/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092d_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_1092d_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 b88866a66e040da6249cd5acf77993c03d3c500f --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_1092d_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 b88866a66e040da6249cd5acf77993c03d3c500f --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 18:38:51,757 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:38:51,760 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:38:51,779 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:38:51,780 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:38:51,781 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:38:51,783 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:38:51,786 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:38:51,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:38:51,795 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:38:51,796 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:38:51,799 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:38:51,800 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:38:51,803 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:38:51,806 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:38:51,808 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:38:51,808 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:38:51,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:38:51,816 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:38:51,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:38:51,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:38:51,824 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:38:51,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:38:51,831 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:38:51,831 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:38:51,832 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:38:51,833 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:38:51,834 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:38:51,836 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:38:51,838 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:38:51,839 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:38:51,840 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:38:51,841 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:38:51,841 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:38:51,843 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:38:51,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:38:51,845 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:38:51,863 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:38:51,863 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:38:51,864 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:38:51,865 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:38:51,865 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:38:51,866 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:38:51,866 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:38:51,866 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:38:51,866 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:38:51,867 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:38:51,867 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:38:51,868 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:38:51,868 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:38:51,868 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:38:51,868 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:38:51,868 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:38:51,868 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:38:51,869 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:38:51,869 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:38:51,869 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:38:51,869 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:38:51,871 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:38:51,871 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:38:51,871 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:38:51,871 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:38:51,872 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:38:51,872 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:38:51,872 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:38:51,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:38:51,873 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 -> b88866a66e040da6249cd5acf77993c03d3c500f 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 18:38:51,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:38:51,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:38:51,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:38:51,979 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:38:51,980 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:38:51,980 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-09-21 18:38:52,333 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd2df22b/075830b15399499c93b84647e53f948e/FLAG25ed8cb26 [2018-09-21 18:38:52,499 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:38:52,500 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-09-21 18:38:52,506 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd2df22b/075830b15399499c93b84647e53f948e/FLAG25ed8cb26 [2018-09-21 18:38:52,530 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd2df22b/075830b15399499c93b84647e53f948e [2018-09-21 18:38:52,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:38:52,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:38:52,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:52,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:38:52,552 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:38:52,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df3bb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52, skipping insertion in model container [2018-09-21 18:38:52,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,570 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:38:52,808 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:52,835 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:38:52,865 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:52,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52 WrapperNode [2018-09-21 18:38:52,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:52,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:38:52,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:38:52,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:38:52,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (1/1) ... [2018-09-21 18:38:52,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:38:52,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:38:52,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:38:52,996 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:38:52,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (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 18:38:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:38:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:38:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-09-21 18:38:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:38:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:38:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:38:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-09-21 18:38:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:38:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:38:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:38:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:38:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:38:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:38:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:38:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:38:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:38:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:38:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:38:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:38:53,782 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:38:53,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:53 BoogieIcfgContainer [2018-09-21 18:38:53,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:38:53,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:38:53,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:38:53,788 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:38:53,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:38:52" (1/3) ... [2018-09-21 18:38:53,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbefe08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:53, skipping insertion in model container [2018-09-21 18:38:53,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:52" (2/3) ... [2018-09-21 18:38:53,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbefe08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:53, skipping insertion in model container [2018-09-21 18:38:53,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:53" (3/3) ... [2018-09-21 18:38:53,794 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092d_true-unreach-call.c [2018-09-21 18:38:53,804 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:38:53,813 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:38:53,860 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:38:53,861 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:38:53,861 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:38:53,862 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:38:53,862 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:38:53,862 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:38:53,863 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:38:53,863 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:38:53,863 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:38:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-09-21 18:38:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-21 18:38:53,908 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:53,910 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] [2018-09-21 18:38:53,917 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:53,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1270031414, now seen corresponding path program 1 times [2018-09-21 18:38:53,926 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:38:53,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:38:53,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:53,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:53,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:54,088 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 18:38:54,097 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:54,097 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:38:54,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:38:54,119 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:38:54,120 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:54,123 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-09-21 18:38:54,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:54,143 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2018-09-21 18:38:54,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:38:54,145 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-21 18:38:54,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:54,156 INFO L225 Difference]: With dead ends: 66 [2018-09-21 18:38:54,156 INFO L226 Difference]: Without dead ends: 62 [2018-09-21 18:38:54,158 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 18:38:54,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-21 18:38:54,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-09-21 18:38:54,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-21 18:38:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2018-09-21 18:38:54,200 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 24 [2018-09-21 18:38:54,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:54,200 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-09-21 18:38:54,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:38:54,200 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2018-09-21 18:38:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:38:54,202 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:54,202 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 18:38:54,203 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:54,203 INFO L82 PathProgramCache]: Analyzing trace with hash 756657447, now seen corresponding path program 1 times [2018-09-21 18:38:54,203 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:38:54,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:38:54,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:54,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:54,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:38:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:38:54,393 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:38:54,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:38:54 BoogieIcfgContainer [2018-09-21 18:38:54,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:38:54,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:38:54,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:38:54,432 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:38:54,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:53" (3/4) ... [2018-09-21 18:38:54,437 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:38:54,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:38:54,438 INFO L168 Benchmark]: Toolchain (without parser) took 1901.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -112.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:54,440 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 18:38:54,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.32 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. [2018-09-21 18:38:54,442 INFO L168 Benchmark]: Boogie Preprocessor took 68.35 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 18:38:54,442 INFO L168 Benchmark]: RCFGBuilder took 787.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:54,443 INFO L168 Benchmark]: TraceAbstraction took 647.67 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:54,444 INFO L168 Benchmark]: Witness Printer took 5.19 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 18:38:54,448 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 384.32 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 68.35 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 787.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 647.67 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.19 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: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450950, huge_ceil=1000000000000000000000000000000] [L76] float x = -1.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, x=6442450952] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450952, gf_u={6442450945:0}, huge_ceil=1000000000000000000000000000000, x=6442450952] [L18] FCALL gf_u.value = (x) VAL [\old(x)=6442450952, gf_u={6442450945:0}, huge_ceil=1000000000000000000000000000000, x=6442450952] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=6442450952, gf_u={6442450945:0}, gf_u.word=6442450944, huge_ceil=1000000000000000000000000000000, x=6442450952] [L19] (i0) = gf_u.word VAL [\old(x)=6442450952, gf_u={6442450945:0}, gf_u.word=6442450944, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450952] [L19] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=6442450948, \old(x)=6442450952, gf_u={6442450945:0}, gf_u.word=6442450944, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450952] [L20] COND FALSE !(0) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450952] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=6442450951, huge_ceil=1000000000000000000000000000000, x=6442450952] [L77] float res = ceil_float(x); [L80] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450951, huge_ceil=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=6442450951, huge_ceil=1000000000000000000000000000000, x=6442450951] [L60] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450947:0}, huge_ceil=1000000000000000000000000000000, x=6442450951] [L61] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450947:0}, huge_ceil=1000000000000000000000000000000, x=6442450951] [L62] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450947:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, x=6442450951] [L62] (ix) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450947:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, ix=3, x=6442450951] [L62] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450949, \old(x)=6442450951, gf_u={6442450947:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, ix=3, x=6442450951] [L63] COND FALSE !(0) VAL [\old(x)=6442450951, huge_ceil=1000000000000000000000000000000, ix=3, x=6442450951] [L64] ix &= 0x7fffffff [L65] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6442450951, \result=0, huge_ceil=1000000000000000000000000000000, ix=0, x=6442450951] [L80] EXPR isinf_float(res) VAL [huge_ceil=1000000000000000000000000000000, isinf_float(res)=0, res=6442450951, x=6442450952] [L80] COND TRUE !isinf_float(res) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450951, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 66 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 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=66occurred 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, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 18:38:56,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:38:56,873 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:38:56,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:38:56,886 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:38:56,888 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:38:56,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:38:56,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:38:56,893 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:38:56,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:38:56,895 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:38:56,895 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:38:56,896 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:38:56,897 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:38:56,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:38:56,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:38:56,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:38:56,903 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:38:56,905 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:38:56,907 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:38:56,908 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:38:56,910 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:38:56,912 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:38:56,913 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:38:56,913 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:38:56,914 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:38:56,916 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:38:56,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:38:56,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:38:56,919 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:38:56,919 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:38:56,920 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:38:56,920 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:38:56,920 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:38:56,921 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:38:56,922 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:38:56,922 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:38:56,938 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:38:56,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:38:56,939 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:38:56,939 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:38:56,940 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:38:56,940 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:38:56,940 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:38:56,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:38:56,941 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:38:56,941 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:38:56,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:38:56,941 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:38:56,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:38:56,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:38:56,942 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:38:56,942 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:38:56,942 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:38:56,943 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:38:56,944 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:38:56,945 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:38:56,945 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:38:56,945 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:38:56,945 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:38:56,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:38:56,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:38:56,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:38:56,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:38:56,948 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:38:56,948 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:38:56,948 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:38:56,948 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:38:56,950 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 -> b88866a66e040da6249cd5acf77993c03d3c500f 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 18:38:57,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:38:57,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:38:57,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:38:57,060 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:38:57,061 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:38:57,062 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-09-21 18:38:57,453 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddf74a22/9e1ac92fdef44e4e82d56a22c0cc9592/FLAGcd396789a [2018-09-21 18:38:57,645 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:38:57,646 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-09-21 18:38:57,659 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddf74a22/9e1ac92fdef44e4e82d56a22c0cc9592/FLAGcd396789a [2018-09-21 18:38:57,680 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddf74a22/9e1ac92fdef44e4e82d56a22c0cc9592 [2018-09-21 18:38:57,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:38:57,691 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:38:57,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:57,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:38:57,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:38:57,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:57" (1/1) ... [2018-09-21 18:38:57,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef5c2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:57, skipping insertion in model container [2018-09-21 18:38:57,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:57" (1/1) ... [2018-09-21 18:38:57,724 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:38:57,977 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:58,004 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:38:58,034 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:58,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58 WrapperNode [2018-09-21 18:38:58,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:58,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:38:58,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:38:58,078 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:38:58,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (1/1) ... [2018-09-21 18:38:58,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (1/1) ... [2018-09-21 18:38:58,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (1/1) ... [2018-09-21 18:38:58,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (1/1) ... [2018-09-21 18:38:58,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (1/1) ... [2018-09-21 18:38:58,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (1/1) ... [2018-09-21 18:38:58,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (1/1) ... [2018-09-21 18:38:58,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:38:58,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:38:58,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:38:58,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:38:58,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (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 18:38:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:38:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:38:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-09-21 18:38:58,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:38:58,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:38:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:38:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-09-21 18:38:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:38:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:38:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:38:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:38:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:38:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:38:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:38:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:38:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:38:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:38:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:38:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:38:58,763 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:58,780 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:59,164 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:59,186 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:59,219 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:38:59,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:59 BoogieIcfgContainer [2018-09-21 18:38:59,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:38:59,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:38:59,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:38:59,226 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:38:59,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:38:57" (1/3) ... [2018-09-21 18:38:59,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b45b101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:59, skipping insertion in model container [2018-09-21 18:38:59,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:58" (2/3) ... [2018-09-21 18:38:59,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b45b101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:59, skipping insertion in model container [2018-09-21 18:38:59,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:59" (3/3) ... [2018-09-21 18:38:59,233 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092d_true-unreach-call.c [2018-09-21 18:38:59,245 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:38:59,254 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:38:59,296 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:38:59,296 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:38:59,297 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:38:59,297 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:38:59,297 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:38:59,297 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:38:59,297 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:38:59,298 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:38:59,298 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:38:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-09-21 18:38:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:38:59,334 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:59,335 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:59,338 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:59,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1579053841, now seen corresponding path program 1 times [2018-09-21 18:38:59,352 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:59,353 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 18:38:59,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:59,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:59,478 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 18:38:59,478 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:59,497 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:59,497 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:38:59,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:38:59,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:38:59,514 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:59,516 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-09-21 18:38:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:59,537 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2018-09-21 18:38:59,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:38:59,538 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:38:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:59,550 INFO L225 Difference]: With dead ends: 65 [2018-09-21 18:38:59,551 INFO L226 Difference]: Without dead ends: 61 [2018-09-21 18:38:59,553 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 18:38:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-21 18:38:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-21 18:38:59,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-21 18:38:59,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2018-09-21 18:38:59,608 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 23 [2018-09-21 18:38:59,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:59,608 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2018-09-21 18:38:59,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:38:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2018-09-21 18:38:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:38:59,611 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:59,611 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:59,612 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:59,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1192456100, now seen corresponding path program 1 times [2018-09-21 18:38:59,613 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:59,614 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 18:38:59,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:59,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:00,471 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 18:39:00,483 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 18:39:00,484 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:00,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:00,505 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 18:39:00,506 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:00,648 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 18:39:00,659 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 18:39:00,660 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:00,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:00,665 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 18:39:00,666 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:01,366 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 18:39:01,486 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 18:39:01,486 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:01,501 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:01,502 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:39:01,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:39:01,505 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:39:01,505 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:39:01,506 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 13 states. [2018-09-21 18:39:02,230 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:39:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:05,196 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2018-09-21 18:39:05,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:39:05,197 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-09-21 18:39:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:05,200 INFO L225 Difference]: With dead ends: 68 [2018-09-21 18:39:05,201 INFO L226 Difference]: Without dead ends: 63 [2018-09-21 18:39:05,202 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-09-21 18:39:05,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-21 18:39:05,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-09-21 18:39:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-21 18:39:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2018-09-21 18:39:05,215 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 41 [2018-09-21 18:39:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:05,216 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2018-09-21 18:39:05,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:39:05,217 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2018-09-21 18:39:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:39:05,218 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:05,219 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:05,219 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:05,220 INFO L82 PathProgramCache]: Analyzing trace with hash -981105187, now seen corresponding path program 1 times [2018-09-21 18:39:05,220 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:05,221 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 18:39:05,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:05,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:05,331 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 18:39:05,335 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 18:39:05,336 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:05,340 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:05,354 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 18:39:05,355 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:05,392 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 18:39:05,397 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 18:39:05,397 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:05,400 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:05,406 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 18:39:05,406 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:05,566 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 18:39:05,566 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:05,577 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:05,578 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:39:05,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:39:05,579 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:39:05,579 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:39:05,579 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 9 states. [2018-09-21 18:39:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:07,196 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2018-09-21 18:39:07,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:39:07,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-21 18:39:07,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:07,200 INFO L225 Difference]: With dead ends: 92 [2018-09-21 18:39:07,200 INFO L226 Difference]: Without dead ends: 76 [2018-09-21 18:39:07,200 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:39:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-21 18:39:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 60. [2018-09-21 18:39:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-21 18:39:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-09-21 18:39:07,208 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 41 [2018-09-21 18:39:07,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:07,208 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-09-21 18:39:07,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:39:07,209 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-09-21 18:39:07,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:39:07,211 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:07,211 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 18:39:07,212 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:07,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1790384710, now seen corresponding path program 1 times [2018-09-21 18:39:07,212 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:07,213 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 [2018-09-21 18:39:07,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:07,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:07,309 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 18:39:07,316 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 18:39:07,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:07,321 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:07,332 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 18:39:07,332 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:07,353 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 18:39:07,358 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 18:39:07,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:07,365 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:07,372 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 18:39:07,372 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:07,512 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 18:39:07,512 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:07,522 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:07,523 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:39:07,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:39:07,523 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:39:07,524 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:39:07,524 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 9 states. [2018-09-21 18:39:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:09,059 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2018-09-21 18:39:09,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:39:09,063 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:39:09,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:09,063 INFO L225 Difference]: With dead ends: 57 [2018-09-21 18:39:09,063 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:39:09,064 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:39:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:39:09,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:39:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:39:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:39:09,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-09-21 18:39:09,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:09,065 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:39:09,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:39:09,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:39:09,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:39:09,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:39:09 BoogieIcfgContainer [2018-09-21 18:39:09,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:39:09,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:39:09,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:39:09,072 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:39:09,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:59" (3/4) ... [2018-09-21 18:39:09,076 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:39:09,083 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:39:09,083 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:39:09,083 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:39:09,084 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-09-21 18:39:09,090 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-09-21 18:39:09,090 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-21 18:39:09,090 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:39:09,160 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:39:09,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:39:09,161 INFO L168 Benchmark]: Toolchain (without parser) took 11475.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.8 MB in the beginning and 845.0 MB in the end (delta: 106.8 MB). Peak memory consumption was 242.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:09,163 INFO L168 Benchmark]: CDTParser took 0.21 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 18:39:09,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.20 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 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. [2018-09-21 18:39:09,164 INFO L168 Benchmark]: Boogie Preprocessor took 76.39 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 934.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:09,165 INFO L168 Benchmark]: RCFGBuilder took 1066.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:09,166 INFO L168 Benchmark]: TraceAbstraction took 9849.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.9 MB in the end (delta: 246.2 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:09,167 INFO L168 Benchmark]: Witness Printer took 88.57 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 845.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:09,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 384.20 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 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 76.39 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 934.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1066.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9849.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.9 MB in the end (delta: 246.2 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. * Witness Printer took 88.57 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 845.0 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: 81]: 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, 65 locations, 1 error locations. SAFE Result, 9.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 6.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 211 SDtfs, 285 SDslu, 943 SDs, 0 SdLazy, 451 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 143 ConstructedInterpolants, 11 QuantifiedInterpolants, 29030 SizeOfPredicates, 26 NumberOfNonLiveVariables, 320 ConjunctsInSsa, 36 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...