/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032d_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_1032d_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 bc388f4eaa6aadf687b7d35c78a026571921b2b6 ............................................................................................................................................................................................................................................................................................................................. 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_1032d_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 bc388f4eaa6aadf687b7d35c78a026571921b2b6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:02:12,911 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:12,913 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:12,925 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:12,925 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:12,926 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:12,928 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:12,930 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:12,932 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:12,933 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:12,934 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:12,934 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:12,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:12,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:12,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:12,938 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:12,939 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:12,941 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:12,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:12,946 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:12,947 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:12,948 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:12,951 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:12,951 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:12,951 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:12,953 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:12,954 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:12,955 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:12,956 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:12,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:12,957 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:12,958 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:12,958 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:12,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:12,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:12,961 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:12,961 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:02:12,979 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:12,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:12,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:12,981 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:12,982 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:12,982 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:12,982 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:12,983 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:12,983 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:12,983 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:02:12,983 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:12,983 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:12,984 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:12,984 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:12,984 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:12,984 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:12,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:12,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:12,986 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:12,986 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:12,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:12,986 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:12,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:12,987 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:12,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:12,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:12,989 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:02:12,989 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:12,989 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:02:12,989 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 -> bc388f4eaa6aadf687b7d35c78a026571921b2b6 [2018-09-20 15:02:13,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:13,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:13,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:13,083 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:13,084 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:13,085 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-09-20 15:02:13,446 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecb8dfb5f/da4ae66c69b3494da897cbffc273985a/FLAGa58e8f5c0 [2018-09-20 15:02:13,591 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:13,592 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-09-20 15:02:13,600 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecb8dfb5f/da4ae66c69b3494da897cbffc273985a/FLAGa58e8f5c0 [2018-09-20 15:02:13,617 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecb8dfb5f/da4ae66c69b3494da897cbffc273985a [2018-09-20 15:02:13,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:13,624 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:13,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:13,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:13,633 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:13,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:13" (1/1) ... [2018-09-20 15:02:13,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a561c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:13, skipping insertion in model container [2018-09-20 15:02:13,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:13" (1/1) ... [2018-09-20 15:02:13,649 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:13,900 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:13,920 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:13,969 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:14,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14 WrapperNode [2018-09-20 15:02:14,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:14,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:14,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:14,013 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:14,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (1/1) ... [2018-09-20 15:02:14,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (1/1) ... [2018-09-20 15:02:14,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (1/1) ... [2018-09-20 15:02:14,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (1/1) ... [2018-09-20 15:02:14,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (1/1) ... [2018-09-20 15:02:14,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (1/1) ... [2018-09-20 15:02:14,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (1/1) ... [2018-09-20 15:02:14,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:14,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:14,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:14,079 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:14,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (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 15:02:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:02:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:02:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:02:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:02:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:02:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:02:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:02:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:02:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:02:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:02:14,911 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:14,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:14 BoogieIcfgContainer [2018-09-20 15:02:14,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:14,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:14,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:14,916 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:14,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:13" (1/3) ... [2018-09-20 15:02:14,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494fcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:14, skipping insertion in model container [2018-09-20 15:02:14,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:14" (2/3) ... [2018-09-20 15:02:14,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494fcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:14, skipping insertion in model container [2018-09-20 15:02:14,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:14" (3/3) ... [2018-09-20 15:02:14,920 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d_true-unreach-call.c [2018-09-20 15:02:14,930 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:14,938 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:14,992 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:14,993 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:14,993 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:14,993 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:14,993 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:14,993 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:14,994 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:14,994 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:14,994 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:15,016 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-09-20 15:02:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-20 15:02:15,024 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:15,026 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:15,029 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:15,035 INFO L82 PathProgramCache]: Analyzing trace with hash -79699813, now seen corresponding path program 1 times [2018-09-20 15:02:15,037 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:15,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:15,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:15,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:15,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:15,219 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 15:02:15,222 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:15,222 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:15,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:15,244 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:15,245 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:15,248 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-09-20 15:02:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:15,282 INFO L93 Difference]: Finished difference Result 144 states and 173 transitions. [2018-09-20 15:02:15,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:15,284 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-09-20 15:02:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:15,297 INFO L225 Difference]: With dead ends: 144 [2018-09-20 15:02:15,297 INFO L226 Difference]: Without dead ends: 72 [2018-09-20 15:02:15,305 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 15:02:15,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-20 15:02:15,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-09-20 15:02:15,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-09-20 15:02:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2018-09-20 15:02:15,376 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 25 [2018-09-20 15:02:15,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:15,376 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2018-09-20 15:02:15,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2018-09-20 15:02:15,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:02:15,383 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:15,383 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:15,384 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:15,384 INFO L82 PathProgramCache]: Analyzing trace with hash -232877713, now seen corresponding path program 1 times [2018-09-20 15:02:15,384 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:15,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:15,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:15,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:15,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:15,771 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:02:15,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:15 BoogieIcfgContainer [2018-09-20 15:02:15,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:15,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:15,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:15,843 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:15,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:14" (3/4) ... [2018-09-20 15:02:15,850 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:02:15,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:15,851 INFO L168 Benchmark]: Toolchain (without parser) took 2228.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -100.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:15,853 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:15,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:15,854 INFO L168 Benchmark]: Boogie Preprocessor took 66.26 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 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 15:02:15,855 INFO L168 Benchmark]: RCFGBuilder took 832.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:15,856 INFO L168 Benchmark]: TraceAbstraction took 928.98 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:15,857 INFO L168 Benchmark]: Witness Printer took 7.73 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 15:02:15,861 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.26 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 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 832.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 928.98 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. * Witness Printer took 7.73 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: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 31, overapproximation of bitwiseOr at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = -1.0 / 0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=6442450947] [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; VAL [\old(x)=6442450947, x=6442450947] [L18] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450947, ew_u={6442450952:0}, x=6442450947] [L19] FCALL ew_u.value = (x) VAL [\old(x)=6442450947, ew_u={6442450952:0}, x=6442450947] [L20] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450947, ew_u={6442450952:0}, ew_u.parts.msw=3, x=6442450947] [L20] (msw) = ew_u.parts.msw VAL [\old(x)=6442450947, ew_u={6442450952:0}, ew_u.parts.msw=3, msw=3, x=6442450947] [L20] FCALL (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=6442450945, \old(x)=6442450947, ew_u={6442450952:0}, ew_u.parts.msw=3, msw=3, x=6442450947] [L21] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450947, ew_u={6442450952:0}, ew_u.parts.lsw=-4294967296, msw=3, x=6442450947] [L21] (lsw) = ew_u.parts.lsw VAL [\old(x)=6442450947, ew_u={6442450952:0}, ew_u.parts.lsw=-4294967296, lsw=0, msw=3, x=6442450947] [L21] FCALL (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=6442450948, \old(x)=6442450947, ew_u={6442450952:0}, ew_u.parts.lsw=-4294967296, lsw=0, msw=3, x=6442450947] [L22] COND FALSE !(0) VAL [\old(x)=6442450947, lsw=0, msw=3, x=6442450947] [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=6442450947, exponent_less_1023=0, lsw=0, msw=3, x=6442450947] [L24] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=6442450947, exponent_less_1023=0, lsw=0, msw=3, x=6442450947] [L25] COND FALSE !(exponent_less_1023 < 0) [L31] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=6442450947, exponent_less_1023=0, lsw=0, msw=3, x=6442450947] [L32] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L33] RET return x; VAL [\old(x)=6442450947, \result=6442450947, exponent_less_1023=0, lsw=0, msw=3, x=6442450947] [L87] EXPR round_double(x) VAL [round_double(x)=6442450947, x=6442450947] [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) VAL [\old(x)=6442450947] [L65] __int32_t hx, lx; VAL [\old(x)=6442450947, x=6442450947] [L67] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450947, ew_u={6442450949:0}, x=6442450947] [L68] FCALL ew_u.value = (x) VAL [\old(x)=6442450947, ew_u={6442450949:0}, x=6442450947] [L69] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450947, ew_u={6442450949:0}, ew_u.parts.msw=6442450944, x=6442450947] [L69] (hx) = ew_u.parts.msw VAL [\old(x)=6442450947, ew_u={6442450949:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=6442450947] [L69] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=6442450951, \old(x)=6442450947, ew_u={6442450949:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=6442450947] [L70] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450947, ew_u={6442450949:0}, ew_u.parts.lsw=-6442450944, hx=-2147483648, x=6442450947] [L70] (lx) = ew_u.parts.lsw VAL [\old(x)=6442450947, ew_u={6442450949:0}, ew_u.parts.lsw=-6442450944, hx=-2147483648, lx=-2147483648, x=6442450947] [L70] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=6442450950, \old(x)=6442450947, ew_u={6442450949:0}, ew_u.parts.lsw=-6442450944, hx=-2147483648, lx=-2147483648, x=6442450947] [L71] COND FALSE !(0) VAL [\old(x)=6442450947, hx=-2147483648, lx=-2147483648, x=6442450947] [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=6442450947, \result=0, hx=2146435073, lx=-2147483648, x=6442450947] [L90] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=6442450947, x=6442450947] [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() VAL [res=6442450947, x=6442450947] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.8s 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=76occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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 15:02:18,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:18,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:18,225 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:18,226 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:18,227 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:18,228 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:18,232 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:18,235 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:18,240 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:18,241 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:18,242 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:18,243 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:18,244 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:18,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:18,249 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:18,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:18,252 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:18,254 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:18,258 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:18,259 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:18,263 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:18,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:18,266 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:18,267 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:18,273 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:18,274 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:18,276 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:18,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:18,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:18,284 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:18,285 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:18,286 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:18,286 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:18,287 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:18,290 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:18,291 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:02:18,322 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:18,322 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:18,323 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:18,323 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:18,324 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:18,324 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:18,324 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:18,324 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:18,324 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:18,325 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:18,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:18,325 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:18,325 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:18,325 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:18,325 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:02:18,326 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:02:18,326 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:18,326 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:18,326 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:18,326 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:18,327 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:18,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:18,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:18,327 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:18,327 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:18,327 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:18,328 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:18,328 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:02:18,328 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:18,328 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:02:18,328 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:02:18,329 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 -> bc388f4eaa6aadf687b7d35c78a026571921b2b6 [2018-09-20 15:02:18,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:18,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:18,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:18,422 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:18,423 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:18,423 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-09-20 15:02:18,764 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812149c17/dd0244728278422d8e869d7784f3de5e/FLAG39b368e2d [2018-09-20 15:02:18,939 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:18,940 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-09-20 15:02:18,948 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812149c17/dd0244728278422d8e869d7784f3de5e/FLAG39b368e2d [2018-09-20 15:02:18,966 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812149c17/dd0244728278422d8e869d7784f3de5e [2018-09-20 15:02:18,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:18,973 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:18,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:18,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:18,982 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:18,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:18" (1/1) ... [2018-09-20 15:02:18,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fde42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:18, skipping insertion in model container [2018-09-20 15:02:18,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:18" (1/1) ... [2018-09-20 15:02:18,998 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:19,286 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:19,309 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:19,340 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:19,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19 WrapperNode [2018-09-20 15:02:19,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:19,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:19,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:19,379 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:19,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (1/1) ... [2018-09-20 15:02:19,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (1/1) ... [2018-09-20 15:02:19,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (1/1) ... [2018-09-20 15:02:19,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (1/1) ... [2018-09-20 15:02:19,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (1/1) ... [2018-09-20 15:02:19,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (1/1) ... [2018-09-20 15:02:19,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (1/1) ... [2018-09-20 15:02:19,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:19,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:19,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:19,462 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:19,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (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 15:02:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:02:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:02:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:02:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:02:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:02:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:02:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:02:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:02:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:02:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:02:19,823 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:19,872 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:19,952 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:20,125 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:20,140 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:20,160 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:20,372 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:20,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:20 BoogieIcfgContainer [2018-09-20 15:02:20,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:20,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:20,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:20,377 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:20,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:18" (1/3) ... [2018-09-20 15:02:20,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35075e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:20, skipping insertion in model container [2018-09-20 15:02:20,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:19" (2/3) ... [2018-09-20 15:02:20,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35075e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:20, skipping insertion in model container [2018-09-20 15:02:20,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:20" (3/3) ... [2018-09-20 15:02:20,381 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d_true-unreach-call.c [2018-09-20 15:02:20,391 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:20,399 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:20,445 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:20,446 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:20,446 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:20,446 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:20,446 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:20,446 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:20,448 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:20,448 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:20,448 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-09-20 15:02:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:02:20,477 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:20,478 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] [2018-09-20 15:02:20,481 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:20,486 INFO L82 PathProgramCache]: Analyzing trace with hash 483931145, now seen corresponding path program 1 times [2018-09-20 15:02:20,490 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:20,491 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 15:02:20,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:20,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:20,594 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 15:02:20,594 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:20,611 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:20,611 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:20,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:20,631 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:20,632 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:20,635 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-09-20 15:02:20,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:20,663 INFO L93 Difference]: Finished difference Result 142 states and 171 transitions. [2018-09-20 15:02:20,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:20,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:02:20,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:20,676 INFO L225 Difference]: With dead ends: 142 [2018-09-20 15:02:20,676 INFO L226 Difference]: Without dead ends: 71 [2018-09-20 15:02:20,680 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 15:02:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-09-20 15:02:20,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-09-20 15:02:20,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-09-20 15:02:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2018-09-20 15:02:20,724 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 24 [2018-09-20 15:02:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:20,725 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2018-09-20 15:02:20,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2018-09-20 15:02:20,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:02:20,728 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:20,728 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:20,729 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:20,729 INFO L82 PathProgramCache]: Analyzing trace with hash 287017234, now seen corresponding path program 1 times [2018-09-20 15:02:20,730 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:20,730 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) [2018-09-20 15:02:20,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:20,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:20,969 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 15:02:20,984 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 15:02:20,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:21,011 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:21,041 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 15:02:21,042 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:21,125 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 15:02:21,139 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 15:02:21,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:21,165 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:21,244 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 15:02:21,244 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:21,757 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 15:02:21,757 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:21,771 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:21,771 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:21,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:21,775 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:21,775 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:21,775 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand 9 states. [2018-09-20 15:02:24,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:24,666 INFO L93 Difference]: Finished difference Result 129 states and 135 transitions. [2018-09-20 15:02:24,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-20 15:02:24,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-20 15:02:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:24,671 INFO L225 Difference]: With dead ends: 129 [2018-09-20 15:02:24,671 INFO L226 Difference]: Without dead ends: 85 [2018-09-20 15:02:24,673 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:02:24,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-20 15:02:24,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 67. [2018-09-20 15:02:24,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-20 15:02:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-09-20 15:02:24,685 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 50 [2018-09-20 15:02:24,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:24,686 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-09-20 15:02:24,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-09-20 15:02:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:02:24,688 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:24,688 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:24,688 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:24,689 INFO L82 PathProgramCache]: Analyzing trace with hash 749742405, now seen corresponding path program 1 times [2018-09-20 15:02:24,689 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:24,689 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 15:02:24,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:24,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:24,820 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 15:02:24,827 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 15:02:24,827 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:24,835 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:24,851 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 15:02:24,851 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:24,896 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 15:02:24,903 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 15:02:24,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:24,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:24,922 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 15:02:24,922 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:25,197 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 15:02:25,197 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:25,208 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:25,208 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:25,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:25,209 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:25,209 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:25,211 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 9 states. [2018-09-20 15:02:27,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:27,695 INFO L93 Difference]: Finished difference Result 110 states and 112 transitions. [2018-09-20 15:02:27,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:02:27,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-20 15:02:27,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:27,698 INFO L225 Difference]: With dead ends: 110 [2018-09-20 15:02:27,698 INFO L226 Difference]: Without dead ends: 51 [2018-09-20 15:02:27,699 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:02:27,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-20 15:02:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-20 15:02:27,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:02:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-09-20 15:02:27,706 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 50 [2018-09-20 15:02:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:27,706 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-09-20 15:02:27,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-09-20 15:02:27,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:02:27,709 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:27,709 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:27,709 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:27,710 INFO L82 PathProgramCache]: Analyzing trace with hash 313546150, now seen corresponding path program 1 times [2018-09-20 15:02:27,711 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:27,711 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:27,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:27,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:27,832 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 15:02:27,838 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 15:02:27,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:27,845 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:27,863 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 15:02:27,864 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:27,901 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 15:02:27,907 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 15:02:27,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:27,920 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:27,930 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 15:02:27,931 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:28,174 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 15:02:28,175 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:28,192 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:28,192 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:28,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:28,192 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:28,193 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:28,193 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 9 states. [2018-09-20 15:02:30,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:30,232 INFO L93 Difference]: Finished difference Result 76 states and 75 transitions. [2018-09-20 15:02:30,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 15:02:30,234 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-20 15:02:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:30,235 INFO L225 Difference]: With dead ends: 76 [2018-09-20 15:02:30,235 INFO L226 Difference]: Without dead ends: 51 [2018-09-20 15:02:30,236 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:02:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-20 15:02:30,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-20 15:02:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:02:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 50 transitions. [2018-09-20 15:02:30,242 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 50 transitions. Word has length 50 [2018-09-20 15:02:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:30,243 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 50 transitions. [2018-09-20 15:02:30,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 50 transitions. [2018-09-20 15:02:30,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:02:30,245 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:30,246 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:30,246 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:30,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1904211803, now seen corresponding path program 1 times [2018-09-20 15:02:30,247 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:30,247 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) [2018-09-20 15:02:30,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:30,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:31,195 WARN L178 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-20 15:02:31,629 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:31,646 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:31,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 15:02:31,658 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:31,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 15:02:31,681 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:31,701 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:31,723 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 15:02:31,723 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 15:02:32,678 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:32,679 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:32,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-20 15:02:32,691 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:32,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 15:02:32,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:32,913 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:32,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:32,956 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-20 15:02:33,292 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 35 treesize of output 27 [2018-09-20 15:02:33,301 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:33,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 15:02:33,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:33,315 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:33,329 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 15:02:33,329 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-20 15:02:34,323 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 15:02:34,324 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:34,342 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:34,342 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-20 15:02:34,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-20 15:02:34,343 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-20 15:02:34,343 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:02:34,344 INFO L87 Difference]: Start difference. First operand 51 states and 50 transitions. Second operand 15 states. [2018-09-20 15:02:36,860 WARN L178 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:02:40,567 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 15:02:41,283 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-20 15:02:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:42,463 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2018-09-20 15:02:42,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-20 15:02:42,464 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2018-09-20 15:02:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:42,465 INFO L225 Difference]: With dead ends: 51 [2018-09-20 15:02:42,465 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:02:42,466 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2018-09-20 15:02:42,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:02:42,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:02:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:02:42,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:02:42,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-20 15:02:42,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:42,468 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:02:42,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-20 15:02:42,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:02:42,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:02:42,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:02:42,674 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:42,674 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:42,674 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:42,674 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-09-20 15:02:42,674 INFO L422 ceAbstractionStarter]: At program point L66-3(lines 66 71) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L66-4(lines 66 71) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L69-2(line 69) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L67-2(line 67) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point L67-3(line 67) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-09-20 15:02:42,675 INFO L426 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-09-20 15:02:42,676 INFO L429 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-09-20 15:02:42,676 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-20 15:02:42,676 INFO L426 ceAbstractionStarter]: For program point L70-1(line 70) no Hoare annotation was computed. [2018-09-20 15:02:42,676 INFO L426 ceAbstractionStarter]: For program point L68(line 68) no Hoare annotation was computed. [2018-09-20 15:02:42,676 INFO L426 ceAbstractionStarter]: For program point L70-2(line 70) no Hoare annotation was computed. [2018-09-20 15:02:42,676 INFO L426 ceAbstractionStarter]: For program point L70-3(line 70) no Hoare annotation was computed. [2018-09-20 15:02:42,676 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-09-20 15:02:42,676 INFO L426 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-09-20 15:02:42,677 INFO L426 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L429 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:02:42,678 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:02:42,679 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L54-2(lines 14 61) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L54-3(lines 54 59) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L422 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2018-09-20 15:02:42,680 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L55-3(line 55) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:42,681 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:02:42,682 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:42,682 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:42,682 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-09-20 15:02:42,682 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-09-20 15:02:42,682 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-20 15:02:42,682 INFO L422 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 11 53) RNE 1.0)) (_ +zero 11 53)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-20 15:02:42,682 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-09-20 15:02:42,682 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-09-20 15:02:42,683 INFO L422 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 11 53) RNE 1.0)) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:02:42,683 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:02:42,683 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-09-20 15:02:42,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:42 BoogieIcfgContainer [2018-09-20 15:02:42,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:42,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:42,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:42,695 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:42,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:20" (3/4) ... [2018-09-20 15:02:42,699 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:02:42,706 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:02:42,706 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-20 15:02:42,706 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-09-20 15:02:42,707 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:02:42,713 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:02:42,713 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-20 15:02:42,713 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:02:42,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:42,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:02:42,796 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:02:42,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:42,797 INFO L168 Benchmark]: Toolchain (without parser) took 23826.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -136.0 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:42,799 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 15:02:42,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:42,799 INFO L168 Benchmark]: Boogie Preprocessor took 82.76 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:42,800 INFO L168 Benchmark]: RCFGBuilder took 910.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:42,801 INFO L168 Benchmark]: TraceAbstraction took 22320.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:42,801 INFO L168 Benchmark]: Witness Printer took 101.62 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 15:02:42,804 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 404.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.76 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 910.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22320.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. * Witness Printer took 101.62 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: - PositiveResult [Line: 91]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 75 locations, 1 error locations. SAFE Result, 22.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 15.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 287 SDtfs, 308 SDslu, 1229 SDs, 0 SdLazy, 522 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 219 ConstructedInterpolants, 66 QuantifiedInterpolants, 80203 SizeOfPredicates, 35 NumberOfNonLiveVariables, 459 ConjunctsInSsa, 49 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...