/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_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_1051_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 0fa375491f6ee23468a1ede5cb9608fff6035ced ........................................................................................................................................................................................................................................................................................................ 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_1051_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 0fa375491f6ee23468a1ede5cb9608fff6035ced ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:02:25,998 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:26,000 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:26,013 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:26,014 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:26,015 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:26,017 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:26,019 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:26,021 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:26,022 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:26,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:26,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:26,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:26,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:26,028 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:26,028 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:26,030 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:26,032 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:26,034 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:26,036 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:26,038 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:26,039 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:26,042 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:26,043 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:26,043 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:26,044 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:26,046 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:26,047 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:26,048 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:26,050 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:26,050 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:26,051 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:26,051 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:26,051 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:26,053 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:26,054 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:26,055 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:02:26,072 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:26,072 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:26,073 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:26,074 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:26,075 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:26,075 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:26,075 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:26,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:26,076 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:26,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:02:26,077 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:26,077 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:26,077 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:26,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:26,078 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:26,078 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:26,078 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:26,078 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:26,080 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:26,080 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:26,080 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:26,080 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:26,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:26,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:26,081 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:26,081 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:26,082 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:02:26,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:26,082 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:02:26,082 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2018-09-20 15:02:26,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:26,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:26,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:26,192 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:26,193 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:26,195 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-20 15:02:26,547 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac4fb757/76d352d6aa3e489dae933e1fb2fc8825/FLAG52d8a1c08 [2018-09-20 15:02:26,792 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:26,794 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-20 15:02:26,807 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac4fb757/76d352d6aa3e489dae933e1fb2fc8825/FLAG52d8a1c08 [2018-09-20 15:02:26,828 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac4fb757/76d352d6aa3e489dae933e1fb2fc8825 [2018-09-20 15:02:26,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:26,836 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:26,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:26,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:26,846 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:26,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:26" (1/1) ... [2018-09-20 15:02:26,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377dc6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:26, skipping insertion in model container [2018-09-20 15:02:26,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:26" (1/1) ... [2018-09-20 15:02:26,865 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:27,164 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:27,186 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:27,233 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:27,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27 WrapperNode [2018-09-20 15:02:27,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:27,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:27,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:27,286 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:27,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (1/1) ... [2018-09-20 15:02:27,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (1/1) ... [2018-09-20 15:02:27,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (1/1) ... [2018-09-20 15:02:27,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (1/1) ... [2018-09-20 15:02:27,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (1/1) ... [2018-09-20 15:02:27,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (1/1) ... [2018-09-20 15:02:27,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (1/1) ... [2018-09-20 15:02:27,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:27,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:27,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:27,370 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:27,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (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 15:02:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-20 15:02:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:02:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-20 15:02:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:02:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:02:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:02:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:02:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:02:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:02:27,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:02:28,109 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:28,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:28 BoogieIcfgContainer [2018-09-20 15:02:28,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:28,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:28,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:28,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:28,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:26" (1/3) ... [2018-09-20 15:02:28,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90ce0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:28, skipping insertion in model container [2018-09-20 15:02:28,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:27" (2/3) ... [2018-09-20 15:02:28,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90ce0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:28, skipping insertion in model container [2018-09-20 15:02:28,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:28" (3/3) ... [2018-09-20 15:02:28,121 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-09-20 15:02:28,132 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:28,142 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:28,191 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:28,192 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:28,192 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:28,193 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:28,193 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:28,193 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:28,194 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:28,194 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:28,194 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-09-20 15:02:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:02:28,226 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:28,228 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] [2018-09-20 15:02:28,231 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:28,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1242244284, now seen corresponding path program 1 times [2018-09-20 15:02:28,239 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:28,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:28,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:28,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:28,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:28,395 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 15:02:28,404 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:28,404 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:28,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:28,426 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:28,428 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:28,431 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-09-20 15:02:28,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:28,459 INFO L93 Difference]: Finished difference Result 130 states and 168 transitions. [2018-09-20 15:02:28,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:28,462 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:02:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:28,475 INFO L225 Difference]: With dead ends: 130 [2018-09-20 15:02:28,476 INFO L226 Difference]: Without dead ends: 65 [2018-09-20 15:02:28,480 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 15:02:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-20 15:02:28,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-09-20 15:02:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-09-20 15:02:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2018-09-20 15:02:28,524 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 23 [2018-09-20 15:02:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:28,525 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2018-09-20 15:02:28,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2018-09-20 15:02:28,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-20 15:02:28,527 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:28,527 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 15:02:28,528 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:28,528 INFO L82 PathProgramCache]: Analyzing trace with hash -789968258, now seen corresponding path program 1 times [2018-09-20 15:02:28,528 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:28,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:28,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:28,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:28,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:28,701 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:02:28,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:28 BoogieIcfgContainer [2018-09-20 15:02:28,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:28,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:28,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:28,760 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:28,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:28" (3/4) ... [2018-09-20 15:02:28,768 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:02:28,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:28,769 INFO L168 Benchmark]: Toolchain (without parser) took 1935.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -134.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,773 INFO L168 Benchmark]: CDTParser took 0.39 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 15:02:28,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.73 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,775 INFO L168 Benchmark]: Boogie Preprocessor took 83.16 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,777 INFO L168 Benchmark]: RCFGBuilder took 740.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,779 INFO L168 Benchmark]: TraceAbstraction took 647.85 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,781 INFO L168 Benchmark]: Witness Printer took 8.03 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 15:02:28,787 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 447.73 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.16 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 740.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 647.85 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 8.03 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: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=6442450947, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] CALL, EXPR floor_double(x) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L20] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450952, ew_u={6442450948:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L21] FCALL ew_u.value = (x) VAL [\old(x)=6442450952, ew_u={6442450948:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L22] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L22] (i0) = ew_u.parts.msw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450952] [L22] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=6442450951, \old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450952] [L23] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450952] [L23] (i1) = ew_u.parts.lsw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L23] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=6442450946, \old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L24] COND FALSE !(0) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L26] COND FALSE !(j0 < 20) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=1024, x=6442450952] [L47] COND TRUE j0 > 51 VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=1024, x=6442450952] [L48] COND TRUE j0 == 0x400 [L49] RET return x + x; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=1024, x=6442450952] [L89] EXPR floor_double(x) VAL [floor_double(x)=6442450949, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L80] RET return x != x; VAL [\old(x)=6442450949, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L92] EXPR isnan_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=6442450949, x=6442450952] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450949, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 69 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 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=69occurred 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, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 15:02:31,270 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:31,273 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:31,291 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:31,292 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:31,293 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:31,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:31,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:31,301 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:31,305 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:31,306 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:31,307 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:31,308 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:31,309 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:31,310 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:31,311 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:31,312 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:31,315 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:31,320 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:31,322 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:31,325 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:31,328 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:31,331 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:31,334 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:31,335 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:31,336 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:31,337 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:31,339 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:31,340 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:31,343 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:31,345 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:31,346 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:31,346 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:31,347 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:31,350 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:31,351 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:31,351 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:02:31,375 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:31,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:31,376 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:31,377 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:31,377 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:31,378 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:31,378 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:31,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:31,379 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:31,379 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:31,379 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:31,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:31,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:31,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:31,379 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:02:31,380 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:02:31,380 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:31,380 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:31,380 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:31,382 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:31,382 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:31,383 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:31,383 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:31,383 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:31,383 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:31,383 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:31,384 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:31,385 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:02:31,385 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:31,385 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:02:31,385 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:02:31,385 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2018-09-20 15:02:31,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:31,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:31,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:31,470 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:31,470 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:31,471 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-20 15:02:31,837 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a6ca5593/bdd2372aa157402e8104ff2a16d08930/FLAG0593969ab [2018-09-20 15:02:32,029 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:32,030 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-20 15:02:32,038 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a6ca5593/bdd2372aa157402e8104ff2a16d08930/FLAG0593969ab [2018-09-20 15:02:32,056 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a6ca5593/bdd2372aa157402e8104ff2a16d08930 [2018-09-20 15:02:32,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:32,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:32,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:32,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:32,074 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:32,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ef386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32, skipping insertion in model container [2018-09-20 15:02:32,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,092 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:32,348 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:32,373 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:32,399 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:32,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32 WrapperNode [2018-09-20 15:02:32,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:32,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:32,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:32,438 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:32,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:32,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:32,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:32,525 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:32,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (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 15:02:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-20 15:02:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:02:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-20 15:02:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:02:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:02:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:02:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:02:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:02:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:02:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:02:33,162 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:33,186 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:33,209 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:34,733 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:34,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:34 BoogieIcfgContainer [2018-09-20 15:02:34,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:34,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:34,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:34,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:34,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:32" (1/3) ... [2018-09-20 15:02:34,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de3111f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:34, skipping insertion in model container [2018-09-20 15:02:34,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (2/3) ... [2018-09-20 15:02:34,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de3111f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:34, skipping insertion in model container [2018-09-20 15:02:34,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:34" (3/3) ... [2018-09-20 15:02:34,744 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-09-20 15:02:34,754 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:34,762 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:34,811 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:34,812 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:34,812 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:34,813 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:34,813 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:34,813 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:34,813 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:34,814 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:34,814 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:34,836 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-09-20 15:02:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:02:34,846 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:34,848 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] [2018-09-20 15:02:34,852 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:34,858 INFO L82 PathProgramCache]: Analyzing trace with hash -79646298, now seen corresponding path program 1 times [2018-09-20 15:02:34,863 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:34,864 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 15:02:34,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:34,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:35,011 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 15:02:35,012 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:35,026 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:35,027 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:35,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:35,043 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:35,044 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:35,046 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-09-20 15:02:35,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:35,083 INFO L93 Difference]: Finished difference Result 128 states and 166 transitions. [2018-09-20 15:02:35,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:35,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:02:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:35,103 INFO L225 Difference]: With dead ends: 128 [2018-09-20 15:02:35,107 INFO L226 Difference]: Without dead ends: 64 [2018-09-20 15:02:35,113 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 15:02:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-20 15:02:35,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-20 15:02:35,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-20 15:02:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2018-09-20 15:02:35,161 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 22 [2018-09-20 15:02:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:35,161 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2018-09-20 15:02:35,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2018-09-20 15:02:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:02:35,164 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:35,164 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] [2018-09-20 15:02:35,165 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:35,165 INFO L82 PathProgramCache]: Analyzing trace with hash -26621879, now seen corresponding path program 1 times [2018-09-20 15:02:35,166 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:35,166 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 15:02:35,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:35,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:36,354 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-20 15:02:37,047 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 15:02:37,047 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:37,061 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:37,061 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:37,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:37,063 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:37,064 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:37,064 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand 9 states. [2018-09-20 15:02:39,249 WARN L178 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:02:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:44,884 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2018-09-20 15:02:44,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:02:44,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-20 15:02:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:44,896 INFO L225 Difference]: With dead ends: 73 [2018-09-20 15:02:44,896 INFO L226 Difference]: Without dead ends: 66 [2018-09-20 15:02:44,897 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:02:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-09-20 15:02:44,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-09-20 15:02:44,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-20 15:02:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2018-09-20 15:02:44,911 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 35 [2018-09-20 15:02:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:44,912 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2018-09-20 15:02:44,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2018-09-20 15:02:44,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:02:44,914 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:44,914 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] [2018-09-20 15:02:44,915 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:44,915 INFO L82 PathProgramCache]: Analyzing trace with hash -223135384, now seen corresponding path program 1 times [2018-09-20 15:02:44,916 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:44,916 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 15:02:44,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:44,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:45,570 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 15:02:45,571 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:45,585 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:45,586 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:45,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:45,586 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:45,587 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:45,587 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 9 states. [2018-09-20 15:02:47,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:47,545 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2018-09-20 15:02:47,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:02:47,547 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-20 15:02:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:47,548 INFO L225 Difference]: With dead ends: 71 [2018-09-20 15:02:47,548 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:02:47,549 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:02:47,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:02:47,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:02:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:02:47,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2018-09-20 15:02:47,558 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 35 [2018-09-20 15:02:47,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:47,559 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2018-09-20 15:02:47,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:47,560 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2018-09-20 15:02:47,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-20 15:02:47,561 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:47,562 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] [2018-09-20 15:02:47,563 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:47,563 INFO L82 PathProgramCache]: Analyzing trace with hash -398097968, now seen corresponding path program 1 times [2018-09-20 15:02:47,564 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:47,564 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) [2018-09-20 15:02:47,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:47,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:47,814 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 14 treesize of output 11 [2018-09-20 15:02:47,820 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 11 treesize of output 10 [2018-09-20 15:02:47,821 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:47,830 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:47,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:47,851 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:47,901 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 20 treesize of output 16 [2018-09-20 15:02:47,910 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 16 treesize of output 4 [2018-09-20 15:02:47,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:47,916 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:47,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:47,930 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:48,256 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 15:02:48,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:48,273 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:48,273 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:48,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:48,274 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:48,274 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:48,276 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 9 states. [2018-09-20 15:02:49,110 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:02:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:55,207 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2018-09-20 15:02:55,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:02:55,213 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-09-20 15:02:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:55,214 INFO L225 Difference]: With dead ends: 119 [2018-09-20 15:02:55,214 INFO L226 Difference]: Without dead ends: 72 [2018-09-20 15:02:55,216 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:02:55,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-20 15:02:55,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2018-09-20 15:02:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-20 15:02:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-09-20 15:02:55,224 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 48 [2018-09-20 15:02:55,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:55,224 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-09-20 15:02:55,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-09-20 15:02:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-20 15:02:55,227 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:55,227 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] [2018-09-20 15:02:55,228 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:55,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1115235079, now seen corresponding path program 1 times [2018-09-20 15:02:55,228 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:55,229 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 15:02:55,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:55,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:55,430 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 14 treesize of output 11 [2018-09-20 15:02:55,438 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 11 treesize of output 10 [2018-09-20 15:02:55,438 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:55,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:55,461 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:55,461 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:55,508 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 20 treesize of output 16 [2018-09-20 15:02:55,513 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 16 treesize of output 4 [2018-09-20 15:02:55,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:55,518 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:55,529 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:55,530 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:55,968 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 15:02:55,968 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:55,981 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:55,982 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:02:55,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:02:55,982 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:02:55,983 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:02:55,983 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 10 states. [2018-09-20 15:02:57,287 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-09-20 15:02:58,517 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-09-20 15:02:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:59,013 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2018-09-20 15:02:59,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:02:59,015 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2018-09-20 15:02:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:59,015 INFO L225 Difference]: With dead ends: 72 [2018-09-20 15:02:59,016 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:02:59,017 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:02:59,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:02:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:02:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:02:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:02:59,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-09-20 15:02:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:59,019 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:02:59,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:02:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:02:59,024 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:02:59,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:02:59,233 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-09-20 15:02:59,265 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-09-20 15:02:59,265 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:02:59,265 INFO L422 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (= floor_double_~x |floor_double_#in~x|) [2018-09-20 15:02:59,266 INFO L426 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:02:59,266 INFO L426 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:02:59,266 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-09-20 15:02:59,266 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:02:59,270 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:02:59,270 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:02:59,270 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:02:59,270 INFO L429 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-09-20 15:02:59,270 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:02:59,270 INFO L426 ceAbstractionStarter]: For program point L70-2(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:02:59,270 INFO L426 ceAbstractionStarter]: For program point L70-3(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L71-1(line 71) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L71-2(line 71) no Hoare annotation was computed. [2018-09-20 15:02:59,271 INFO L426 ceAbstractionStarter]: For program point L71-3(line 71) no Hoare annotation was computed. [2018-09-20 15:02:59,274 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:02:59,275 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-09-20 15:02:59,276 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-09-20 15:02:59,277 INFO L426 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-09-20 15:02:59,277 INFO L426 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-09-20 15:02:59,277 INFO L426 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-09-20 15:02:59,277 INFO L426 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-09-20 15:02:59,277 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-09-20 15:02:59,277 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-09-20 15:02:59,277 INFO L429 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 80) the Hoare annotation is: true [2018-09-20 15:02:59,280 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 80) no Hoare annotation was computed. [2018-09-20 15:02:59,281 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 80) no Hoare annotation was computed. [2018-09-20 15:02:59,281 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:59,281 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:59,281 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:59,281 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:59,281 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:02:59,281 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:59,281 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:59,281 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 82 98) the Hoare annotation is: true [2018-09-20 15:02:59,282 INFO L426 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2018-09-20 15:02:59,282 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 82 98) no Hoare annotation was computed. [2018-09-20 15:02:59,282 INFO L422 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 11 53) (_ +zero 11 53)))) (and (= .cse0 main_~x~0) (= .cse0 main_~res~0))) [2018-09-20 15:02:59,282 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2018-09-20 15:02:59,284 INFO L426 ceAbstractionStarter]: For program point L92-1(lines 92 95) no Hoare annotation was computed. [2018-09-20 15:02:59,285 INFO L422 ceAbstractionStarter]: At program point L89(line 89) the Hoare annotation is: (= (fp.div RNE (_ +zero 11 53) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:02:59,285 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 82 98) no Hoare annotation was computed. [2018-09-20 15:02:59,285 INFO L426 ceAbstractionStarter]: For program point L89-1(line 89) no Hoare annotation was computed. [2018-09-20 15:02:59,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:59 BoogieIcfgContainer [2018-09-20 15:02:59,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:59,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:59,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:59,298 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:59,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:34" (3/4) ... [2018-09-20 15:02:59,302 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:02:59,309 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-09-20 15:02:59,309 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:02:59,310 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:02:59,310 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:02:59,320 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:02:59,321 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:02:59,321 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:02:59,347 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:02:59,394 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:02:59,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:59,395 INFO L168 Benchmark]: Toolchain (without parser) took 27333.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 950.5 MB in the beginning and 1.2 GB in the end (delta: -230.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:59,396 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 15:02:59,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:59,398 INFO L168 Benchmark]: Boogie Preprocessor took 85.93 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:59,398 INFO L168 Benchmark]: RCFGBuilder took 2209.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:59,399 INFO L168 Benchmark]: TraceAbstraction took 24562.22 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 1.2 GB in the end (delta: -81.0 MB). Peak memory consumption was 310.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:59,400 INFO L168 Benchmark]: Witness Printer took 96.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:59,404 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 371.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.93 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2209.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24562.22 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 1.2 GB in the end (delta: -81.0 MB). Peak memory consumption was 310.4 MB. Max. memory is 11.5 GB. * Witness Printer took 96.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. SAFE Result, 24.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 19.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 284 SDtfs, 401 SDslu, 1156 SDs, 0 SdLazy, 507 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 184 ConstructedInterpolants, 61 QuantifiedInterpolants, 76833 SizeOfPredicates, 24 NumberOfNonLiveVariables, 381 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...