21:19,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:21:19,021 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-20 15:21:19,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:21:19,022 INFO L225 Difference]: With dead ends: 133 [2018-09-20 15:21:19,022 INFO L226 Difference]: Without dead ends: 80 [2018-09-20 15:21:19,024 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:21:19,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-20 15:21:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2018-09-20 15:21:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-20 15:21:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2018-09-20 15:21:19,031 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 32 [2018-09-20 15:21:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:21:19,031 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2018-09-20 15:21:19,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:21:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2018-09-20 15:21:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-20 15:21:19,033 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:21:19,033 INFO L376 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:21:19,034 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:21:19,034 INFO L82 PathProgramCache]: Analyzing trace with hash -985292319, now seen corresponding path program 1 times [2018-09-20 15:21:19,034 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:21:19,035 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 15:21:19,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:21:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:21:20,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:21:20,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:21:20,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:21:20,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:20,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:20,180 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:20,180 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:21:20,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:21:20,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:21:20,230 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:21:20,250 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:20,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:21:20,258 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:21:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:21:20,424 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:21:20,449 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:21:20,449 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:21:20,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:21:20,450 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:21:20,450 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:21:20,450 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 9 states. [2018-09-20 15:21:31,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:31,784 INFO L93 Difference]: Finished difference Result 130 states and 133 transitions. [2018-09-20 15:21:31,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:21:31,785 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-09-20 15:21:31,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:21:31,787 INFO L225 Difference]: With dead ends: 130 [2018-09-20 15:21:31,787 INFO L226 Difference]: Without dead ends: 77 [2018-09-20 15:21:31,788 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:21:31,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-20 15:21:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-20 15:21:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-20 15:21:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2018-09-20 15:21:31,795 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 33 [2018-09-20 15:21:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:21:31,795 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2018-09-20 15:21:31,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:21:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2018-09-20 15:21:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-20 15:21:31,798 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:21:31,798 INFO L376 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:21:31,798 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:21:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash 279197910, now seen corresponding path program 1 times [2018-09-20 15:21:31,798 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:21:31,799 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-20 15:21:31,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:21:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:21:32,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:21:34,242 WARN L178 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 15:21:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:21:34,250 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:21:34,279 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:21:34,280 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 15:21:34,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 15:21:34,280 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 15:21:34,280 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:21:34,281 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 6 states. [2018-09-20 15:21:40,875 WARN L178 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-20 15:21:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:47,688 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-09-20 15:21:47,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:21:47,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-09-20 15:21:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:21:47,690 INFO L225 Difference]: With dead ends: 83 [2018-09-20 15:21:47,690 INFO L226 Difference]: Without dead ends: 77 [2018-09-20 15:21:47,691 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:21:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-20 15:21:47,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-20 15:21:47,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-20 15:21:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-09-20 15:21:47,698 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 33 [2018-09-20 15:21:47,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:21:47,698 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-09-20 15:21:47,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 15:21:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-09-20 15:21:47,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-20 15:21:47,700 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:21:47,701 INFO L376 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, 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, 1, 1, 1] [2018-09-20 15:21:47,701 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:21:47,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1463637861, now seen corresponding path program 1 times [2018-09-20 15:21:47,701 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:21:47,702 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:21:47,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-20 15:21:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:21:48,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:21:49,805 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 15:21:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:21:49,823 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:21:49,842 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:21:49,842 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 15:21:49,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 15:21:49,843 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 15:21:49,843 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:21:49,843 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 6 states. [2018-09-20 15:21:55,549 WARN L178 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-20 15:21:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:21:59,985 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-09-20 15:22:00,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:22:00,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-09-20 15:22:00,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:22:00,077 INFO L225 Difference]: With dead ends: 77 [2018-09-20 15:22:00,077 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:22:00,078 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:22:00,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:22:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:22:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:22:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:22:00,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2018-09-20 15:22:00,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:22:00,079 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:22:00,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 15:22:00,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:22:00,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:22:00,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:22:01,088 WARN L178 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-09-20 15:22:01,782 WARN L178 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-09-20 15:22:01,784 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-09-20 15:22:01,784 INFO L426 ceAbstractionStarter]: For program point isnan_floatENTRY(line 13) no Hoare annotation was computed. [2018-09-20 15:22:01,784 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-09-20 15:22:01,784 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-20 15:22:01,784 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L85-3(line 85) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L44-2(line 44) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L102-2(lines 95 108) no Hoare annotation was computed. [2018-09-20 15:22:01,785 INFO L426 ceAbstractionStarter]: For program point L102-3(lines 102 106) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L103-1(line 103) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L103-2(line 103) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-09-20 15:22:01,786 INFO L426 ceAbstractionStarter]: For program point L103-3(line 103) no Hoare annotation was computed. [2018-09-20 15:22:01,787 INFO L426 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-09-20 15:22:01,787 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:22:01,788 INFO L426 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-09-20 15:22:01,788 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-09-20 15:22:01,788 INFO L426 ceAbstractionStarter]: For program point L104(line 104) no Hoare annotation was computed. [2018-09-20 15:22:01,788 INFO L426 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-09-20 15:22:01,788 INFO L429 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-09-20 15:22:01,788 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-09-20 15:22:01,788 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-09-20 15:22:01,788 INFO L426 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L105-1(line 105) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L422 ceAbstractionStarter]: At program point L97-3(lines 97 101) the Hoare annotation is: (or (not (= ~huge_exp~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)))) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)) ~one_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|) (not (bvult (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv830472192 32)))))) [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L89-2(lines 82 95) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L89-3(lines 89 93) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L98(line 98) no Hoare annotation was computed. [2018-09-20 15:22:01,789 INFO L426 ceAbstractionStarter]: For program point L98-1(line 98) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L98-2(line 98) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L98-3(line 98) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L90-1(line 90) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L90-2(line 90) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L90-3(line 90) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-09-20 15:22:01,790 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-20 15:22:01,791 INFO L426 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-09-20 15:22:01,791 INFO L422 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: (or (not (= ~huge_exp~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)))) (= |__ieee754_expf_#in~x| __ieee754_expf_~x) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)) ~one_exp~0))) [2018-09-20 15:22:01,791 INFO L426 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2018-09-20 15:22:01,791 INFO L426 ceAbstractionStarter]: For program point L99(line 99) no Hoare annotation was computed. [2018-09-20 15:22:01,791 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L42(line 42) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L42-1(line 42) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L42-2(line 42) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L42-3(line 42) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L100-1(line 100) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L100-2(line 100) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L92(line 92) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-09-20 15:22:01,792 INFO L426 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-09-20 15:22:01,793 INFO L426 ceAbstractionStarter]: For program point L92-2(line 92) no Hoare annotation was computed. [2018-09-20 15:22:01,793 INFO L426 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-09-20 15:22:01,793 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-09-20 15:22:01,793 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-09-20 15:22:01,793 INFO L422 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (or (not (= ~huge_exp~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)))) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)) ~one_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|) (not (bvult (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv830472192 32)))))) [2018-09-20 15:22:01,793 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-20 15:22:01,793 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:22:01,794 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:22:01,794 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:22:01,794 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:22:01,794 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)) ~one_exp~0) (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_exp~0)) [2018-09-20 15:22:01,794 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:22:01,794 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:22:01,795 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 111 127) the Hoare annotation is: true [2018-09-20 15:22:01,795 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 111 127) no Hoare annotation was computed. [2018-09-20 15:22:01,795 INFO L426 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-09-20 15:22:01,795 INFO L426 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2018-09-20 15:22:01,795 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-09-20 15:22:01,795 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 111 127) no Hoare annotation was computed. [2018-09-20 15:22:01,796 INFO L422 ceAbstractionStarter]: At program point L118(line 118) the Hoare annotation is: (or (not (= ~huge_exp~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)))) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)) ~one_exp~0)) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-09-20 15:22:01,796 INFO L426 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2018-09-20 15:22:01,806 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,806 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,807 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,807 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,807 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,807 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,807 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,808 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,813 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,813 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,814 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,814 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,814 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,814 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,815 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,815 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,818 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,819 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,819 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,819 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,820 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,820 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,820 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,822 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,824 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,824 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,824 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,824 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,824 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,825 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,825 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,825 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,828 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,828 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,828 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,829 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,829 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,829 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,829 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,829 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:22:01 BoogieIcfgContainer [2018-09-20 15:22:01,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:22:01,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:22:01,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:22:01,839 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:22:01,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:11" (3/4) ... [2018-09-20 15:22:01,845 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:22:01,852 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:22:01,852 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-09-20 15:22:01,852 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:22:01,853 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:22:01,859 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-09-20 15:22:01,859 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-09-20 15:22:01,860 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:22:01,889 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(huge_exp == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) || \old(x) == x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)) == one_exp) [2018-09-20 15:22:01,890 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(huge_exp == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)) == one_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x) && !~bvult32(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 830472192bv32)) [2018-09-20 15:22:01,890 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(huge_exp == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)) == one_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x) && !~bvult32(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 830472192bv32)) [2018-09-20 15:22:01,971 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:22:01,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:22:01,973 INFO L168 Benchmark]: Toolchain (without parser) took 121115.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -79.5 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:01,974 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:22:01,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.72 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:01,974 INFO L168 Benchmark]: Boogie Preprocessor took 108.37 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:22:01,975 INFO L168 Benchmark]: RCFGBuilder took 10392.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:01,975 INFO L168 Benchmark]: TraceAbstraction took 110038.49 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.1 MB). Peak memory consumption was 139.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:01,976 INFO L168 Benchmark]: Witness Printer took 133.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:01,980 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 435.72 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 108.37 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 10392.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 110038.49 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.1 MB). Peak memory consumption was 139.8 MB. Max. memory is 11.5 GB. * Witness Printer took 133.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant [2018-09-20 15:22:01,996 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,996 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,996 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,996 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,996 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,996 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,997 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,997 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,998 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,998 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,998 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,998 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,998 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,998 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,998 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:01,999 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(huge_exp == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)) == one_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x) && !~bvult32(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 830472192bv32)) - InvariantResult [Line: 41]: Loop Invariant [2018-09-20 15:22:01,999 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:01,999 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,000 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,000 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,000 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,000 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,004 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,004 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: (!(huge_exp == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) || \old(x) == x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)) == one_exp) - InvariantResult [Line: 84]: Loop Invariant [2018-09-20 15:22:02,004 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,005 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,005 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,005 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,005 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:02,005 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:02,005 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:02,005 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:02,006 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,006 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,009 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,009 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:22:02,010 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:02,010 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:02,010 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-20 15:22:02,010 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(huge_exp == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)) == one_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x) && !~bvult32(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 830472192bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. SAFE Result, 109.9s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 97.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 654 SDtfs, 510 SDslu, 2748 SDs, 0 SdLazy, 638 SolverSat, 13 SolverUnsat, 31 SolverUnknown, 0 SolverNotchecked, 89.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 313 GetRequests, 220 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred 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, 9 MinimizatonAttempts, 19 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 16 NumberOfFragments, 128 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 168 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 271 ConstructedInterpolants, 32 QuantifiedInterpolants, 109861 SizeOfPredicates, 51 NumberOfNonLiveVariables, 896 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...