/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1010_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/double_req_bl_1010_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 b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 ......................................................................................................................................................................................................................................................................................................... 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/double_req_bl_1010_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 b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 ..................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:01:15,018 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:15,023 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:15,037 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:01:15,037 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:01:15,039 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:01:15,040 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:01:15,042 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:01:15,044 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:01:15,045 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:01:15,045 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:01:15,046 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:15,047 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:15,048 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:15,049 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:15,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:15,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:15,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:15,057 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:15,060 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:15,066 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:15,067 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:15,073 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:15,075 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:15,076 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:15,077 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:15,078 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:15,082 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:15,083 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:15,088 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:15,088 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:15,091 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:15,091 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:15,091 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:15,092 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:15,093 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:15,095 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:01:15,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:15,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:15,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:15,130 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:15,131 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:15,131 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:15,133 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:15,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:15,133 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:15,133 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:01:15,133 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:15,134 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:15,134 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:15,134 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:15,134 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:15,136 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:15,136 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:15,136 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:15,136 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:15,137 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:15,137 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:15,137 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:15,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:15,140 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:15,140 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:15,140 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:15,141 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:01:15,141 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:15,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:01:15,141 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 -> b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 [2018-09-20 15:01:15,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:15,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:15,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:15,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:15,232 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:15,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-20 15:01:15,591 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076a1b77f/2488658f583c48438c5fd7b2d780f978/FLAG9f2bf1940 [2018-09-20 15:01:15,741 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:15,742 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-20 15:01:15,749 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076a1b77f/2488658f583c48438c5fd7b2d780f978/FLAG9f2bf1940 [2018-09-20 15:01:15,765 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076a1b77f/2488658f583c48438c5fd7b2d780f978 [2018-09-20 15:01:15,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:15,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:15,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:15,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:15,783 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:15,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:15" (1/1) ... [2018-09-20 15:01:15,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5188480f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:15, skipping insertion in model container [2018-09-20 15:01:15,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:15" (1/1) ... [2018-09-20 15:01:15,800 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:16,001 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:16,019 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:16,035 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:16,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16 WrapperNode [2018-09-20 15:01:16,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:16,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:16,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:16,063 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:16,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (1/1) ... [2018-09-20 15:01:16,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (1/1) ... [2018-09-20 15:01:16,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (1/1) ... [2018-09-20 15:01:16,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (1/1) ... [2018-09-20 15:01:16,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (1/1) ... [2018-09-20 15:01:16,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (1/1) ... [2018-09-20 15:01:16,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (1/1) ... [2018-09-20 15:01:16,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:16,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:16,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:16,117 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:16,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (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 15:01:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:01:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 15:01:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:16,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:16,188 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:01:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:01:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:01:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 15:01:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:01:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:01:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:01:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:01:16,766 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:16,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:16 BoogieIcfgContainer [2018-09-20 15:01:16,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:16,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:16,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:16,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:15" (1/3) ... [2018-09-20 15:01:16,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23aa069a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:16, skipping insertion in model container [2018-09-20 15:01:16,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:16" (2/3) ... [2018-09-20 15:01:16,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23aa069a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:16, skipping insertion in model container [2018-09-20 15:01:16,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:16" (3/3) ... [2018-09-20 15:01:16,780 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1010_true-unreach-call.c [2018-09-20 15:01:16,791 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:16,803 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:16,857 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:16,858 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:16,858 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:16,858 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:16,858 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:16,858 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:16,858 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:16,859 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:16,859 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-09-20 15:01:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:01:16,886 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:16,887 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 15:01:16,891 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:16,896 INFO L82 PathProgramCache]: Analyzing trace with hash -815400355, now seen corresponding path program 1 times [2018-09-20 15:01:16,898 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:16,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:16,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:16,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:16,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:17,040 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 15:01:17,044 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:17,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:17,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:17,060 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:17,060 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:17,063 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-09-20 15:01:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:17,089 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2018-09-20 15:01:17,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:17,091 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:01:17,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:17,102 INFO L225 Difference]: With dead ends: 84 [2018-09-20 15:01:17,103 INFO L226 Difference]: Without dead ends: 42 [2018-09-20 15:01:17,107 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 15:01:17,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-20 15:01:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-09-20 15:01:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-09-20 15:01:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2018-09-20 15:01:17,148 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 21 [2018-09-20 15:01:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:17,149 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2018-09-20 15:01:17,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:17,149 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2018-09-20 15:01:17,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:01:17,151 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:17,151 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] [2018-09-20 15:01:17,152 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:17,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1951370110, now seen corresponding path program 1 times [2018-09-20 15:01:17,152 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:17,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:17,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:17,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:17,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:17,298 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:01:17,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:01:17 BoogieIcfgContainer [2018-09-20 15:01:17,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:01:17,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:01:17,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:01:17,338 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:01:17,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:16" (3/4) ... [2018-09-20 15:01:17,343 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:01:17,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:01:17,344 INFO L168 Benchmark]: Toolchain (without parser) took 1573.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -123.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:17,346 INFO L168 Benchmark]: CDTParser took 0.52 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 15:01:17,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.25 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:17,348 INFO L168 Benchmark]: Boogie Preprocessor took 50.93 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:17,348 INFO L168 Benchmark]: RCFGBuilder took 653.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:17,349 INFO L168 Benchmark]: TraceAbstraction took 568.33 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:17,350 INFO L168 Benchmark]: Witness Printer took 5.88 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 15:01:17,354 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 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 287.25 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.93 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 653.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 568.33 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.88 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: 55]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 50, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L50] double x = 0.0 / 0.0; [L51] CALL, EXPR fabs_double(x) VAL [\old(x)=12] [L29] __uint32_t high; VAL [\old(x)=12, x=12] [L31] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=12, gh_u={9:0}, x=12] [L32] FCALL gh_u.value = (x) VAL [\old(x)=12, gh_u={9:0}, x=12] [L33] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=12, gh_u={9:0}, gh_u.parts.msw=17, x=12] [L33] (high) = gh_u.parts.msw VAL [\old(x)=12, gh_u={9:0}, gh_u.parts.msw=17, high=17, x=12] [L33] FCALL (high) = gh_u.parts.msw VAL [(high) = gh_u.parts.msw=11, \old(x)=12, gh_u={9:0}, gh_u.parts.msw=17, high=17, x=12] [L34] COND FALSE !(0) VAL [\old(x)=12, high=17, x=12] [L36] FCALL ieee_double_shape_type sh_u; VAL [\old(x)=12, high=17, sh_u={15:0}, x=12] [L37] FCALL sh_u.value = (x) VAL [\old(x)=12, high=17, sh_u={15:0}, x=12] [L38] FCALL sh_u.parts.msw = (high & 0x7fffffff) VAL [\old(x)=12, high=17, sh_u={15:0}, x=12] [L39] EXPR, FCALL sh_u.value VAL [\old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L39] (x) = sh_u.value VAL [\old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=14, \old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=13, (x) = sh_u.value=14, \old(x)=12, high=17, sh_u={15:0}, sh_u.value=12, x=12] [L40] COND FALSE !(0) VAL [\old(x)=12, high=17, x=12] [L41] RET return x; VAL [\old(x)=12, \result=12, high=17, x=12] [L51] EXPR fabs_double(x) VAL [fabs_double(x)=12, x=12] [L51] double res = fabs_double(x); [L54] CALL, EXPR isnan_double(res) VAL [\old(x)=12] [L15] RET return x != x; VAL [\old(x)=12, \result=0, x=12] [L54] EXPR isnan_double(res) VAL [isnan_double(res)=0, res=12, x=12] [L54] COND TRUE !isnan_double(res) [L55] __VERIFIER_error() VAL [res=12, x=12] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 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=46occurred 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, 62 NumberOfCodeBlocks, 62 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 15:01:19,753 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:19,755 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:19,767 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:01:19,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:01:19,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:01:19,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:01:19,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:01:19,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:01:19,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:01:19,784 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:01:19,784 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:19,785 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:19,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:19,790 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:19,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:19,791 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:19,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:19,795 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:19,797 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:19,798 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:19,799 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:19,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:19,802 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:19,802 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:19,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:19,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:19,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:19,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:19,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:19,808 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:19,808 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:19,809 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:19,809 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:19,810 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:19,811 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:19,811 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:01:19,826 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:19,827 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:19,828 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:19,828 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:19,829 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:19,829 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:19,829 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:19,829 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:19,830 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:19,830 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:19,830 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:19,830 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:19,830 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:19,831 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:19,831 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:01:19,831 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:01:19,831 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:19,832 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:19,832 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:19,832 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:19,832 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:19,832 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:19,833 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:19,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:19,833 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:19,833 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:19,833 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:19,834 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:01:19,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:19,834 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:01:19,834 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:01:19,834 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 -> b96c44c6dbde860fb4c9866ab5dc760657d1c0c9 [2018-09-20 15:01:19,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:19,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:19,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:19,915 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:19,916 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:19,916 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-20 15:01:20,275 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9d75547e/ea79445c9e72491da9c061415d09e706/FLAGca45cf182 [2018-09-20 15:01:20,433 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:20,433 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1010_true-unreach-call.c [2018-09-20 15:01:20,440 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9d75547e/ea79445c9e72491da9c061415d09e706/FLAGca45cf182 [2018-09-20 15:01:20,457 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9d75547e/ea79445c9e72491da9c061415d09e706 [2018-09-20 15:01:20,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:20,464 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:20,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:20,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:20,472 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:20,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f92a36a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20, skipping insertion in model container [2018-09-20 15:01:20,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,489 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:20,748 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:20,776 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:20,806 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:20,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20 WrapperNode [2018-09-20 15:01:20,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:20,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:20,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:20,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:20,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (1/1) ... [2018-09-20 15:01:20,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:20,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:20,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:20,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:20,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (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 15:01:21,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:21,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:21,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:21,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:01:21,035 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 15:01:21,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:21,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:21,036 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:21,036 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:01:21,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:21,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:01:21,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:01:21,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:21,040 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 15:01:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:01:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:01:21,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:21,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:21,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:21,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:01:21,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:01:21,415 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:21,451 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:21,770 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:21,784 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:21,825 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:21,838 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:21,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:21 BoogieIcfgContainer [2018-09-20 15:01:21,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:21,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:21,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:21,844 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:21,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:20" (1/3) ... [2018-09-20 15:01:21,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18828fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:21, skipping insertion in model container [2018-09-20 15:01:21,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:20" (2/3) ... [2018-09-20 15:01:21,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18828fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:21, skipping insertion in model container [2018-09-20 15:01:21,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:21" (3/3) ... [2018-09-20 15:01:21,848 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1010_true-unreach-call.c [2018-09-20 15:01:21,859 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:21,869 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:21,925 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:21,926 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:21,926 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:21,927 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:21,927 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:21,927 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:21,927 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:21,927 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:21,927 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:21,949 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-09-20 15:01:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-20 15:01:21,957 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:21,958 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 15:01:21,961 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:21,967 INFO L82 PathProgramCache]: Analyzing trace with hash -907056411, now seen corresponding path program 1 times [2018-09-20 15:01:21,972 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:21,973 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:01:21,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:01:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:22,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:01:22,104 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 15:01:22,105 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:01:22,122 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:22,123 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:22,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:22,145 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:22,145 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:22,150 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-09-20 15:01:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:22,184 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2018-09-20 15:01:22,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:22,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-20 15:01:22,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:22,200 INFO L225 Difference]: With dead ends: 82 [2018-09-20 15:01:22,202 INFO L226 Difference]: Without dead ends: 41 [2018-09-20 15:01:22,208 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 15:01:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-09-20 15:01:22,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-09-20 15:01:22,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-20 15:01:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2018-09-20 15:01:22,267 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 20 [2018-09-20 15:01:22,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:22,268 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2018-09-20 15:01:22,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:22,270 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2018-09-20 15:01:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-20 15:01:22,272 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:22,272 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] [2018-09-20 15:01:22,273 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:22,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2108951456, now seen corresponding path program 1 times [2018-09-20 15:01:22,275 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:22,277 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 15:01:22,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:22,531 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:01:22,559 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,560 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,560 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,561 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,561 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,562 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,562 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,562 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,563 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,563 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,563 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,564 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,564 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,564 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,565 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,565 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:01:22 BoogieIcfgContainer [2018-09-20 15:01:22,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:01:22,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:01:22,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:01:22,576 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:01:22,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:21" (3/4) ... [2018-09-20 15:01:22,580 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 15:01:22,586 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,587 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,587 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,587 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,587 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,588 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,588 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,588 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,589 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,589 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,589 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,590 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,590 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,590 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,591 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,591 WARN L1243 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE [2018-09-20 15:01:22,647 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:01:22,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:01:22,654 INFO L168 Benchmark]: Toolchain (without parser) took 2192.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:22,658 INFO L168 Benchmark]: CDTParser took 0.19 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 15:01:22,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.17 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:22,659 INFO L168 Benchmark]: Boogie Preprocessor took 81.93 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:22,660 INFO L168 Benchmark]: RCFGBuilder took 889.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:22,661 INFO L168 Benchmark]: TraceAbstraction took 735.00 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: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:22,662 INFO L168 Benchmark]: Witness Printer took 75.91 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 15:01:22,666 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 398.17 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.93 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 889.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 735.00 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: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. * Witness Printer took 75.91 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~Plusoo~LONGDOUBLE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 55]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L50] double x = 0.0 / 0.0; VAL [x=NaN] [L51] CALL, EXPR fabs_double(x) VAL [\old(x)=NaN] [L29] __uint32_t high; VAL [\old(x)=NaN, x=NaN] [L31] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=NaN, gh_u={2:0}, x=NaN] [L32] FCALL gh_u.value = (x) VAL [\old(x)=NaN, gh_u={2:0}, x=NaN] [L33] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=NaN, gh_u={2:0}, gh_u.parts.msw=2146435072, x=NaN] [L33] (high) = gh_u.parts.msw VAL [\old(x)=NaN, gh_u={2:0}, gh_u.parts.msw=2146435072, high=2146435072, x=NaN] [L33] FCALL (high) = gh_u.parts.msw VAL [(high) = gh_u.parts.msw=NaN, \old(x)=NaN, gh_u={2:0}, gh_u.parts.msw=2146435072, high=2146435072, x=NaN] [L34] COND FALSE !(0) VAL [\old(x)=NaN, high=2146435072, x=NaN] [L36] FCALL ieee_double_shape_type sh_u; VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L37] FCALL sh_u.value = (x) VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L38] FCALL sh_u.parts.msw = (high & 0x7fffffff) VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L39] EXPR, FCALL sh_u.value VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}, x=NaN] [L39] (x) = sh_u.value VAL [\old(x)=NaN, high=2146435072, sh_u={3:0}] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=0, \old(x)=NaN, high=2146435072, sh_u={3:0}] [L39] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=262144, (x) = sh_u.value=0, \old(x)=NaN, high=2146435072, sh_u={3:0}] [L40] COND FALSE !(0) VAL [\old(x)=NaN, high=2146435072] [L41] RET return x; VAL [\old(x)=NaN, high=2146435072] [L51] EXPR fabs_double(x) VAL [x=NaN] [L51] double res = fabs_double(x); [L54] CALL, EXPR isnan_double(res) [L15] RET return x != x; VAL [\result=0] [L54] EXPR isnan_double(res) VAL [isnan_double(res)=0, x=NaN] [L54] COND TRUE !isnan_double(res) [L55] __VERIFIER_error() VAL [x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...