/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0831_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_0831_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 14218179970cdda4c2f749c75b7f78aa74dcc86b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0831_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 14218179970cdda4c2f749c75b7f78aa74dcc86b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: unknown symbol ((_ fp.to_sbv 32) RoundingMode (_ FloatingPoint 8 24) (_ BitVec 32)) --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:19:44,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:44,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:44,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:44,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:44,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:44,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:44,678 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:44,681 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:44,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:44,689 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:44,690 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:44,693 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:44,694 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:44,695 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:44,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:44,701 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:44,705 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:44,710 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:44,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:44,715 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:44,717 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:44,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:44,723 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:44,723 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:44,726 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:44,727 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:44,728 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:44,730 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:44,734 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:44,734 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:44,735 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:44,735 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:44,735 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:44,736 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:44,739 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:44,740 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:19:44,767 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:44,768 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:44,769 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:44,769 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:44,772 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:44,773 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:44,773 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:44,773 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:44,773 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:44,773 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:19:44,774 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:44,774 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:44,774 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:44,774 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:44,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:44,775 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:44,776 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:44,776 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:44,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:44,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:44,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:44,777 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:44,777 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:44,777 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:44,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:44,777 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:44,779 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:19:44,779 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:44,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:19:44,779 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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2018-09-20 15:19:44,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:44,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:44,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:44,878 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:44,879 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:44,879 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-09-20 15:19:45,234 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05574b0a1/148b728a70d94b0f87e16af8fbe068c2/FLAGdeb96be73 [2018-09-20 15:19:45,414 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:45,415 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-09-20 15:19:45,424 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05574b0a1/148b728a70d94b0f87e16af8fbe068c2/FLAGdeb96be73 [2018-09-20 15:19:45,443 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05574b0a1/148b728a70d94b0f87e16af8fbe068c2 [2018-09-20 15:19:45,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:45,453 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:45,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:45,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:45,461 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:45,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40eeeb7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45, skipping insertion in model container [2018-09-20 15:19:45,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,479 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:45,783 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:45,804 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:45,851 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:45,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45 WrapperNode [2018-09-20 15:19:45,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:45,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:45,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:45,902 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:45,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:45,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:45,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:45,956 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:45,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (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 15:19:46,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:19:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-20 15:19:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:19:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-20 15:19:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:19:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:19:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:19:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:19:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:19:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:19:46,895 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:46,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:46 BoogieIcfgContainer [2018-09-20 15:19:46,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:46,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:46,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:46,901 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:46,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:45" (1/3) ... [2018-09-20 15:19:46,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638d827e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:46, skipping insertion in model container [2018-09-20 15:19:46,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (2/3) ... [2018-09-20 15:19:46,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638d827e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:46, skipping insertion in model container [2018-09-20 15:19:46,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:46" (3/3) ... [2018-09-20 15:19:46,905 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831_true-unreach-call.c [2018-09-20 15:19:46,913 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:46,921 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:46,967 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:46,968 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:46,968 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:46,968 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:46,968 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:46,968 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:46,969 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:46,969 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:46,969 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-09-20 15:19:47,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:19:47,001 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:47,002 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] [2018-09-20 15:19:47,004 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:47,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2012617380, now seen corresponding path program 1 times [2018-09-20 15:19:47,012 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:47,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:47,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:47,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:47,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:47,191 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 15:19:47,194 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:47,194 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:47,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:47,222 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:47,223 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:47,226 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2018-09-20 15:19:47,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:47,265 INFO L93 Difference]: Finished difference Result 172 states and 214 transitions. [2018-09-20 15:19:47,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:47,268 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:19:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:47,282 INFO L225 Difference]: With dead ends: 172 [2018-09-20 15:19:47,282 INFO L226 Difference]: Without dead ends: 86 [2018-09-20 15:19:47,286 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 15:19:47,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-20 15:19:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-09-20 15:19:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-09-20 15:19:47,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2018-09-20 15:19:47,331 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 21 [2018-09-20 15:19:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:47,331 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2018-09-20 15:19:47,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2018-09-20 15:19:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:19:47,333 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:47,333 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] [2018-09-20 15:19:47,334 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:47,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1520219498, now seen corresponding path program 1 times [2018-09-20 15:19:47,334 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:47,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:47,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:47,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:47,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:47,494 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:19:47,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:19:47 BoogieIcfgContainer [2018-09-20 15:19:47,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:19:47,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:19:47,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:19:47,562 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:19:47,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:46" (3/4) ... [2018-09-20 15:19:47,567 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:19:47,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:19:47,569 INFO L168 Benchmark]: Toolchain (without parser) took 2119.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:47,571 INFO L168 Benchmark]: CDTParser took 0.20 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 15:19:47,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:47,573 INFO L168 Benchmark]: Boogie Preprocessor took 52.89 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:19:47,573 INFO L168 Benchmark]: RCFGBuilder took 941.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:47,574 INFO L168 Benchmark]: TraceAbstraction took 663.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:47,575 INFO L168 Benchmark]: Witness Printer took 5.86 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 15:19:47,580 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 447.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.89 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 941.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 663.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.86 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: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, 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] [L116] float x = 0.0f / 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] [L117] 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] [L117] 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] [L117] float res = __ieee754_expf(x); [L120] CALL, EXPR isnan_float(res) VAL [\old(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] [L13] RET return x != x; VAL [\old(x)=6442450950, \result=0, 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=6442450950] [L120] EXPR isnan_float(res) VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, isnan_float(res)=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450950, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450951] [L120] COND TRUE !isnan_float(res) [L121] __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, 90 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 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=90occurred 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, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 15:19:50,037 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:50,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:50,051 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:50,051 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:50,052 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:50,053 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:50,055 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:50,057 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:50,058 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:50,059 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:50,059 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:50,060 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:50,061 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:50,062 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:50,062 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:50,063 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:50,065 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:50,067 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:50,069 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:50,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:50,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:50,073 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:50,073 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:50,074 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:50,075 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:50,076 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:50,076 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:50,077 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:50,078 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:50,079 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:50,079 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:50,080 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:50,080 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:50,081 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:50,081 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:50,082 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:19:50,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:50,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:50,107 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:50,107 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:50,108 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:50,108 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:50,108 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:50,108 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:50,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:50,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:50,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:50,113 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:50,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:50,114 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:50,114 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:19:50,114 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:19:50,114 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:50,115 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:50,115 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:50,115 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:50,115 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:50,117 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:50,118 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:50,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:50,118 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:50,118 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:50,119 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:50,119 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:19:50,119 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:50,119 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:19:50,120 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:19:50,120 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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2018-09-20 15:19:50,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:50,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:50,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:50,224 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:50,225 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:50,225 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-09-20 15:19:50,613 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69fcf64d/f4132fe542af4816a79e2794d739ccf4/FLAGef005d05f [2018-09-20 15:19:50,785 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:50,786 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0831_true-unreach-call.c [2018-09-20 15:19:50,795 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69fcf64d/f4132fe542af4816a79e2794d739ccf4/FLAGef005d05f [2018-09-20 15:19:50,811 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69fcf64d/f4132fe542af4816a79e2794d739ccf4 [2018-09-20 15:19:50,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:50,818 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:50,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:50,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:50,827 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:50,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:50" (1/1) ... [2018-09-20 15:19:50,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278f1bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:50, skipping insertion in model container [2018-09-20 15:19:50,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:50" (1/1) ... [2018-09-20 15:19:50,843 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:51,154 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:51,186 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:51,247 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:51,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51 WrapperNode [2018-09-20 15:19:51,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:51,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:51,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:51,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:51,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (1/1) ... [2018-09-20 15:19:51,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (1/1) ... [2018-09-20 15:19:51,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (1/1) ... [2018-09-20 15:19:51,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (1/1) ... [2018-09-20 15:19:51,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (1/1) ... [2018-09-20 15:19:51,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (1/1) ... [2018-09-20 15:19:51,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (1/1) ... [2018-09-20 15:19:51,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:51,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:51,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:51,390 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:51,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (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 15:19:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:19:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-20 15:19:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:19:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-20 15:19:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:19:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:19:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:19:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:19:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:19:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:19:51,877 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:51,894 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:00,076 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:00,090 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:00,225 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:00,252 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:20:01,387 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:20:01,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:01 BoogieIcfgContainer [2018-09-20 15:20:01,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:20:01,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:20:01,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:20:01,392 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:20:01,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:50" (1/3) ... [2018-09-20 15:20:01,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6ca8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:20:01, skipping insertion in model container [2018-09-20 15:20:01,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:51" (2/3) ... [2018-09-20 15:20:01,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6ca8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:20:01, skipping insertion in model container [2018-09-20 15:20:01,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:20:01" (3/3) ... [2018-09-20 15:20:01,396 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831_true-unreach-call.c [2018-09-20 15:20:01,403 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:20:01,411 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:20:01,459 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:20:01,460 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:20:01,460 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:20:01,461 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:20:01,461 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:20:01,461 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:20:01,461 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:20:01,461 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:20:01,461 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:20:01,483 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-09-20 15:20:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-20 15:20:01,491 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:01,492 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] [2018-09-20 15:20:01,495 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:01,501 INFO L82 PathProgramCache]: Analyzing trace with hash 907118703, now seen corresponding path program 1 times [2018-09-20 15:20:01,506 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:01,507 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) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:20:01,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:01,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:01,643 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 15:20:01,643 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:01,662 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:01,662 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:20:01,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:20:01,683 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:20:01,683 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:20:01,686 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-09-20 15:20:01,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:01,720 INFO L93 Difference]: Finished difference Result 170 states and 212 transitions. [2018-09-20 15:20:01,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:20:01,721 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-20 15:20:01,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:01,736 INFO L225 Difference]: With dead ends: 170 [2018-09-20 15:20:01,736 INFO L226 Difference]: Without dead ends: 85 [2018-09-20 15:20:01,741 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 15:20:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-20 15:20:01,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-20 15:20:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-20 15:20:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2018-09-20 15:20:01,791 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 20 [2018-09-20 15:20:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:01,792 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2018-09-20 15:20:01,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:20:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2018-09-20 15:20:01,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-20 15:20:01,794 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:01,794 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] [2018-09-20 15:20:01,795 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:01,795 INFO L82 PathProgramCache]: Analyzing trace with hash 2013527473, now seen corresponding path program 1 times [2018-09-20 15:20:01,796 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:01,796 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 15:20:01,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:01,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:02,635 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-20 15:20:02,746 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 15:20:02,746 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:02,759 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:02,760 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:02,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:02,762 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:02,762 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:02,763 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand 9 states. [2018-09-20 15:20:03,492 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:20:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:17,158 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2018-09-20 15:20:17,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:20:17,164 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-09-20 15:20:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:17,168 INFO L225 Difference]: With dead ends: 96 [2018-09-20 15:20:17,168 INFO L226 Difference]: Without dead ends: 89 [2018-09-20 15:20:17,170 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:20:17,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-09-20 15:20:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2018-09-20 15:20:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-20 15:20:17,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2018-09-20 15:20:17,184 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 29 [2018-09-20 15:20:17,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:17,185 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2018-09-20 15:20:17,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2018-09-20 15:20:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:20:17,186 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:17,187 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 15:20:17,187 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:17,187 INFO L82 PathProgramCache]: Analyzing trace with hash -272013875, now seen corresponding path program 1 times [2018-09-20 15:20:17,188 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:17,188 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) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:20:17,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:17,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:17,411 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 15:20:17,416 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 15:20:17,417 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:17,424 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:17,447 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 15:20:17,447 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:17,505 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 15:20:17,511 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 15:20:17,511 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:17,517 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:17,521 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 15:20:17,521 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:17,820 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 15:20:17,821 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:17,836 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:17,836 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 15:20:17,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 15:20:17,837 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 15:20:17,837 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:20:17,839 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 11 states. [2018-09-20 15:20:30,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:30,465 INFO L93 Difference]: Finished difference Result 102 states and 110 transitions. [2018-09-20 15:20:30,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:20:30,466 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-09-20 15:20:30,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:30,468 INFO L225 Difference]: With dead ends: 102 [2018-09-20 15:20:30,468 INFO L226 Difference]: Without dead ends: 86 [2018-09-20 15:20:30,470 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:20:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-20 15:20:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2018-09-20 15:20:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-09-20 15:20:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2018-09-20 15:20:30,479 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 31 [2018-09-20 15:20:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:30,480 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2018-09-20 15:20:30,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 15:20:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2018-09-20 15:20:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-20 15:20:30,483 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:30,483 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] [2018-09-20 15:20:30,483 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:30,484 INFO L82 PathProgramCache]: Analyzing trace with hash 387576925, now seen corresponding path program 1 times [2018-09-20 15:20:30,484 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:30,485 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 15:20:30,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:31,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:31,406 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 15:20:31,410 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 15:20:31,411 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:31,415 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:31,430 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 15:20:31,431 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:31,460 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 15:20:31,465 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 15:20:31,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:31,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:31,472 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 15:20:31,473 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:31,622 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 15:20:31,623 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:31,644 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:31,644 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:31,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:31,645 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:31,645 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:31,645 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand 9 states. [2018-09-20 15:20:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:46,435 INFO L93 Difference]: Finished difference Result 140 states and 145 transitions. [2018-09-20 15:20:46,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:20:46,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-09-20 15:20:46,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:46,438 INFO L225 Difference]: With dead ends: 140 [2018-09-20 15:20:46,438 INFO L226 Difference]: Without dead ends: 83 [2018-09-20 15:20:46,439 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 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 15:20:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-09-20 15:20:46,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2018-09-20 15:20:46,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:20:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions. [2018-09-20 15:20:46,448 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 36 [2018-09-20 15:20:46,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:46,448 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions. [2018-09-20 15:20:46,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2018-09-20 15:20:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-20 15:20:46,450 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:46,450 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] [2018-09-20 15:20:46,450 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:46,451 INFO L82 PathProgramCache]: Analyzing trace with hash -2066044958, now seen corresponding path program 1 times [2018-09-20 15:20:46,451 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:46,451 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 15:20:46,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:47,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:47,360 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 15:20:47,368 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 15:20:47,369 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:47,374 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:47,384 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 15:20:47,385 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:47,405 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 15:20:47,414 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 15:20:47,415 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:47,418 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:47,421 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 15:20:47,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:47,556 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 15:20:47,556 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:47,577 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:47,577 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:47,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:47,578 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:47,578 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:47,579 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand 9 states. [2018-09-20 15:20:57,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:57,396 INFO L93 Difference]: Finished difference Result 137 states and 140 transitions. [2018-09-20 15:20:57,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:20:57,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-09-20 15:20:57,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:57,398 INFO L225 Difference]: With dead ends: 137 [2018-09-20 15:20:57,399 INFO L226 Difference]: Without dead ends: 81 [2018-09-20 15:20:57,400 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 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 15:20:57,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-20 15:20:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-20 15:20:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:20:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2018-09-20 15:20:57,406 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 37 [2018-09-20 15:20:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:57,407 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2018-09-20 15:20:57,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2018-09-20 15:20:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-20 15:20:57,408 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:57,408 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] [2018-09-20 15:20:57,409 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:57,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1642116324, now seen corresponding path program 1 times [2018-09-20 15:20:57,409 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:57,410 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 15:20:57,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:58,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:21:02,359 WARN L178 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:21:10,543 WARN L178 SmtUtils]: Spent 2.33 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:21:12,640 WARN L797 $PredicateComparison]: unable to prove that (exists ((__ieee754_expf_~c~0 (_ FloatingPoint 8 24)) (__ieee754_expf_~t~0 (_ FloatingPoint 8 24)) (__ieee754_expf_~lo~0 (_ FloatingPoint 8 24))) (= (fp.sub RNE c_~one_exp~0 (let ((.cse0 (fp.sub RNE (fp.sub RNE |c___ieee754_expf_#in~x| (fp.mul RNE __ieee754_expf_~t~0 (select c_~ln2HI_exp~0 (_ bv0 32)))) __ieee754_expf_~lo~0))) (fp.sub RNE (fp.div RNE (fp.mul RNE .cse0 __ieee754_expf_~c~0) (fp.sub RNE __ieee754_expf_~c~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)))) .cse0))) |c___ieee754_expf_#res|)) is different from false [2018-09-20 15:21:14,714 WARN L819 $PredicateComparison]: unable to prove that (exists ((__ieee754_expf_~c~0 (_ FloatingPoint 8 24)) (__ieee754_expf_~t~0 (_ FloatingPoint 8 24)) (__ieee754_expf_~lo~0 (_ FloatingPoint 8 24))) (= (fp.sub RNE c_~one_exp~0 (let ((.cse0 (fp.sub RNE (fp.sub RNE |c___ieee754_expf_#in~x| (fp.mul RNE __ieee754_expf_~t~0 (select c_~ln2HI_exp~0 (_ bv0 32)))) __ieee754_expf_~lo~0))) (fp.sub RNE (fp.div RNE (fp.mul RNE .cse0 __ieee754_expf_~c~0) (fp.sub RNE __ieee754_expf_~c~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)))) .cse0))) |c___ieee754_expf_#res|)) is different from true [2018-09-20 15:21:15,347 INFO L303 Elim1Store]: Index analysis took 629 ms [2018-09-20 15:21:15,348 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-09-20 15:21:15,349 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:21:16,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-09-20 15:21:16,920 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:50, output treesize:46 [2018-09-20 15:21:22,700 WARN L178 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-20 15:21:31,685 WARN L178 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-20 15:21:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:21:38,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:21:38,961 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:21:38,962 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 15:21:38,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 15:21:38,962 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 15:21:38,962 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=69, Unknown=6, NotChecked=16, Total=110 [2018-09-20 15:21:38,963 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 11 states. [2018-09-20 15:22:02,897 WARN L178 SmtUtils]: Spent 6.92 s on a formula simplification that was a NOOP. DAG size: 17 [2018-09-20 15:22:23,051 WARN L178 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-20 15:22:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:22:26,481 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2018-09-20 15:22:26,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:22:26,482 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-09-20 15:22:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:22:26,483 INFO L225 Difference]: With dead ends: 88 [2018-09-20 15:22:26,483 INFO L226 Difference]: Without dead ends: 81 [2018-09-20 15:22:26,486 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 59.2s TimeCoverageRelationStatistics Valid=27, Invalid=101, Unknown=8, NotChecked=20, Total=156 [2018-09-20 15:22:26,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-20 15:22:26,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-20 15:22:26,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-20 15:22:26,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-09-20 15:22:26,495 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 37 [2018-09-20 15:22:26,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:22:26,496 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-09-20 15:22:26,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 15:22:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-09-20 15:22:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-20 15:22:26,498 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:22:26,501 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, 1, 1, 1, 1] [2018-09-20 15:22:26,502 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:22:26,502 INFO L82 PathProgramCache]: Analyzing trace with hash 654451945, now seen corresponding path program 1 times [2018-09-20 15:22:26,503 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:22:26,503 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 15:22:26,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:22:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:22:27,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:22:29,829 WARN L797 $PredicateComparison]: unable to prove that (exists ((__ieee754_expf_~xsb~0 (_ BitVec 32))) (= c___ieee754_expf_~k~0 ((_ fp.to_sbv 32) RTZ (fp.add RNE (fp.mul RNE c_~invln2_exp~0 |c___ieee754_expf_#in~x|) (select c_~halF_exp~0 __ieee754_expf_~xsb~0))))) is different from false [2018-09-20 15:22:33,907 WARN L178 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-20 15:22:33,951 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 15:22:33,951 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:22:33,975 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:22:33,976 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-20 15:22:33,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 15:22:33,976 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 15:22:33,977 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-09-20 15:22:33,977 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 6 states. [2018-09-20 15:22:41,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:22:41,361 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-09-20 15:22:41,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-20 15:22:41,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2018-09-20 15:22:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:22:41,386 INFO L225 Difference]: With dead ends: 81 [2018-09-20 15:22:41,386 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:22:41,387 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-09-20 15:22:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:22:41,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:22:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:22:41,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:22:41,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2018-09-20 15:22:41,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:22:41,389 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:22:41,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 15:22:41,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:22:41,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:22:41,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:22:43,435 WARN L178 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 37 [2018-09-20 15:22:46,629 WARN L178 SmtUtils]: Spent 3.18 s on a formula simplification that was a NOOP. DAG size: 37 [2018-09-20 15:22:46,647 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-09-20 15:22:46,647 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-09-20 15:22:46,647 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-09-20 15:22:46,647 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-20 15:22:46,648 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-20 15:22:46,648 INFO L426 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-09-20 15:22:46,648 INFO L426 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-09-20 15:22:46,648 INFO L426 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-09-20 15:22:46,648 INFO L426 ceAbstractionStarter]: For program point L85-3(line 85) no Hoare annotation was computed. [2018-09-20 15:22:46,648 INFO L426 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L44-2(line 44) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L102-2(lines 95 108) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L102-3(lines 102 106) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-09-20 15:22:46,649 INFO L426 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L103-1(line 103) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L103-2(line 103) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L103-3(line 103) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-09-20 15:22:46,650 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:22:46,651 INFO L426 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-09-20 15:22:46,651 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-09-20 15:22:46,651 INFO L426 ceAbstractionStarter]: For program point L104(line 104) no Hoare annotation was computed. [2018-09-20 15:22:46,651 INFO L426 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-09-20 15:22:46,651 INFO L429 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-09-20 15:22:46,651 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-09-20 15:22:46,651 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-09-20 15:22:46,651 INFO L426 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-09-20 15:22:46,652 INFO L426 ceAbstractionStarter]: For program point L105-1(line 105) no Hoare annotation was computed. [2018-09-20 15:22:46,652 INFO L426 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-09-20 15:22:46,652 INFO L426 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-09-20 15:22:46,652 INFO L422 ceAbstractionStarter]: At program point L97-3(lines 97 101) the Hoare annotation is: (or (exists ((__ieee754_expf_~xsb~0 (_ BitVec 32))) (not (= ((_ fp.to_sbv 32) RTZ (fp.add RNE (fp.mul RNE ~invln2_exp~0 |__ieee754_expf_#in~x|) (select ~halF_exp~0 __ieee754_expf_~xsb~0))) (_ bv0 32)))) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvugt (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv1051816472 32))) (= (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|))) (and (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv1065686418 32)) (= (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|))) (= (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|) (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|) (= (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) __ieee754_expf_~hx~0))))) [2018-09-20 15:22:46,652 INFO L426 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-09-20 15:22:46,652 INFO L426 ceAbstractionStarter]: For program point L89-2(lines 82 95) no Hoare annotation was computed. [2018-09-20 15:22:46,652 INFO L426 ceAbstractionStarter]: For program point L89-3(lines 89 93) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L98(line 98) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L98-1(line 98) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L98-2(line 98) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L98-3(line 98) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L90-1(line 90) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L90-2(line 90) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L90-3(line 90) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-09-20 15:22:46,653 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-20 15:22:46,654 INFO L426 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-09-20 15:22:46,654 INFO L422 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-09-20 15:22:46,654 INFO L426 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2018-09-20 15:22:46,654 INFO L426 ceAbstractionStarter]: For program point L99(line 99) no Hoare annotation was computed. [2018-09-20 15:22:46,654 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-20 15:22:46,654 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-09-20 15:22:46,654 INFO L426 ceAbstractionStarter]: For program point L42(line 42) no Hoare annotation was computed. [2018-09-20 15:22:46,654 INFO L426 ceAbstractionStarter]: For program point L42-1(line 42) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L42-2(line 42) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L42-3(line 42) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L100-1(line 100) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L100-2(line 100) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L92(line 92) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L92-2(line 92) no Hoare annotation was computed. [2018-09-20 15:22:46,655 INFO L426 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-09-20 15:22:46,656 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-09-20 15:22:46,656 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-09-20 15:22:46,656 INFO L422 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (or (exists ((__ieee754_expf_~xsb~0 (_ BitVec 32))) (not (= ((_ fp.to_sbv 32) RTZ (fp.add RNE (fp.mul RNE ~invln2_exp~0 |__ieee754_expf_#in~x|) (select ~halF_exp~0 __ieee754_expf_~xsb~0))) (_ bv0 32)))) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvugt (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv1051816472 32))) (= (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|))) (and (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv1065686418 32)) (= (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|))) (= (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|) (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|) (= (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) __ieee754_expf_~hx~0))))) [2018-09-20 15:22:46,656 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-20 15:22:46,656 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:22:46,656 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:22:46,656 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:22:46,657 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:22:46,657 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:22:46,657 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:22:46,657 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:22:46,657 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 111 126) the Hoare annotation is: true [2018-09-20 15:22:46,657 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 111 126) no Hoare annotation was computed. [2018-09-20 15:22:46,657 INFO L426 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-09-20 15:22:46,657 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-09-20 15:22:46,657 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 111 126) no Hoare annotation was computed. [2018-09-20 15:22:46,658 INFO L422 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:22:46,658 INFO L426 ceAbstractionStarter]: For program point L120-1(lines 120 123) no Hoare annotation was computed. [2018-09-20 15:22:46,658 INFO L422 ceAbstractionStarter]: At program point L117(line 117) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:22:46,658 INFO L426 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-09-20 15:22:46,662 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol ((_ fp.to_sbv 32) RoundingMode (_ FloatingPoint 8 24) (_ BitVec 32)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:539) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:234) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:128) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:164) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:128) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:164) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:128) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:434) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:134) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:164) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:128) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:356) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:532) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:195) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-20 15:22:46,665 INFO L168 Benchmark]: Toolchain (without parser) took 175849.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -142.6 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:46,666 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 15:22:46,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.93 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 15:22:46,667 INFO L168 Benchmark]: Boogie Preprocessor took 82.73 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 15:22:46,668 INFO L168 Benchmark]: RCFGBuilder took 9998.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:46,668 INFO L168 Benchmark]: TraceAbstraction took 165274.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.0 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:22:46,673 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 486.93 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 82.73 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 9998.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 165274.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.0 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol ((_ fp.to_sbv 32) RoundingMode (_ FloatingPoint 8 24) (_ BitVec 32)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol ((_ fp.to_sbv 32) RoundingMode (_ FloatingPoint 8 24) (_ BitVec 32)): de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:539) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...