/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0661b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0661b_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 3baa54e1fe680d04e1d87db08239ebe83d82154f --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0661b_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 3baa54e1fe680d04e1d87db08239ebe83d82154f --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:22:25,701 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:22:25,704 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:22:25,721 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:22:25,721 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:22:25,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:22:25,724 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:22:25,729 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:22:25,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:22:25,737 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:22:25,739 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:22:25,739 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:22:25,741 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:22:25,742 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:22:25,746 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:22:25,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:22:25,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:22:25,757 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:22:25,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:22:25,762 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:22:25,763 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:22:25,764 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:22:25,767 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:22:25,768 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:22:25,768 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:22:25,769 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:22:25,770 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:22:25,771 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:22:25,772 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:22:25,774 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:22:25,774 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:22:25,775 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:22:25,775 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:22:25,775 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:22:25,777 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:22:25,778 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:22:25,778 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:22:25,794 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:22:25,794 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:22:25,795 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:22:25,795 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:22:25,796 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:22:25,796 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:22:25,797 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:22:25,797 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:22:25,797 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:22:25,798 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:22:25,798 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:22:25,798 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:22:25,798 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:22:25,798 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:22:25,799 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:22:25,799 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:22:25,800 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:22:25,800 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:22:25,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:22:25,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:22:25,800 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:22:25,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:22:25,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:25,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:22:25,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:22:25,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:22:25,801 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:22:25,801 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:22:25,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:22:25,802 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 -> 3baa54e1fe680d04e1d87db08239ebe83d82154f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:22:25,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:22:25,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:22:25,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:22:25,873 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:22:25,873 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:22:25,874 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0661b_true-unreach-call.c [2018-09-21 18:22:26,224 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1c3a45c/fc55c23950844f9f8659d489f60e2a9a/FLAGdee005892 [2018-09-21 18:22:26,380 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:22:26,381 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0661b_true-unreach-call.c [2018-09-21 18:22:26,391 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1c3a45c/fc55c23950844f9f8659d489f60e2a9a/FLAGdee005892 [2018-09-21 18:22:26,413 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1c3a45c/fc55c23950844f9f8659d489f60e2a9a [2018-09-21 18:22:26,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:22:26,423 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:22:26,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:26,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:22:26,432 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:22:26,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:26,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6546c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26, skipping insertion in model container [2018-09-21 18:22:26,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:26,449 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:22:26,799 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:26,839 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:22:26,910 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:26,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26 WrapperNode [2018-09-21 18:22:26,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:26,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:22:26,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:22:26,978 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:22:26,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:26,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:27,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:27,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:27,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:27,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:27,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... [2018-09-21 18:22:27,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:22:27,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:22:27,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:22:27,095 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:22:27,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:22:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:22:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:22:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:22:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:22:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:22:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:22:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:22:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:22:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:22:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:22:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:22:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:22:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:22:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:22:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:22:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:22:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:22:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:22:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:22:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:22:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:22:28,489 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:22:28,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:28 BoogieIcfgContainer [2018-09-21 18:22:28,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:22:28,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:22:28,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:22:28,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:22:28,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:22:26" (1/3) ... [2018-09-21 18:22:28,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8357fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:28, skipping insertion in model container [2018-09-21 18:22:28,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:26" (2/3) ... [2018-09-21 18:22:28,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8357fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:28, skipping insertion in model container [2018-09-21 18:22:28,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:28" (3/3) ... [2018-09-21 18:22:28,501 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0661b_true-unreach-call.c [2018-09-21 18:22:28,511 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:22:28,521 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:22:28,566 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:22:28,567 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:22:28,567 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:22:28,567 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:22:28,567 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:22:28,567 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:22:28,568 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:22:28,568 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:22:28,569 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:22:28,591 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:22:28,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:22:28,604 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:28,606 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 18:22:28,608 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:28,614 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:22:28,617 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:22:28,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:22:28,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:28,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:28,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:22:28,808 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:28,809 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:22:28,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:22:28,832 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:22:28,833 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:22:28,842 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:22:28,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:28,879 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:22:28,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:22:28,881 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:22:28,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:28,896 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:22:28,896 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:22:28,899 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:22:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:22:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:22:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:22:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:22:28,959 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:22:28,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:28,959 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:22:28,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:22:28,960 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:22:28,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:22:28,961 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:28,961 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 18:22:28,962 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:28,962 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:22:28,962 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:22:28,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:22:28,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:28,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:28,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:22:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:22:29,158 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:22:29,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:22:29 BoogieIcfgContainer [2018-09-21 18:22:29,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:22:29,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:22:29,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:22:29,235 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:22:29,236 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:28" (3/4) ... [2018-09-21 18:22:29,240 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:22:29,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:22:29,241 INFO L168 Benchmark]: Toolchain (without parser) took 2821.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -74.6 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:29,243 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:22:29,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.68 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:29,245 INFO L168 Benchmark]: Boogie Preprocessor took 113.93 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:29,245 INFO L168 Benchmark]: RCFGBuilder took 1397.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -124.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:29,246 INFO L168 Benchmark]: TraceAbstraction took 743.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:29,247 INFO L168 Benchmark]: Witness Printer took 5.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:22:29,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 552.68 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 113.93 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1397.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -124.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 743.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 231]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 230, overapproximation of someUnaryDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 133, overapproximation of someBinaryArithmeticFLOAToperation at line 135. Possible FailurePath: [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L47-L49] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L115-L116] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [\old(huge_atan)=6442450956, \old(one_atan)=6442450945, \old(pi)=6442450951, \old(pi_lo_atan2)=6442450964, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450949, \old(tiny_atan2)=6442450960, \old(zero_atan2)=6442450959, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L216] float x = __VERIFIER_nondet_float(); [L217] float y = 0.0f; VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L224] COND TRUE x > 0.0f VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L227] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L119] float z; [L120] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L123] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L124] FCALL gf_u.value = (x) VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L125] EXPR, FCALL gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L125] (hx) = gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L125] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450958, \old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L126] COND FALSE !(0) VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L127] ix = hx & 0x7fffffff VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L129] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L130] FCALL gf_u.value = (y) VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L131] EXPR, FCALL gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L131] (hy) = gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L131] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=6442450965, \old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L132] COND FALSE !(0) VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L133] iy = hy & 0x7fffffff VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] RET return x + y; VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L227] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=6442450954, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L227] float res = __ieee754_atan2f(y, x); [L230] COND TRUE res != 0.0f VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450954, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L231] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450954, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 157 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 197 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=157occurred 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, 56 NumberOfCodeBlocks, 56 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 18:22:31,667 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:22:31,669 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:22:31,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:22:31,687 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:22:31,690 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:22:31,692 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:22:31,694 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:22:31,696 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:22:31,697 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:22:31,698 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:22:31,701 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:22:31,703 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:22:31,704 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:22:31,705 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:22:31,707 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:22:31,708 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:22:31,709 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:22:31,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:22:31,716 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:22:31,719 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:22:31,722 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:22:31,724 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:22:31,724 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:22:31,725 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:22:31,726 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:22:31,727 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:22:31,728 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:22:31,728 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:22:31,730 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:22:31,730 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:22:31,731 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:22:31,731 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:22:31,731 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:22:31,733 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:22:31,733 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:22:31,734 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:22:31,749 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:22:31,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:22:31,751 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:22:31,751 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:22:31,752 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:22:31,752 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:22:31,752 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:22:31,752 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:22:31,753 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:22:31,753 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:22:31,753 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:22:31,753 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:22:31,754 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:22:31,754 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:22:31,754 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:22:31,754 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:22:31,754 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:22:31,754 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:22:31,755 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:22:31,755 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:22:31,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:22:31,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:22:31,757 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:22:31,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:31,757 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:22:31,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:22:31,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:22:31,758 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:22:31,758 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:22:31,759 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:22:31,759 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:22:31,759 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 -> 3baa54e1fe680d04e1d87db08239ebe83d82154f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:22:31,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:22:31,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:22:31,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:22:31,836 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:22:31,836 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:22:31,837 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0661b_true-unreach-call.c [2018-09-21 18:22:32,198 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49db2a5fe/34a22d8b35d340ad9f1b9ff5775b997e/FLAG5fbc68685 [2018-09-21 18:22:32,410 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:22:32,412 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0661b_true-unreach-call.c [2018-09-21 18:22:32,427 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49db2a5fe/34a22d8b35d340ad9f1b9ff5775b997e/FLAG5fbc68685 [2018-09-21 18:22:32,453 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49db2a5fe/34a22d8b35d340ad9f1b9ff5775b997e [2018-09-21 18:22:32,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:22:32,465 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:22:32,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:32,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:22:32,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:22:32,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:32,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c376bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32, skipping insertion in model container [2018-09-21 18:22:32,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:32,499 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:22:32,839 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:32,863 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:22:32,913 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:32,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32 WrapperNode [2018-09-21 18:22:32,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:32,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:22:32,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:22:32,981 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:22:33,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:33,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:33,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:33,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:33,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:33,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:33,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... [2018-09-21 18:22:33,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:22:33,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:22:33,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:22:33,068 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:22:33,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:22:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:22:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:22:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:22:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:22:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:22:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:22:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:22:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:22:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:22:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:22:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:22:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:22:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:22:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:22:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:22:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:22:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:22:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:22:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:22:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:22:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:22:33,512 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:33,559 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:33,598 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:33,624 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:34,587 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:34,616 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:37,652 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:37,727 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:43,640 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:45,845 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:48,198 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:22:48,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:48 BoogieIcfgContainer [2018-09-21 18:22:48,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:22:48,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:22:48,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:22:48,204 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:22:48,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:22:32" (1/3) ... [2018-09-21 18:22:48,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba3eec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:48, skipping insertion in model container [2018-09-21 18:22:48,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:32" (2/3) ... [2018-09-21 18:22:48,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba3eec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:48, skipping insertion in model container [2018-09-21 18:22:48,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:48" (3/3) ... [2018-09-21 18:22:48,209 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0661b_true-unreach-call.c [2018-09-21 18:22:48,220 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:22:48,230 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:22:48,279 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:22:48,280 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:22:48,280 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:22:48,280 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:22:48,281 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:22:48,281 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:22:48,281 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:22:48,281 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:22:48,281 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:22:48,305 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:22:48,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:22:48,318 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:48,320 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 18:22:48,323 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:48,329 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:22:48,335 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:48,336 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:22:48,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:48,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:22:48,514 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:48,527 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:48,527 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:22:48,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:22:48,545 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:22:48,546 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:22:48,548 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:22:48,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:48,582 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:22:48,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:22:48,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:22:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:48,598 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:22:48,598 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:22:48,600 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 18:22:48,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:22:48,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:22:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:22:48,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:22:48,665 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:22:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:48,666 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:22:48,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:22:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:22:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:22:48,669 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:48,670 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 18:22:48,670 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:22:48,672 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:48,672 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:22:48,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:48,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:48,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:22:48,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:22:48,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:48,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:49,035 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:49,035 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:22:49,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:22:49,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:22:49,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:49,272 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:49,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:49,349 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:22:49,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:22:49,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:22:49,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:49,899 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:49,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:22:49,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:36 [2018-09-21 18:22:50,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:22:50,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:22:50,085 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:50,089 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:50,123 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 18:22:50,124 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:24 [2018-09-21 18:22:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:22:50,953 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:50,969 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:50,969 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:22:50,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:22:50,974 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:22:50,974 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:22:50,975 INFO L87 Difference]: Start difference. First operand 152 states and 191 transitions. Second operand 14 states. [2018-09-21 18:22:52,827 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 18:22:53,517 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:22:58,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:58,374 INFO L93 Difference]: Finished difference Result 154 states and 192 transitions. [2018-09-21 18:22:58,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:22:58,376 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-09-21 18:22:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:58,379 INFO L225 Difference]: With dead ends: 154 [2018-09-21 18:22:58,379 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:22:58,381 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-09-21 18:22:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:22:58,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:22:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:22:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2018-09-21 18:22:58,396 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 37 [2018-09-21 18:22:58,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:58,397 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2018-09-21 18:22:58,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:22:58,397 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2018-09-21 18:22:58,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:22:58,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:58,399 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:22:58,399 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:58,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1076772893, now seen corresponding path program 1 times [2018-09-21 18:22:58,400 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:58,400 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:22:58,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:58,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:58,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:22:58,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:22:58,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:58,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:58,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:58,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:22:58,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:22:58,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:22:58,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:58,633 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:58,635 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:58,636 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:22:58,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:22:58,767 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:58,786 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:58,786 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:22:58,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:22:58,787 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:22:58,787 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:22:58,787 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 9 states. [2018-09-21 18:23:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:01,539 INFO L93 Difference]: Finished difference Result 197 states and 251 transitions. [2018-09-21 18:23:01,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:23:01,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:23:01,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:01,544 INFO L225 Difference]: With dead ends: 197 [2018-09-21 18:23:01,544 INFO L226 Difference]: Without dead ends: 145 [2018-09-21 18:23:01,545 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:23:01,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-09-21 18:23:01,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-09-21 18:23:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-09-21 18:23:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 175 transitions. [2018-09-21 18:23:01,562 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 175 transitions. Word has length 42 [2018-09-21 18:23:01,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:01,563 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 175 transitions. [2018-09-21 18:23:01,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:23:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 175 transitions. [2018-09-21 18:23:01,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:23:01,565 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:01,565 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:01,565 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:01,566 INFO L82 PathProgramCache]: Analyzing trace with hash -957616091, now seen corresponding path program 1 times [2018-09-21 18:23:01,566 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:01,566 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:23:01,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:01,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:01,762 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:01,772 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:01,772 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:23:01,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:23:01,773 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:23:01,773 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:23:01,774 INFO L87 Difference]: Start difference. First operand 145 states and 175 transitions. Second operand 7 states. [2018-09-21 18:23:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:03,119 INFO L93 Difference]: Finished difference Result 149 states and 178 transitions. [2018-09-21 18:23:03,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:23:03,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2018-09-21 18:23:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:03,122 INFO L225 Difference]: With dead ends: 149 [2018-09-21 18:23:03,122 INFO L226 Difference]: Without dead ends: 145 [2018-09-21 18:23:03,122 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:23:03,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-09-21 18:23:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-09-21 18:23:03,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-09-21 18:23:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 174 transitions. [2018-09-21 18:23:03,134 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 174 transitions. Word has length 42 [2018-09-21 18:23:03,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:03,135 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 174 transitions. [2018-09-21 18:23:03,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:23:03,135 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 174 transitions. [2018-09-21 18:23:03,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 18:23:03,137 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:03,138 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] [2018-09-21 18:23:03,138 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:03,139 INFO L82 PathProgramCache]: Analyzing trace with hash 954498639, now seen corresponding path program 1 times [2018-09-21 18:23:03,139 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:03,139 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 18:23:03,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:03,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:03,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:03,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:03,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,412 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,457 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:23:03,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:03,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:03,528 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,549 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:23:03,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:03,702 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:03,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,728 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,783 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-21 18:23:03,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:03,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:03,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,846 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:03,859 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-21 18:23:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:04,983 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:04,999 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:04,999 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-21 18:23:04,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-21 18:23:05,000 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-21 18:23:05,000 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:23:05,000 INFO L87 Difference]: Start difference. First operand 145 states and 174 transitions. Second operand 15 states. [2018-09-21 18:23:06,321 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:23:07,050 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 18:23:07,341 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-09-21 18:23:08,135 WARN L178 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 47 [2018-09-21 18:23:08,765 WARN L178 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-09-21 18:23:10,342 WARN L178 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-09-21 18:23:12,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:12,678 INFO L93 Difference]: Finished difference Result 148 states and 176 transitions. [2018-09-21 18:23:12,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-21 18:23:12,680 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2018-09-21 18:23:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:12,681 INFO L225 Difference]: With dead ends: 148 [2018-09-21 18:23:12,681 INFO L226 Difference]: Without dead ends: 95 [2018-09-21 18:23:12,682 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2018-09-21 18:23:12,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-09-21 18:23:12,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-09-21 18:23:12,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-09-21 18:23:12,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2018-09-21 18:23:12,689 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 43 [2018-09-21 18:23:12,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:12,690 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2018-09-21 18:23:12,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-21 18:23:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2018-09-21 18:23:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-21 18:23:12,693 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:12,693 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, 1, 1] [2018-09-21 18:23:12,693 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:12,694 INFO L82 PathProgramCache]: Analyzing trace with hash 763977541, now seen corresponding path program 1 times [2018-09-21 18:23:12,694 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:12,694 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 18:23:12,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:12,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:12,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:12,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:12,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:12,916 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:12,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:12,928 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:12,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:12,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:12,959 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:12,963 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:12,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:12,966 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:13,221 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:13,232 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:13,232 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:23:13,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:23:13,233 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:23:13,233 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:23:13,233 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand 11 states. [2018-09-21 18:23:27,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:27,610 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2018-09-21 18:23:27,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:23:27,675 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2018-09-21 18:23:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:27,678 INFO L225 Difference]: With dead ends: 104 [2018-09-21 18:23:27,678 INFO L226 Difference]: Without dead ends: 97 [2018-09-21 18:23:27,679 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:23:27,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-21 18:23:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2018-09-21 18:23:27,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-09-21 18:23:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 100 transitions. [2018-09-21 18:23:27,685 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 100 transitions. Word has length 56 [2018-09-21 18:23:27,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:27,686 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 100 transitions. [2018-09-21 18:23:27,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:23:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 100 transitions. [2018-09-21 18:23:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 18:23:27,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:27,689 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, 1, 1, 1, 1] [2018-09-21 18:23:27,690 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:27,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1359435672, now seen corresponding path program 1 times [2018-09-21 18:23:27,691 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:27,691 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 18:23:27,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:27,826 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:27,971 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:27,983 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:27,983 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:23:27,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:23:27,984 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:23:27,984 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:23:27,987 INFO L87 Difference]: Start difference. First operand 93 states and 100 transitions. Second operand 10 states. [2018-09-21 18:23:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:40,430 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2018-09-21 18:23:40,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:23:40,499 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2018-09-21 18:23:40,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:40,500 INFO L225 Difference]: With dead ends: 101 [2018-09-21 18:23:40,500 INFO L226 Difference]: Without dead ends: 94 [2018-09-21 18:23:40,501 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:23:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-09-21 18:23:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 93. [2018-09-21 18:23:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-09-21 18:23:40,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2018-09-21 18:23:40,506 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 58 [2018-09-21 18:23:40,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:40,506 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2018-09-21 18:23:40,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:23:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2018-09-21 18:23:40,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-21 18:23:40,509 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:40,509 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, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:40,509 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:40,509 INFO L82 PathProgramCache]: Analyzing trace with hash 666025322, now seen corresponding path program 1 times [2018-09-21 18:23:40,511 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:40,511 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 18:23:40,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:41,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:41,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:41,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:41,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:41,757 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:41,768 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:41,768 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:41,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:41,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:41,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:41,815 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:41,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:41,817 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:42,050 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:42,089 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:42,090 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:23:42,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:23:42,091 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:23:42,091 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:23:42,091 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand 11 states. [2018-09-21 18:23:54,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:54,797 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2018-09-21 18:23:54,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:23:54,867 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2018-09-21 18:23:54,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:54,868 INFO L225 Difference]: With dead ends: 105 [2018-09-21 18:23:54,868 INFO L226 Difference]: Without dead ends: 93 [2018-09-21 18:23:54,869 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:23:54,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-09-21 18:23:54,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2018-09-21 18:23:54,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-09-21 18:23:54,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2018-09-21 18:23:54,880 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 60 [2018-09-21 18:23:54,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:54,881 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2018-09-21 18:23:54,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:23:54,881 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2018-09-21 18:23:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-21 18:23:54,883 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:54,884 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:54,884 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:54,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1629253508, now seen corresponding path program 1 times [2018-09-21 18:23:54,886 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:54,886 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:23:54,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:56,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:57,724 WARN L178 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:23:59,956 WARN L178 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:23:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:59,971 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:59,994 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:59,994 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:23:59,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:23:59,995 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:23:59,995 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:23:59,995 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand 8 states. [2018-09-21 18:24:14,679 WARN L178 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-21 18:24:23,117 WARN L178 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-21 18:24:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:27,681 INFO L93 Difference]: Finished difference Result 101 states and 104 transitions. [2018-09-21 18:24:27,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:24:27,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-09-21 18:24:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:27,683 INFO L225 Difference]: With dead ends: 101 [2018-09-21 18:24:27,683 INFO L226 Difference]: Without dead ends: 89 [2018-09-21 18:24:27,683 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:24:27,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-09-21 18:24:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-09-21 18:24:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-21 18:24:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2018-09-21 18:24:27,687 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 61 [2018-09-21 18:24:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:27,687 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2018-09-21 18:24:27,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:24:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2018-09-21 18:24:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-09-21 18:24:27,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:27,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:24:27,689 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:27,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1463813423, now seen corresponding path program 1 times [2018-09-21 18:24:27,690 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:27,690 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:24:27,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:29,068 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:29,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:24:29,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:24:29,119 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,124 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,135 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:24:29,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:24:29,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:24:29,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,189 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:24:29,192 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:24:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:24:29,420 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:29,452 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:29,452 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:24:29,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:24:29,453 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:24:29,453 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:24:29,453 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 11 states. [2018-09-21 18:24:36,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:36,983 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2018-09-21 18:24:36,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:24:36,983 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 86 [2018-09-21 18:24:36,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:36,984 INFO L225 Difference]: With dead ends: 85 [2018-09-21 18:24:36,984 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:24:36,984 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:24:36,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:24:36,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:24:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:24:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:24:36,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2018-09-21 18:24:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:36,985 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:24:36,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:24:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:24:36,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:24:36,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:24:36 BoogieIcfgContainer [2018-09-21 18:24:36,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:24:36,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:24:36,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:24:36,991 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:24:36,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:48" (3/4) ... [2018-09-21 18:24:36,995 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:24:37,001 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:24:37,001 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:24:37,001 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:24:37,002 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:24:37,002 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:24:37,012 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:24:37,013 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:24:37,014 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:24:37,113 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:24:37,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:24:37,119 INFO L168 Benchmark]: Toolchain (without parser) took 124659.43 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 293.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -127.4 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:37,122 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:24:37,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.19 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:37,124 INFO L168 Benchmark]: Boogie Preprocessor took 87.34 ms. Allocated memory is still 1.0 GB. Free memory was 933.0 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:37,124 INFO L168 Benchmark]: RCFGBuilder took 15131.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:37,126 INFO L168 Benchmark]: TraceAbstraction took 108789.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 151.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.6 MB). Peak memory consumption was 138.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:37,126 INFO L168 Benchmark]: Witness Printer took 127.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:24:37,132 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 510.19 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.34 ms. Allocated memory is still 1.0 GB. Free memory was 933.0 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 15131.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 108789.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 151.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.6 MB). Peak memory consumption was 138.4 MB. Max. memory is 11.5 GB. * Witness Printer took 127.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 231]: 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, 157 locations, 1 error locations. SAFE Result, 108.7s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 94.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1250 SDtfs, 1698 SDslu, 7136 SDs, 0 SdLazy, 1496 SolverSat, 96 SolverUnsat, 20 SolverUnknown, 0 SolverNotchecked, 79.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 567 GetRequests, 412 SyntacticMatches, 4 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred 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, 10 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 494 ConstructedInterpolants, 60 QuantifiedInterpolants, 215837 SizeOfPredicates, 78 NumberOfNonLiveVariables, 1303 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...