/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031_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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .............................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031_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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:37:52,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:37:52,906 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:37:52,918 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:37:52,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:37:52,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:37:52,921 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:37:52,923 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:37:52,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:37:52,925 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:37:52,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:37:52,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:37:52,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:37:52,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:37:52,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:37:52,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:37:52,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:37:52,933 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:37:52,935 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:37:52,937 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:37:52,938 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:37:52,939 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:37:52,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:37:52,942 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:37:52,942 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:37:52,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:37:52,944 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:37:52,945 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:37:52,946 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:37:52,947 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:37:52,948 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:37:52,948 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:37:52,949 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:37:52,949 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:37:52,950 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:37:52,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:37:52,951 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:37:52,966 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:37:52,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:37:52,968 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:37:52,968 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:37:52,968 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:37:52,969 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:37:52,969 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:37:52,969 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:37:52,969 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:37:52,970 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:37:52,970 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:37:52,970 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:37:52,970 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:37:52,970 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:37:52,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:37:52,971 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:37:52,971 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:37:52,971 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:37:52,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:37:52,972 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:37:52,972 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:37:52,972 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:37:52,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:37:52,973 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:37:52,973 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:37:52,973 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:37:52,973 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:37:52,974 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:37:52,974 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:37:52,974 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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:37:53,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:37:53,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:37:53,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:37:53,055 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:37:53,055 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:37:53,056 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-09-21 18:37:53,408 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00bf8adc/ccbcc62095ef4e5099ca87b1c223b550/FLAGfb21999f5 [2018-09-21 18:37:53,560 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:37:53,561 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-09-21 18:37:53,569 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00bf8adc/ccbcc62095ef4e5099ca87b1c223b550/FLAGfb21999f5 [2018-09-21 18:37:53,586 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00bf8adc/ccbcc62095ef4e5099ca87b1c223b550 [2018-09-21 18:37:53,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:37:53,594 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:37:53,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:53,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:37:53,603 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:37:53,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c12811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53, skipping insertion in model container [2018-09-21 18:37:53,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,620 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:37:53,847 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:53,867 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:37:53,884 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:53,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53 WrapperNode [2018-09-21 18:37:53,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:53,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:37:53,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:37:53,913 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:37:53,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (1/1) ... [2018-09-21 18:37:53,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:37:53,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:37:53,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:37:53,969 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:37:53,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (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 [2018-09-21 18:37:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:37:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:37:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-09-21 18:37:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:37:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:37:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:37:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-09-21 18:37:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:37:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:37:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:37:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:37:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:37:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:37:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:37:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:37:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:37:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:37:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:37:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:37:54,685 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:37:54,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:54 BoogieIcfgContainer [2018-09-21 18:37:54,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:37:54,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:37:54,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:37:54,691 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:37:54,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:37:53" (1/3) ... [2018-09-21 18:37:54,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482e6c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:54, skipping insertion in model container [2018-09-21 18:37:54,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:53" (2/3) ... [2018-09-21 18:37:54,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482e6c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:54, skipping insertion in model container [2018-09-21 18:37:54,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:54" (3/3) ... [2018-09-21 18:37:54,697 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031_true-unreach-call.c [2018-09-21 18:37:54,707 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:37:54,717 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:37:54,759 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:37:54,759 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:37:54,759 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:37:54,760 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:37:54,760 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:37:54,760 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:37:54,760 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:37:54,760 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:37:54,760 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:37:54,778 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-09-21 18:37:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:37:54,790 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:54,791 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:54,794 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:54,800 INFO L82 PathProgramCache]: Analyzing trace with hash -618862010, now seen corresponding path program 1 times [2018-09-21 18:37:54,802 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:37:54,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:37:54,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:54,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:54,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:54,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:54,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:37:54,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:37:54,968 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:37:54,969 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:54,971 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-09-21 18:37:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:54,991 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2018-09-21 18:37:54,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:37:54,993 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:37:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:55,005 INFO L225 Difference]: With dead ends: 50 [2018-09-21 18:37:55,006 INFO L226 Difference]: Without dead ends: 46 [2018-09-21 18:37:55,008 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 [2018-09-21 18:37:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-09-21 18:37:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-09-21 18:37:55,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-09-21 18:37:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-09-21 18:37:55,054 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 22 [2018-09-21 18:37:55,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:55,055 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-09-21 18:37:55,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:37:55,055 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-09-21 18:37:55,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:37:55,056 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:55,057 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:55,057 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:55,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1742972752, now seen corresponding path program 1 times [2018-09-21 18:37:55,058 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:37:55,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:37:55,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:55,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:55,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:37:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:37:55,285 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:37:55,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:37:55 BoogieIcfgContainer [2018-09-21 18:37:55,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:37:55,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:37:55,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:37:55,334 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:37:55,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:54" (3/4) ... [2018-09-21 18:37:55,339 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:37:55,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:37:55,341 INFO L168 Benchmark]: Toolchain (without parser) took 1748.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:55,343 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. [2018-09-21 18:37:55,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:55,345 INFO L168 Benchmark]: Boogie Preprocessor took 55.71 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:55,346 INFO L168 Benchmark]: RCFGBuilder took 717.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:55,349 INFO L168 Benchmark]: TraceAbstraction took 644.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:55,350 INFO L168 Benchmark]: Witness Printer took 6.73 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. [2018-09-21 18:37:55,356 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 316.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.71 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 717.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 644.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.73 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: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L66] CALL, EXPR round_float(x) VAL [\old(x)=8] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=8, x=8] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=8, gf_u={5:0}, x=8] [L18] FCALL gf_u.value = (x) VAL [\old(x)=8, gf_u={5:0}, x=8] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=8, gf_u={5:0}, gf_u.word=9, x=8] [L19] (w) = gf_u.word VAL [\old(x)=8, gf_u={5:0}, gf_u.word=9, w=9, x=8] [L19] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=11, \old(x)=8, gf_u={5:0}, gf_u.word=9, w=9, x=8] [L20] COND FALSE !(0) VAL [\old(x)=8, w=9, x=8] [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L40] COND TRUE exponent_less_127 == 128 [L42] RET return x + x; VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L66] EXPR round_float(x) VAL [round_float(x)=7, x=8] [L66] float res = round_float(x); [L69] CALL, EXPR isnan_float(res) VAL [\old(x)=7] [L55] RET return x != x; VAL [\old(x)=7, \result=0, x=7] [L69] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=7, x=8] [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() VAL [res=7, x=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 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=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-5eb3fea [2018-09-21 18:37:57,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:37:57,831 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:37:57,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:37:57,849 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:37:57,851 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:37:57,853 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:37:57,857 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:37:57,862 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:37:57,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:37:57,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:37:57,868 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:37:57,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:37:57,876 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:37:57,877 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:37:57,878 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:37:57,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:37:57,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:37:57,893 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:37:57,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:37:57,899 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:37:57,901 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:37:57,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:37:57,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:37:57,908 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:37:57,909 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:37:57,910 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:37:57,914 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:37:57,915 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:37:57,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:37:57,918 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:37:57,921 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:37:57,922 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:37:57,922 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:37:57,923 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:37:57,924 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:37:57,924 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:37:57,951 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:37:57,952 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:37:57,953 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:37:57,953 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:37:57,954 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:37:57,954 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:37:57,955 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:37:57,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:37:57,955 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:37:57,955 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:37:57,955 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:37:57,956 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:37:57,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:37:57,956 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:37:57,956 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:37:57,956 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:37:57,958 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:37:57,958 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:37:57,958 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:37:57,959 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:37:57,959 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:37:57,959 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:37:57,959 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:37:57,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:37:57,960 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:37:57,961 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:37:57,961 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:37:57,961 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:37:57,961 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:37:57,962 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:37:57,962 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:37:57,962 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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:37:58,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:37:58,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:37:58,037 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:37:58,039 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:37:58,039 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:37:58,040 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-09-21 18:37:58,420 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e5231e6/f73bccaeafff484ea2531e5f6d6c658d/FLAGae7957365 [2018-09-21 18:37:58,597 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:37:58,598 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1031_true-unreach-call.c [2018-09-21 18:37:58,606 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e5231e6/f73bccaeafff484ea2531e5f6d6c658d/FLAGae7957365 [2018-09-21 18:37:58,634 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e5231e6/f73bccaeafff484ea2531e5f6d6c658d [2018-09-21 18:37:58,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:37:58,646 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:37:58,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:58,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:37:58,658 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:37:58,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:58,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ade425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58, skipping insertion in model container [2018-09-21 18:37:58,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:58,677 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:37:58,917 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:58,935 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:37:58,951 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:58,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58 WrapperNode [2018-09-21 18:37:58,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:58,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:37:58,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:37:58,991 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:37:59,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:59,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:59,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:59,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:59,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:59,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:59,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (1/1) ... [2018-09-21 18:37:59,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:37:59,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:37:59,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:37:59,057 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:37:59,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (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 [2018-09-21 18:37:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:37:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:37:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-09-21 18:37:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:37:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:37:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:37:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-09-21 18:37:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:37:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:37:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:37:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:37:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:37:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:37:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:37:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:37:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:37:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:37:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:37:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:37:59,618 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:59,661 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:59,768 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:37:59,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:59 BoogieIcfgContainer [2018-09-21 18:37:59,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:37:59,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:37:59,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:37:59,774 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:37:59,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:37:58" (1/3) ... [2018-09-21 18:37:59,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555661c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:59, skipping insertion in model container [2018-09-21 18:37:59,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:58" (2/3) ... [2018-09-21 18:37:59,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555661c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:59, skipping insertion in model container [2018-09-21 18:37:59,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:59" (3/3) ... [2018-09-21 18:37:59,778 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031_true-unreach-call.c [2018-09-21 18:37:59,787 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:37:59,795 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:37:59,841 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:37:59,841 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:37:59,842 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:37:59,842 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:37:59,842 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:37:59,842 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:37:59,843 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:37:59,843 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:37:59,843 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:37:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-09-21 18:37:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:37:59,894 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:59,895 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:59,898 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1468538689, now seen corresponding path program 1 times [2018-09-21 18:37:59,909 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:59,909 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 [2018-09-21 18:37:59,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:00,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:00,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:00,020 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:00,034 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:00,035 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:38:00,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:38:00,054 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:38:00,055 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:00,058 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-09-21 18:38:00,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:00,078 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-09-21 18:38:00,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:38:00,080 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:38:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:00,091 INFO L225 Difference]: With dead ends: 49 [2018-09-21 18:38:00,091 INFO L226 Difference]: Without dead ends: 45 [2018-09-21 18:38:00,093 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:00,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-09-21 18:38:00,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-09-21 18:38:00,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-21 18:38:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2018-09-21 18:38:00,134 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 21 [2018-09-21 18:38:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:00,135 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2018-09-21 18:38:00,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:38:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2018-09-21 18:38:00,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:38:00,137 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:00,137 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:00,138 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:00,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1602380168, now seen corresponding path program 1 times [2018-09-21 18:38:00,139 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:00,139 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:00,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:00,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:01,263 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:01,275 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:01,276 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:01,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:01,278 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:01,278 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:01,279 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 9 states. [2018-09-21 18:38:01,830 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:38:03,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:03,144 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2018-09-21 18:38:03,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:38:03,145 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 18:38:03,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:03,148 INFO L225 Difference]: With dead ends: 52 [2018-09-21 18:38:03,148 INFO L226 Difference]: Without dead ends: 47 [2018-09-21 18:38:03,149 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:38:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-21 18:38:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2018-09-21 18:38:03,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-21 18:38:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-09-21 18:38:03,161 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 30 [2018-09-21 18:38:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:03,162 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-09-21 18:38:03,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-09-21 18:38:03,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:38:03,164 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:03,164 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:03,164 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:03,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1798893673, now seen corresponding path program 1 times [2018-09-21 18:38:03,166 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:03,166 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 [2018-09-21 18:38:03,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:03,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:03,484 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:03,496 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:03,496 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:03,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:03,497 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:03,497 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:03,499 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 9 states. [2018-09-21 18:38:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:04,131 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-09-21 18:38:04,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:38:04,132 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 18:38:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:04,134 INFO L225 Difference]: With dead ends: 50 [2018-09-21 18:38:04,134 INFO L226 Difference]: Without dead ends: 44 [2018-09-21 18:38:04,135 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:38:04,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-21 18:38:04,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-21 18:38:04,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-21 18:38:04,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2018-09-21 18:38:04,143 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 30 [2018-09-21 18:38:04,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:04,144 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2018-09-21 18:38:04,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2018-09-21 18:38:04,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:38:04,145 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:04,146 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] [2018-09-21 18:38:04,147 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:04,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1268109596, now seen corresponding path program 1 times [2018-09-21 18:38:04,149 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:04,149 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:38:04,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:04,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:04,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:38:04,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:38:04,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:04,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:04,325 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:04,326 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:38:04,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:38:04,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:38:04,368 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:04,371 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:04,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:04,376 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:38:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:04,622 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:04,637 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:04,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:04,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:04,639 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:04,639 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:04,640 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 9 states. [2018-09-21 18:38:05,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:05,683 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-09-21 18:38:05,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:38:05,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:38:05,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:05,686 INFO L225 Difference]: With dead ends: 36 [2018-09-21 18:38:05,686 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:38:05,686 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:38:05,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:38:05,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:38:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:38:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:38:05,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-09-21 18:38:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:05,688 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:38:05,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:38:05,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:38:05,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:38:05 BoogieIcfgContainer [2018-09-21 18:38:05,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:38:05,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:38:05,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:38:05,695 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:38:05,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:59" (3/4) ... [2018-09-21 18:38:05,700 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:38:05,707 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:38:05,707 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:38:05,707 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-09-21 18:38:05,708 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:38:05,714 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:38:05,714 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-09-21 18:38:05,714 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:38:05,788 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:38:05,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:38:05,790 INFO L168 Benchmark]: Toolchain (without parser) took 7146.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 954.6 MB in the beginning and 946.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 151.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:05,791 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:38:05,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.55 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:05,792 INFO L168 Benchmark]: Boogie Preprocessor took 65.59 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:38:05,793 INFO L168 Benchmark]: RCFGBuilder took 712.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:05,794 INFO L168 Benchmark]: TraceAbstraction took 5923.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.6 MB in the end (delta: 156.0 MB). Peak memory consumption was 156.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:05,795 INFO L168 Benchmark]: Witness Printer took 94.37 ms. Allocated memory is still 1.2 GB. Free memory was 953.6 MB in the beginning and 946.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:05,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.55 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.59 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 712.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5923.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.6 MB in the end (delta: 156.0 MB). Peak memory consumption was 156.0 MB. Max. memory is 11.5 GB. * Witness Printer took 94.37 ms. Allocated memory is still 1.2 GB. Free memory was 953.6 MB in the beginning and 946.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 5.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 163 SDtfs, 74 SDslu, 640 SDs, 0 SdLazy, 187 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 119 ConstructedInterpolants, 16 QuantifiedInterpolants, 25014 SizeOfPredicates, 16 NumberOfNonLiveVariables, 250 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...