/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0480_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/double_req_bl_0480_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 d52986c59e68ce8d16e7f783a8a5ec11939c887c --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/double_req_bl_0480_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 d52986c59e68ce8d16e7f783a8a5ec11939c887c --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 17:44:57,607 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:44:57,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:44:57,624 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:44:57,626 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:44:57,627 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:44:57,629 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:44:57,633 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:44:57,636 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:44:57,638 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:44:57,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:44:57,642 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:44:57,644 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:44:57,647 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:44:57,659 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:44:57,660 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:44:57,661 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:44:57,663 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:44:57,667 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:44:57,670 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:44:57,674 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:44:57,676 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:44:57,681 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:44:57,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:44:57,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:44:57,686 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:44:57,689 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:44:57,690 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:44:57,691 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:44:57,694 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:44:57,695 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:44:57,695 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:44:57,696 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:44:57,696 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:44:57,699 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:44:57,701 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:44:57,703 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:44:57,725 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:44:57,725 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:44:57,726 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:44:57,726 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:44:57,727 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:44:57,728 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:44:57,728 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:44:57,728 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:44:57,728 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:44:57,728 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:44:57,729 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:44:57,729 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:44:57,729 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:44:57,729 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:44:57,729 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:44:57,731 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:44:57,731 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:44:57,731 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:44:57,731 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:44:57,732 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:44:57,732 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:44:57,732 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:44:57,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:44:57,733 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:44:57,733 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:44:57,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:44:57,733 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:44:57,734 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:44:57,735 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:44:57,735 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 -> d52986c59e68ce8d16e7f783a8a5ec11939c887c 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 17:44:57,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:44:57,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:44:57,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:44:57,806 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:44:57,806 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:44:57,807 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0480_true-unreach-call.c [2018-09-21 17:44:58,166 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3198455d/40e6e6209cc448ada42ede64c236a8a3/FLAG60850b16f [2018-09-21 17:44:58,344 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:44:58,346 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0480_true-unreach-call.c [2018-09-21 17:44:58,359 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3198455d/40e6e6209cc448ada42ede64c236a8a3/FLAG60850b16f [2018-09-21 17:44:58,375 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3198455d/40e6e6209cc448ada42ede64c236a8a3 [2018-09-21 17:44:58,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:44:58,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:44:58,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:44:58,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:44:58,389 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:44:58,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53458ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58, skipping insertion in model container [2018-09-21 17:44:58,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,405 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:44:58,709 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:44:58,727 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:44:58,781 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:44:58,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58 WrapperNode [2018-09-21 17:44:58,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:44:58,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:44:58,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:44:58,827 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:44:58,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (1/1) ... [2018-09-21 17:44:58,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:44:58,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:44:58,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:44:58,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:44:58,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (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 17:44:59,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:44:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:44:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 17:44:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:44:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acos [2018-09-21 17:44:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:44:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:44:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 17:44:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:44:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 17:44:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 17:44:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:44:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:44:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 17:44:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 17:44:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acos [2018-09-21 17:44:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:44:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:44:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:44:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 17:44:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 17:45:00,330 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:45:00,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:45:00 BoogieIcfgContainer [2018-09-21 17:45:00,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:45:00,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:45:00,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:45:00,335 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:45:00,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:44:58" (1/3) ... [2018-09-21 17:45:00,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cecbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:45:00, skipping insertion in model container [2018-09-21 17:45:00,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:44:58" (2/3) ... [2018-09-21 17:45:00,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cecbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:45:00, skipping insertion in model container [2018-09-21 17:45:00,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:45:00" (3/3) ... [2018-09-21 17:45:00,339 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480_true-unreach-call.c [2018-09-21 17:45:00,347 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:45:00,356 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:45:00,397 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:45:00,398 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:45:00,398 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:45:00,398 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:45:00,398 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:45:00,398 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:45:00,399 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:45:00,399 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:45:00,399 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:45:00,422 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-09-21 17:45:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 17:45:00,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:45:00,435 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:45:00,437 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:45:00,443 INFO L82 PathProgramCache]: Analyzing trace with hash 193770739, now seen corresponding path program 1 times [2018-09-21 17:45:00,445 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:45:00,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:45:00,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:45:00,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:45:00,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:45:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:45:00,618 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 17:45:00,621 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:45:00,621 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:45:00,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:45:00,638 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:45:00,639 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:45:00,642 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-09-21 17:45:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:45:00,681 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2018-09-21 17:45:00,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:45:00,683 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 17:45:00,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:45:00,701 INFO L225 Difference]: With dead ends: 147 [2018-09-21 17:45:00,701 INFO L226 Difference]: Without dead ends: 143 [2018-09-21 17:45:00,703 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 17:45:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-09-21 17:45:00,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-09-21 17:45:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-09-21 17:45:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2018-09-21 17:45:00,771 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 19 [2018-09-21 17:45:00,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:45:00,772 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2018-09-21 17:45:00,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:45:00,772 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2018-09-21 17:45:00,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 17:45:00,775 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:45:00,775 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] [2018-09-21 17:45:00,775 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:45:00,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1652984249, now seen corresponding path program 1 times [2018-09-21 17:45:00,776 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:45:00,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:45:00,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:45:00,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:45:00,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:45:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:45:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:45:00,921 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 17:45:00,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:45:00 BoogieIcfgContainer [2018-09-21 17:45:00,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:45:00,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:45:00,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:45:00,973 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:45:00,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:45:00" (3/4) ... [2018-09-21 17:45:00,979 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 17:45:00,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:45:00,980 INFO L168 Benchmark]: Toolchain (without parser) took 2601.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -118.0 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:45:00,988 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:45:00,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:45:00,990 INFO L168 Benchmark]: Boogie Preprocessor took 95.04 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:45:00,991 INFO L168 Benchmark]: RCFGBuilder took 1409.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:45:00,993 INFO L168 Benchmark]: TraceAbstraction took 641.04 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-09-21 17:45:00,996 INFO L168 Benchmark]: Witness Printer took 6.22 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 17:45:01,002 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 444.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 95.04 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1409.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 641.04 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.22 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: 237]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 145, overapproximation of bitwiseAnd at line 163, overapproximation of someBinaryArithmeticDOUBLEoperation at line 181, overapproximation of someBinaryDOUBLEComparisonOperation at line 236. Possible FailurePath: [L28] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L140-L153] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [\old(one_acos)=6442450961, \old(one_sqrt)=6442450952, \old(pi)=6442450954, \old(pi)=6442450964, \old(pi)=6442450951, \old(pS0_acos)=6442450945, \old(pS1_acos)=6442450962, \old(pS2_acos)=6442450963, \old(pS3_acos)=6442450948, \old(pS4_acos)=6442450953, \old(pS5_acos)=6442450965, \old(qS1_acos)=6442450947, \old(qS2_acos)=6442450955, \old(qS3_acos)=6442450958, \old(qS4_acos)=6442450949, \old(tiny_sqrt)=6442450959, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L232] double x = 1.0; VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L233] CALL, EXPR __ieee754_acos(x) VAL [\old(x)=1, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L156] double z, p, q, r, w, s, c, df; [L157] __int32_t hx, ix; VAL [\old(x)=1, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L159] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=1, gh_u={6442450956:0}, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L160] FCALL gh_u.value = (x) VAL [\old(x)=1, gh_u={6442450956:0}, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L161] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=1, gh_u={6442450956:0}, gh_u.parts.msw=6442450944, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L161] (hx) = gh_u.parts.msw VAL [\old(x)=1, gh_u={6442450956:0}, gh_u.parts.msw=6442450944, hx=-2147483648, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L161] FCALL (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=6442450960, \old(x)=1, gh_u={6442450956:0}, gh_u.parts.msw=6442450944, hx=-2147483648, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L162] COND FALSE !(0) VAL [\old(x)=1, hx=-2147483648, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L163] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=-2147483648, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L164] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=1, hx=-2147483648, ix=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L179] COND TRUE ix < 0x3fe00000 VAL [\old(x)=1, hx=-2147483648, ix=0, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L180] COND TRUE ix <= 0x3c600000 [L181] RET return pio2_hi_acos + pio2_lo_acos; VAL [\old(x)=1, hx=-2147483648, ix=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L233] EXPR __ieee754_acos(x) VAL [__ieee754_acos(x)=6442450950, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L233] double res = __ieee754_acos(x); [L236] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=6442450950, res == 0.0 && __signbit_double(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L236] COND FALSE, EXPR !(res == 0.0 && __signbit_double(res) == 0) VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=6442450950, res == 0.0 && __signbit_double(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L236] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L237] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=6442450950, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 147 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 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=147occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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 17:45:03,318 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:45:03,320 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:45:03,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:45:03,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:45:03,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:45:03,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:45:03,338 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:45:03,340 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:45:03,341 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:45:03,342 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:45:03,342 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:45:03,343 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:45:03,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:45:03,346 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:45:03,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:45:03,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:45:03,350 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:45:03,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:45:03,354 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:45:03,355 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:45:03,356 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:45:03,359 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:45:03,360 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:45:03,360 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:45:03,361 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:45:03,363 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:45:03,364 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:45:03,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:45:03,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:45:03,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:45:03,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:45:03,368 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:45:03,368 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:45:03,369 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:45:03,370 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:45:03,371 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:45:03,388 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:45:03,388 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:45:03,389 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:45:03,389 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:45:03,390 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:45:03,391 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:45:03,391 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:45:03,391 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:45:03,391 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:45:03,392 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:45:03,392 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:45:03,392 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:45:03,393 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:45:03,393 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:45:03,393 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:45:03,393 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:45:03,393 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:45:03,394 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:45:03,394 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:45:03,394 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:45:03,394 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:45:03,395 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:45:03,395 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:45:03,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:45:03,395 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:45:03,396 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:45:03,396 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:45:03,396 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:45:03,396 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:45:03,396 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:45:03,398 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:45:03,398 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 -> d52986c59e68ce8d16e7f783a8a5ec11939c887c 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 17:45:03,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:45:03,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:45:03,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:45:03,477 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:45:03,478 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:45:03,479 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0480_true-unreach-call.c [2018-09-21 17:45:03,828 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3efc968/9df769dbf4fd480992cf65214729bc8e/FLAGe22d60c23 [2018-09-21 17:45:03,993 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:45:03,994 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0480_true-unreach-call.c [2018-09-21 17:45:04,010 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3efc968/9df769dbf4fd480992cf65214729bc8e/FLAGe22d60c23 [2018-09-21 17:45:04,027 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3efc968/9df769dbf4fd480992cf65214729bc8e [2018-09-21 17:45:04,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:45:04,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:45:04,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:45:04,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:45:04,043 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:45:04,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bbd35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04, skipping insertion in model container [2018-09-21 17:45:04,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,061 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:45:04,419 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:45:04,450 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:45:04,521 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:45:04,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04 WrapperNode [2018-09-21 17:45:04,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:45:04,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:45:04,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:45:04,583 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:45:04,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (1/1) ... [2018-09-21 17:45:04,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:45:04,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:45:04,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:45:04,659 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:45:04,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (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 17:45:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:45:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:45:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 17:45:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:45:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acos [2018-09-21 17:45:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:45:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:45:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 17:45:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:45:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:45:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:45:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:45:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:45:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:45:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:45:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acos [2018-09-21 17:45:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:45:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:45:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:45:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:45:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:45:05,119 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:05,145 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:05,210 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:05,235 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:16,522 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:19,565 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:19,578 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:19,792 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:19,855 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:19,921 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:45:23,443 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:45:23,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:45:23 BoogieIcfgContainer [2018-09-21 17:45:23,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:45:23,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:45:23,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:45:23,448 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:45:23,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:45:04" (1/3) ... [2018-09-21 17:45:23,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecc6c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:45:23, skipping insertion in model container [2018-09-21 17:45:23,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:45:04" (2/3) ... [2018-09-21 17:45:23,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecc6c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:45:23, skipping insertion in model container [2018-09-21 17:45:23,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:45:23" (3/3) ... [2018-09-21 17:45:23,452 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480_true-unreach-call.c [2018-09-21 17:45:23,460 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:45:23,467 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:45:23,515 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:45:23,516 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:45:23,516 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:45:23,519 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:45:23,519 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:45:23,519 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:45:23,520 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:45:23,520 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:45:23,520 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:45:23,539 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-09-21 17:45:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 17:45:23,552 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:45:23,553 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:45:23,556 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:45:23,561 INFO L82 PathProgramCache]: Analyzing trace with hash 193770739, now seen corresponding path program 1 times [2018-09-21 17:45:23,567 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:45:23,567 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 17:45:23,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:45:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:45:23,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:45:23,844 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 17:45:23,846 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:45:23,868 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:45:23,868 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:45:23,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:45:23,891 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:45:23,892 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:45:23,895 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-09-21 17:45:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:45:23,925 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2018-09-21 17:45:23,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:45:23,927 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 17:45:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:45:23,943 INFO L225 Difference]: With dead ends: 147 [2018-09-21 17:45:23,944 INFO L226 Difference]: Without dead ends: 143 [2018-09-21 17:45:23,946 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 17:45:23,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-09-21 17:45:23,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-09-21 17:45:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-09-21 17:45:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2018-09-21 17:45:24,005 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 19 [2018-09-21 17:45:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:45:24,006 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2018-09-21 17:45:24,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:45:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2018-09-21 17:45:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 17:45:24,007 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:45:24,008 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] [2018-09-21 17:45:24,008 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:45:24,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1652984249, now seen corresponding path program 1 times [2018-09-21 17:45:24,010 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:45:24,010 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 17:45:24,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:45:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:45:24,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:45:24,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 17:45:24,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:45:24,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:45:24,349 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:45:24,370 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:45:24,370 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:45:24,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 17:45:24,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 17:45:24,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:45:24,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:45:24,587 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:45:24,588 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:45:25,082 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 17:45:25,082 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:45:25,102 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:45:25,102 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:45:25,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:45:25,104 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:45:25,108 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:45:25,108 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand 9 states. [2018-09-21 17:45:25,515 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:45:26,477 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-21 17:45:40,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:45:40,963 INFO L93 Difference]: Finished difference Result 147 states and 173 transitions. [2018-09-21 17:45:40,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:45:40,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-21 17:45:40,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:45:40,971 INFO L225 Difference]: With dead ends: 147 [2018-09-21 17:45:40,971 INFO L226 Difference]: Without dead ends: 130 [2018-09-21 17:45:40,972 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:45:40,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-09-21 17:45:40,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2018-09-21 17:45:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-09-21 17:45:40,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2018-09-21 17:45:40,987 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 28 [2018-09-21 17:45:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:45:40,988 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2018-09-21 17:45:40,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:45:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2018-09-21 17:45:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 17:45:40,990 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:45:40,990 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] [2018-09-21 17:45:40,991 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:45:40,991 INFO L82 PathProgramCache]: Analyzing trace with hash -765480568, now seen corresponding path program 1 times [2018-09-21 17:45:40,992 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:45:40,993 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 17:45:40,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:45:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:45:45,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:45:45,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 17:45:45,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:45:45,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:45:45,559 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:45:45,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:45:45,575 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:45:45,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 17:45:45,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 17:45:45,633 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:45:45,636 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:45:45,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:45:45,649 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:45:45,858 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 17:45:45,858 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:45:45,940 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:45:45,940 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:45:45,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:45:45,941 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:45:45,941 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:45:45,942 INFO L87 Difference]: Start difference. First operand 128 states and 152 transitions. Second operand 9 states. [2018-09-21 17:45:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:45:59,535 INFO L93 Difference]: Finished difference Result 132 states and 155 transitions. [2018-09-21 17:45:59,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 17:45:59,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-21 17:45:59,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:45:59,538 INFO L225 Difference]: With dead ends: 132 [2018-09-21 17:45:59,538 INFO L226 Difference]: Without dead ends: 129 [2018-09-21 17:45:59,539 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:45:59,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-09-21 17:45:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2018-09-21 17:45:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-09-21 17:45:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2018-09-21 17:45:59,549 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 28 [2018-09-21 17:45:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:45:59,550 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2018-09-21 17:45:59,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:45:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2018-09-21 17:45:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 17:45:59,552 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:45:59,552 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] [2018-09-21 17:45:59,552 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:45:59,553 INFO L82 PathProgramCache]: Analyzing trace with hash -198046818, now seen corresponding path program 1 times [2018-09-21 17:45:59,554 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:45:59,554 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 17:45:59,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:46:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:46:00,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:46:00,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 17:46:00,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:46:00,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:00,591 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:00,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:00,785 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-21 17:46:00,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 17:46:00,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 17:46:00,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:00,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:01,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:01,025 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-21 17:46:01,277 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 12 treesize of output 9 [2018-09-21 17:46:01,284 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 9 treesize of output 8 [2018-09-21 17:46:01,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:01,295 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:01,332 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:01,333 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-21 17:46:01,421 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 16 treesize of output 12 [2018-09-21 17:46:01,427 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 12 treesize of output 4 [2018-09-21 17:46:01,427 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:01,433 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:01,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:01,463 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:29 [2018-09-21 17:46:01,936 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 17:46:01,936 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:46:01,955 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:46:01,956 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 17:46:01,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 17:46:01,958 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 17:46:01,958 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-09-21 17:46:01,958 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand 12 states. [2018-09-21 17:46:07,595 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-09-21 17:46:07,982 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-09-21 17:46:08,360 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-09-21 17:46:08,804 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-09-21 17:46:09,118 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-21 17:46:13,064 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-09-21 17:46:15,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:46:15,317 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2018-09-21 17:46:15,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 17:46:15,319 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-09-21 17:46:15,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:46:15,321 INFO L225 Difference]: With dead ends: 131 [2018-09-21 17:46:15,322 INFO L226 Difference]: Without dead ends: 129 [2018-09-21 17:46:15,322 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2018-09-21 17:46:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-09-21 17:46:15,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2018-09-21 17:46:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-09-21 17:46:15,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2018-09-21 17:46:15,332 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 37 [2018-09-21 17:46:15,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:46:15,333 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2018-09-21 17:46:15,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 17:46:15,333 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2018-09-21 17:46:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-21 17:46:15,335 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:46:15,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:46:15,335 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:46:15,336 INFO L82 PathProgramCache]: Analyzing trace with hash -975028367, now seen corresponding path program 1 times [2018-09-21 17:46:15,336 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:46:15,336 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 17:46:15,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:46:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:46:15,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:46:15,546 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 17:46:15,546 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:46:15,557 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:46:15,557 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-21 17:46:15,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-21 17:46:15,558 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-21 17:46:15,558 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-21 17:46:15,558 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 5 states. [2018-09-21 17:46:20,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:46:20,459 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2018-09-21 17:46:20,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-21 17:46:20,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-09-21 17:46:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:46:20,462 INFO L225 Difference]: With dead ends: 131 [2018-09-21 17:46:20,462 INFO L226 Difference]: Without dead ends: 131 [2018-09-21 17:46:20,467 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-21 17:46:20,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-09-21 17:46:20,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-09-21 17:46:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-09-21 17:46:20,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2018-09-21 17:46:20,486 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 38 [2018-09-21 17:46:20,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:46:20,487 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2018-09-21 17:46:20,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-21 17:46:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2018-09-21 17:46:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-21 17:46:20,489 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:46:20,490 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] [2018-09-21 17:46:20,490 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:46:20,490 INFO L82 PathProgramCache]: Analyzing trace with hash -87524686, now seen corresponding path program 1 times [2018-09-21 17:46:20,490 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:46:20,491 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 17:46:20,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:46:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:46:20,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:46:20,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 17:46:20,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:46:20,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:20,829 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:20,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:20,848 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:46:20,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 17:46:20,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 17:46:20,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:20,931 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:20,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:20,944 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:46:21,111 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 17:46:21,112 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:46:21,129 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:46:21,129 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 17:46:21,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 17:46:21,130 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 17:46:21,130 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:46:21,130 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 8 states. [2018-09-21 17:46:27,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:46:27,113 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2018-09-21 17:46:27,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 17:46:27,114 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-09-21 17:46:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:46:27,115 INFO L225 Difference]: With dead ends: 133 [2018-09-21 17:46:27,115 INFO L226 Difference]: Without dead ends: 131 [2018-09-21 17:46:27,116 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-21 17:46:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-09-21 17:46:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-09-21 17:46:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-09-21 17:46:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2018-09-21 17:46:27,122 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 38 [2018-09-21 17:46:27,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:46:27,123 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2018-09-21 17:46:27,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 17:46:27,123 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2018-09-21 17:46:27,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 17:46:27,126 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:46:27,126 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:46:27,127 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:46:27,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1195286252, now seen corresponding path program 1 times [2018-09-21 17:46:27,128 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:46:27,128 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 17:46:27,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:46:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:46:31,994 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:46:32,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 17:46:32,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:46:32,039 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:32,045 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:32,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:32,062 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:46:32,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 17:46:32,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 17:46:32,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:32,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:32,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:32,125 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:46:32,521 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 17:46:32,521 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:46:32,602 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:46:32,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:46:32,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:46:32,603 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:46:32,603 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:46:32,604 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 9 states. [2018-09-21 17:46:33,172 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:46:33,663 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-21 17:46:37,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:46:37,776 INFO L93 Difference]: Finished difference Result 129 states and 148 transitions. [2018-09-21 17:46:37,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 17:46:37,777 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-09-21 17:46:37,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:46:37,778 INFO L225 Difference]: With dead ends: 129 [2018-09-21 17:46:37,778 INFO L226 Difference]: Without dead ends: 55 [2018-09-21 17:46:37,779 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:46:37,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-09-21 17:46:37,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-09-21 17:46:37,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-21 17:46:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 54 transitions. [2018-09-21 17:46:37,783 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 54 transitions. Word has length 48 [2018-09-21 17:46:37,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:46:37,783 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 54 transitions. [2018-09-21 17:46:37,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:46:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 54 transitions. [2018-09-21 17:46:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-21 17:46:37,785 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:46:37,788 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:46:37,788 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:46:37,788 INFO L82 PathProgramCache]: Analyzing trace with hash -545217938, now seen corresponding path program 1 times [2018-09-21 17:46:37,788 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:46:37,789 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 17:46:37,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:46:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:46:37,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:46:38,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 17:46:38,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:46:38,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:38,040 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:38,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:38,060 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:46:38,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 17:46:38,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 17:46:38,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:46:38,133 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:46:38,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:46:38,147 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:46:38,428 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 17:46:38,428 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:46:38,439 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:46:38,439 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 17:46:38,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 17:46:38,440 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 17:46:38,440 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-09-21 17:46:38,441 INFO L87 Difference]: Start difference. First operand 55 states and 54 transitions. Second operand 12 states. [2018-09-21 17:46:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:46:39,581 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2018-09-21 17:46:39,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 17:46:39,582 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-09-21 17:46:39,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:46:39,583 INFO L225 Difference]: With dead ends: 53 [2018-09-21 17:46:39,583 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 17:46:39,583 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-09-21 17:46:39,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 17:46:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 17:46:39,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 17:46:39,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 17:46:39,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2018-09-21 17:46:39,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:46:39,584 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 17:46:39,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 17:46:39,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 17:46:39,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 17:46:39,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:46:39 BoogieIcfgContainer [2018-09-21 17:46:39,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:46:39,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:46:39,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:46:39,591 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:46:39,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:45:23" (3/4) ... [2018-09-21 17:46:39,595 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 17:46:39,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2018-09-21 17:46:39,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 17:46:39,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acos [2018-09-21 17:46:39,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-21 17:46:39,602 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 17:46:39,613 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2018-09-21 17:46:39,614 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-09-21 17:46:39,615 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-09-21 17:46:39,615 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 17:46:39,714 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 17:46:39,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:46:39,715 INFO L168 Benchmark]: Toolchain (without parser) took 95683.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 951.8 MB in the beginning and 930.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 225.0 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:39,716 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:46:39,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:39,716 INFO L168 Benchmark]: Boogie Preprocessor took 75.40 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:46:39,717 INFO L168 Benchmark]: RCFGBuilder took 18785.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:39,717 INFO L168 Benchmark]: TraceAbstraction took 76145.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 938.0 MB in the end (delta: 148.8 MB). Peak memory consumption was 209.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:39,717 INFO L168 Benchmark]: Witness Printer took 123.66 ms. Allocated memory is still 1.2 GB. Free memory was 938.0 MB in the beginning and 930.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-09-21 17:46:39,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 546.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.40 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 18785.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 76145.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 938.0 MB in the end (delta: 148.8 MB). Peak memory consumption was 209.1 MB. Max. memory is 11.5 GB. * Witness Printer took 123.66 ms. Allocated memory is still 1.2 GB. Free memory was 938.0 MB in the beginning and 930.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 237]: 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 6 procedures, 147 locations, 1 error locations. SAFE Result, 76.0s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 60.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1053 SDtfs, 424 SDslu, 4981 SDs, 0 SdLazy, 659 SolverSat, 34 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 46.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 328 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 9.8s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 290 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 282 ConstructedInterpolants, 96 QuantifiedInterpolants, 78856 SizeOfPredicates, 53 NumberOfNonLiveVariables, 995 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...