/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0686a_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_0686a_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 2e4c57dd78ca61b194172b998a147be383066b6a --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_0686a_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 2e4c57dd78ca61b194172b998a147be383066b6a --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 18:25:42,735 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:25:42,739 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:25:42,761 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:25:42,762 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:25:42,764 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:25:42,765 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:25:42,767 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:25:42,769 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:25:42,770 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:25:42,771 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:25:42,771 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:25:42,772 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:25:42,773 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:25:42,774 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:25:42,775 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:25:42,776 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:25:42,777 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:25:42,779 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:25:42,781 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:25:42,782 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:25:42,783 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:25:42,790 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:25:42,790 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:25:42,790 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:25:42,791 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:25:42,792 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:25:42,793 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:25:42,794 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:25:42,795 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:25:42,796 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:25:42,796 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:25:42,797 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:25:42,797 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:25:42,798 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:25:42,798 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:25:42,799 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:25:42,825 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:25:42,825 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:25:42,826 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:25:42,826 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:25:42,827 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:25:42,827 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:25:42,827 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:25:42,827 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:25:42,828 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:25:42,828 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:25:42,828 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:25:42,828 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:25:42,828 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:25:42,828 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:25:42,829 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:25:42,829 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:25:42,829 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:25:42,829 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:25:42,829 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:25:42,829 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:25:42,830 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:25:42,830 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:25:42,830 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:25:42,830 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:25:42,830 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:25:42,831 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:25:42,831 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:25:42,831 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:25:42,831 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:25:42,831 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 -> 2e4c57dd78ca61b194172b998a147be383066b6a 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 18:25:42,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:25:42,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:25:42,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:25:42,909 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:25:42,910 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:25:42,911 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0686a_true-unreach-call.c [2018-09-21 18:25:43,260 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23ff683b/e289a2a67012426ca1b152275933a262/FLAG86d52b3b9 [2018-09-21 18:25:43,425 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:25:43,426 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0686a_true-unreach-call.c [2018-09-21 18:25:43,436 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23ff683b/e289a2a67012426ca1b152275933a262/FLAG86d52b3b9 [2018-09-21 18:25:43,455 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23ff683b/e289a2a67012426ca1b152275933a262 [2018-09-21 18:25:43,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:25:43,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:25:43,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:25:43,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:25:43,472 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:25:43,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:43,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4b36e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43, skipping insertion in model container [2018-09-21 18:25:43,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:43,493 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:25:43,826 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:25:43,849 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:25:43,891 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:25:43,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43 WrapperNode [2018-09-21 18:25:43,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:25:43,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:25:43,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:25:43,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:25:43,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:43,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:43,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:43,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:44,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:44,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:44,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (1/1) ... [2018-09-21 18:25:44,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:25:44,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:25:44,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:25:44,038 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:25:44,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (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 18:25:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:25:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:25:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:25:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:25:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:25:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:25:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:25:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:25:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:25:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:25:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:25:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:25:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:25:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:25:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:25:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:25:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:25:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:25:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:25:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:25:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:25:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:25:45,338 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:25:45,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:25:45 BoogieIcfgContainer [2018-09-21 18:25:45,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:25:45,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:25:45,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:25:45,345 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:25:45,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:25:43" (1/3) ... [2018-09-21 18:25:45,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0fb8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:25:45, skipping insertion in model container [2018-09-21 18:25:45,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:43" (2/3) ... [2018-09-21 18:25:45,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0fb8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:25:45, skipping insertion in model container [2018-09-21 18:25:45,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:25:45" (3/3) ... [2018-09-21 18:25:45,349 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0686a_true-unreach-call.c [2018-09-21 18:25:45,361 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:25:45,370 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:25:45,410 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:25:45,411 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:25:45,411 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:25:45,411 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:25:45,411 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:25:45,412 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:25:45,412 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:25:45,412 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:25:45,412 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:25:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2018-09-21 18:25:45,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:25:45,446 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:45,447 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:25:45,449 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:45,455 INFO L82 PathProgramCache]: Analyzing trace with hash -61180521, now seen corresponding path program 1 times [2018-09-21 18:25:45,458 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:25:45,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:25:45,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:25:45,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:45,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:25:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:45,647 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 18:25:45,650 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:45,650 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:25:45,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:25:45,672 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:25:45,673 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:25:45,677 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2018-09-21 18:25:45,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:45,711 INFO L93 Difference]: Finished difference Result 155 states and 194 transitions. [2018-09-21 18:25:45,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:25:45,713 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:25:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:45,728 INFO L225 Difference]: With dead ends: 155 [2018-09-21 18:25:45,728 INFO L226 Difference]: Without dead ends: 151 [2018-09-21 18:25:45,730 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 18:25:45,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-09-21 18:25:45,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-09-21 18:25:45,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-09-21 18:25:45,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 190 transitions. [2018-09-21 18:25:45,789 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 190 transitions. Word has length 18 [2018-09-21 18:25:45,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:45,789 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 190 transitions. [2018-09-21 18:25:45,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:25:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 190 transitions. [2018-09-21 18:25:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 18:25:45,791 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:45,791 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:25:45,792 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:45,792 INFO L82 PathProgramCache]: Analyzing trace with hash -639568855, now seen corresponding path program 1 times [2018-09-21 18:25:45,792 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:25:45,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:25:45,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:25:45,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:45,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:25:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:25:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:25:45,989 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:25:46,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:25:46 BoogieIcfgContainer [2018-09-21 18:25:46,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:25:46,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:25:46,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:25:46,054 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:25:46,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:25:45" (3/4) ... [2018-09-21 18:25:46,059 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:25:46,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:25:46,060 INFO L168 Benchmark]: Toolchain (without parser) took 2600.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -79.4 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:46,062 INFO L168 Benchmark]: CDTParser took 0.25 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 18:25:46,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:46,063 INFO L168 Benchmark]: Boogie Preprocessor took 107.39 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:25:46,064 INFO L168 Benchmark]: RCFGBuilder took 1301.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -123.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:46,065 INFO L168 Benchmark]: TraceAbstraction took 713.56 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: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:46,066 INFO L168 Benchmark]: Witness Printer took 5.97 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 18:25:46,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 465.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 107.39 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1301.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -123.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 713.56 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: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.97 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: 228]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 227, 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)=10737418251, \old(one_atan)=10737418241, \old(pi)=10737418247, \old(pi_lo_atan2)=10737418261, \old(pi_o_2)=10737418242, \old(pi_o_4)=10737418246, \old(tiny_atan2)=10737418254, \old(zero_atan2)=10737418252, 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] [L221] float x = 1.0f / 0.0f; [L222] float y = 1.0f / 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, zero_atan2=0] [L224] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=10737418257, \old(y)=10737418260, 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)=10737418257, \old(y)=10737418260, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L123] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418258:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L124] FCALL gf_u.value = (x) VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418258:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L125] EXPR, FCALL gf_u.word VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418258:0}, 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=10737418257, y=10737418260, zero_atan2=0] [L125] (hx) = gf_u.word VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418258:0}, 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=10737418257, y=10737418260, zero_atan2=0] [L125] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=10737418245, \old(x)=10737418257, \old(y)=10737418260, gf_u={10737418258:0}, 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=10737418257, y=10737418260, zero_atan2=0] [L126] COND FALSE !(0) VAL [\old(x)=10737418257, \old(y)=10737418260, 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=10737418257, y=10737418260, zero_atan2=0] [L127] ix = hx & 0x7fffffff VAL [\old(x)=10737418257, \old(y)=10737418260, 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=10737418257, y=10737418260, zero_atan2=0] [L129] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418253:0}, 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=10737418257, y=10737418260, zero_atan2=0] [L130] FCALL gf_u.value = (y) VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418253:0}, 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=10737418257, y=10737418260, zero_atan2=0] [L131] EXPR, FCALL gf_u.word VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418253:0}, gf_u.word=10737418240, 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=10737418257, y=10737418260, zero_atan2=0] [L131] (hy) = gf_u.word VAL [\old(x)=10737418257, \old(y)=10737418260, gf_u={10737418253:0}, gf_u.word=10737418240, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L131] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=10737418262, \old(x)=10737418257, \old(y)=10737418260, gf_u={10737418253:0}, gf_u.word=10737418240, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L132] COND FALSE !(0) VAL [\old(x)=10737418257, \old(y)=10737418260, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L133] iy = hy & 0x7fffffff VAL [\old(x)=10737418257, \old(y)=10737418260, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] RET return x + y; VAL [\old(x)=10737418257, \old(y)=10737418260, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=-2147483648, 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=10737418257, y=10737418260, zero_atan2=0] [L224] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=10737418250, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L224] float res = __ieee754_atan2f(y, x); [L227] COND TRUE res != pi_o_4 VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10737418250, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] [L228] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10737418250, tiny_atan2=1/1000000000000000000000000000000, x=10737418257, y=10737418260, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 155 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 194 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=155occurred 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, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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 18:25:48,518 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:25:48,520 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:25:48,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:25:48,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:25:48,533 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:25:48,534 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:25:48,536 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:25:48,538 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:25:48,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:25:48,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:25:48,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:25:48,541 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:25:48,542 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:25:48,543 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:25:48,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:25:48,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:25:48,554 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:25:48,559 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:25:48,561 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:25:48,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:25:48,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:25:48,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:25:48,575 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:25:48,575 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:25:48,576 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:25:48,577 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:25:48,577 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:25:48,578 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:25:48,579 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:25:48,579 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:25:48,580 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:25:48,580 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:25:48,580 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:25:48,581 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:25:48,582 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:25:48,582 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:25:48,597 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:25:48,597 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:25:48,598 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:25:48,598 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:25:48,599 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:25:48,599 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:25:48,599 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:25:48,600 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:25:48,600 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:25:48,600 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:25:48,600 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:25:48,600 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:25:48,600 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:25:48,601 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:25:48,601 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:25:48,601 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:25:48,601 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:25:48,601 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:25:48,601 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:25:48,602 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:25:48,602 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:25:48,602 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:25:48,602 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:25:48,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:25:48,603 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:25:48,603 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:25:48,603 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:25:48,603 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:25:48,603 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:25:48,603 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:25:48,604 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:25:48,604 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 -> 2e4c57dd78ca61b194172b998a147be383066b6a 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 18:25:48,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:25:48,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:25:48,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:25:48,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:25:48,683 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:25:48,684 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0686a_true-unreach-call.c [2018-09-21 18:25:49,042 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95519a537/8e756bfb8eee4c49b9f9eef78a684278/FLAGd4c9eae80 [2018-09-21 18:25:49,251 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:25:49,252 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0686a_true-unreach-call.c [2018-09-21 18:25:49,261 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95519a537/8e756bfb8eee4c49b9f9eef78a684278/FLAGd4c9eae80 [2018-09-21 18:25:49,277 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95519a537/8e756bfb8eee4c49b9f9eef78a684278 [2018-09-21 18:25:49,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:25:49,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:25:49,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:25:49,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:25:49,293 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:25:49,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49, skipping insertion in model container [2018-09-21 18:25:49,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,309 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:25:49,606 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:25:49,644 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:25:49,731 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:25:49,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49 WrapperNode [2018-09-21 18:25:49,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:25:49,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:25:49,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:25:49,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:25:49,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (1/1) ... [2018-09-21 18:25:49,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:25:49,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:25:49,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:25:49,914 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:25:49,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (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 18:25:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:25:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:25:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:25:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:25:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:25:50,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:25:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:25:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:25:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:25:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:25:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:25:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:25:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:25:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:25:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:25:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:25:50,070 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:25:50,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:25:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:25:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:25:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:25:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:25:50,346 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:50,390 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:50,477 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:50,496 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:51,462 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:51,491 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:54,567 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:54,574 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:25:58,041 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:26:00,230 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:26:03,409 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:26:03,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:26:03 BoogieIcfgContainer [2018-09-21 18:26:03,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:26:03,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:26:03,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:26:03,415 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:26:03,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:25:49" (1/3) ... [2018-09-21 18:26:03,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c553af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:26:03, skipping insertion in model container [2018-09-21 18:26:03,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:25:49" (2/3) ... [2018-09-21 18:26:03,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c553af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:26:03, skipping insertion in model container [2018-09-21 18:26:03,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:26:03" (3/3) ... [2018-09-21 18:26:03,420 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0686a_true-unreach-call.c [2018-09-21 18:26:03,432 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:26:03,440 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:26:03,480 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:26:03,481 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:26:03,481 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:26:03,481 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:26:03,482 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:26:03,482 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:26:03,482 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:26:03,482 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:26:03,482 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:26:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2018-09-21 18:26:03,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:26:03,517 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:03,518 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:26:03,521 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:03,529 INFO L82 PathProgramCache]: Analyzing trace with hash -61180521, now seen corresponding path program 1 times [2018-09-21 18:26:03,536 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:03,537 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) [2018-09-21 18:26:03,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:26:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:03,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:03,693 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 18:26:03,693 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:03,707 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:03,707 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:26:03,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:26:03,726 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:26:03,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:26:03,730 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2018-09-21 18:26:03,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:03,765 INFO L93 Difference]: Finished difference Result 155 states and 194 transitions. [2018-09-21 18:26:03,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:26:03,766 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:26:03,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:03,781 INFO L225 Difference]: With dead ends: 155 [2018-09-21 18:26:03,781 INFO L226 Difference]: Without dead ends: 151 [2018-09-21 18:26:03,783 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 18:26:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-09-21 18:26:03,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-09-21 18:26:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-09-21 18:26:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 190 transitions. [2018-09-21 18:26:03,850 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 190 transitions. Word has length 18 [2018-09-21 18:26:03,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:03,851 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 190 transitions. [2018-09-21 18:26:03,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:26:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 190 transitions. [2018-09-21 18:26:03,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 18:26:03,853 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:03,853 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] [2018-09-21 18:26:03,853 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:03,853 INFO L82 PathProgramCache]: Analyzing trace with hash -639568855, now seen corresponding path program 1 times [2018-09-21 18:26:03,854 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:03,855 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 18:26:03,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:26:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:03,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:04,133 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 18:26:04,139 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 18:26:04,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:04,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:04,247 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 18:26:04,248 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:26:04,309 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 18:26:04,326 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 18:26:04,327 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:04,338 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:04,371 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 18:26:04,372 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:26:04,850 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 18:26:04,857 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 18:26:04,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:04,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:04,890 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 18:26:04,890 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:36 [2018-09-21 18:26:05,026 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 18:26:05,045 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 18:26:05,045 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:05,062 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:05,079 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 18:26:05,079 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:24 [2018-09-21 18:26:05,897 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 18:26:05,897 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:05,912 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:05,913 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:26:05,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:26:05,916 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:26:05,916 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:26:05,917 INFO L87 Difference]: Start difference. First operand 151 states and 190 transitions. Second operand 13 states. [2018-09-21 18:26:08,460 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:26:10,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:10,802 INFO L93 Difference]: Finished difference Result 153 states and 191 transitions. [2018-09-21 18:26:10,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:26:10,805 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2018-09-21 18:26:10,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:10,808 INFO L225 Difference]: With dead ends: 153 [2018-09-21 18:26:10,808 INFO L226 Difference]: Without dead ends: 151 [2018-09-21 18:26:10,810 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-09-21 18:26:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-09-21 18:26:10,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-09-21 18:26:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-09-21 18:26:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 189 transitions. [2018-09-21 18:26:10,825 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 189 transitions. Word has length 36 [2018-09-21 18:26:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:10,826 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 189 transitions. [2018-09-21 18:26:10,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:26:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 189 transitions. [2018-09-21 18:26:10,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:26:10,828 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:10,829 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:26:10,829 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:10,829 INFO L82 PathProgramCache]: Analyzing trace with hash 568067804, now seen corresponding path program 1 times [2018-09-21 18:26:10,830 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:10,830 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 18:26:10,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:26:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:10,948 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:10,991 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 18:26:10,995 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 18:26:10,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:11,002 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:11,016 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 18:26:11,017 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:26:11,050 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 18:26:11,054 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 18:26:11,054 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:11,058 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:11,062 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 18:26:11,062 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:26:11,218 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 18:26:11,218 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:11,235 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:11,235 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:26:11,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:26:11,236 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:26:11,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:26:11,236 INFO L87 Difference]: Start difference. First operand 151 states and 189 transitions. Second operand 9 states. [2018-09-21 18:26:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:13,041 INFO L93 Difference]: Finished difference Result 153 states and 190 transitions. [2018-09-21 18:26:13,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:26:13,043 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-21 18:26:13,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:13,049 INFO L225 Difference]: With dead ends: 153 [2018-09-21 18:26:13,049 INFO L226 Difference]: Without dead ends: 149 [2018-09-21 18:26:13,050 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 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 18:26:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-09-21 18:26:13,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-09-21 18:26:13,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-09-21 18:26:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 185 transitions. [2018-09-21 18:26:13,064 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 185 transitions. Word has length 41 [2018-09-21 18:26:13,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:13,065 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 185 transitions. [2018-09-21 18:26:13,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:26:13,065 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 185 transitions. [2018-09-21 18:26:13,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:26:13,067 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:13,067 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:26:13,068 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:13,068 INFO L82 PathProgramCache]: Analyzing trace with hash 687224606, now seen corresponding path program 1 times [2018-09-21 18:26:13,069 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:13,069 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 18:26:13,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:26:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:13,162 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:13,201 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 18:26:13,208 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 18:26:13,208 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:13,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:13,225 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 18:26:13,226 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:26:13,248 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 18:26:13,280 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 18:26:13,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:13,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:13,330 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 18:26:13,330 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:26:13,590 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 18:26:13,590 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:13,602 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:13,602 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:26:13,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:26:13,603 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:26:13,603 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:26:13,604 INFO L87 Difference]: Start difference. First operand 149 states and 185 transitions. Second operand 9 states. [2018-09-21 18:26:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:17,469 INFO L93 Difference]: Finished difference Result 192 states and 240 transitions. [2018-09-21 18:26:17,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:26:17,470 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-21 18:26:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:17,472 INFO L225 Difference]: With dead ends: 192 [2018-09-21 18:26:17,472 INFO L226 Difference]: Without dead ends: 143 [2018-09-21 18:26:17,473 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:26:17,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-09-21 18:26:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-09-21 18:26:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-09-21 18:26:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 174 transitions. [2018-09-21 18:26:17,482 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 174 transitions. Word has length 41 [2018-09-21 18:26:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:17,482 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 174 transitions. [2018-09-21 18:26:17,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:26:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 174 transitions. [2018-09-21 18:26:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:26:17,485 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:17,485 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 18:26:17,486 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:17,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1910786392, now seen corresponding path program 1 times [2018-09-21 18:26:17,487 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:17,487 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 18:26:17,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:26:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:17,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:17,772 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:26:17,928 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:26:18,183 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:26:18,194 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 18:26:18,195 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:18,209 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:18,209 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:26:18,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:26:18,210 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:26:18,210 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:26:18,210 INFO L87 Difference]: Start difference. First operand 143 states and 174 transitions. Second operand 6 states. [2018-09-21 18:26:26,111 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:26:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:27,495 INFO L93 Difference]: Finished difference Result 147 states and 177 transitions. [2018-09-21 18:26:27,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 18:26:27,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2018-09-21 18:26:27,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:27,497 INFO L225 Difference]: With dead ends: 147 [2018-09-21 18:26:27,497 INFO L226 Difference]: Without dead ends: 143 [2018-09-21 18:26:27,497 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:26:27,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-09-21 18:26:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-09-21 18:26:27,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-09-21 18:26:27,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 173 transitions. [2018-09-21 18:26:27,506 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 173 transitions. Word has length 42 [2018-09-21 18:26:27,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:27,507 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 173 transitions. [2018-09-21 18:26:27,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:26:27,507 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 173 transitions. [2018-09-21 18:26:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:26:27,512 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:27,512 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 18:26:27,513 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:27,513 INFO L82 PathProgramCache]: Analyzing trace with hash -767998936, now seen corresponding path program 1 times [2018-09-21 18:26:27,514 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:27,514 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 18:26:27,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:26:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:27,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:27,632 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 18:26:27,638 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 18:26:27,638 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:27,645 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:27,654 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 18:26:27,655 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:26:27,676 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 18:26:27,683 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 18:26:27,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:27,686 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:27,690 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 18:26:27,690 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:26:27,898 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 18:26:27,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:27,910 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:27,911 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:26:27,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:26:27,911 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:26:27,911 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:26:27,912 INFO L87 Difference]: Start difference. First operand 143 states and 173 transitions. Second operand 9 states. [2018-09-21 18:26:29,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:29,804 INFO L93 Difference]: Finished difference Result 146 states and 175 transitions. [2018-09-21 18:26:29,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:26:29,805 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:26:29,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:29,806 INFO L225 Difference]: With dead ends: 146 [2018-09-21 18:26:29,806 INFO L226 Difference]: Without dead ends: 106 [2018-09-21 18:26:29,807 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:26:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-09-21 18:26:29,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-09-21 18:26:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-09-21 18:26:29,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2018-09-21 18:26:29,813 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 42 [2018-09-21 18:26:29,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:29,813 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2018-09-21 18:26:29,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:26:29,814 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2018-09-21 18:26:29,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 18:26:29,816 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:29,816 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 18:26:29,816 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:29,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1262003504, now seen corresponding path program 1 times [2018-09-21 18:26:29,817 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:29,817 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 18:26:29,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:26:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:29,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:30,054 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 18:26:30,061 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 18:26:30,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:30,068 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:30,078 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 18:26:30,078 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:26:30,097 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 18:26:30,120 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 18:26:30,121 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:30,145 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:30,160 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 18:26:30,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:26:30,343 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 18:26:30,344 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:30,355 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:30,356 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:26:30,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:26:30,356 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:26:30,357 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:26:30,357 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 9 states. [2018-09-21 18:26:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:31,140 INFO L93 Difference]: Finished difference Result 111 states and 127 transitions. [2018-09-21 18:26:31,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:26:31,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-09-21 18:26:31,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:31,141 INFO L225 Difference]: With dead ends: 111 [2018-09-21 18:26:31,142 INFO L226 Difference]: Without dead ends: 50 [2018-09-21 18:26:31,142 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:26:31,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-21 18:26:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-09-21 18:26:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-09-21 18:26:31,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-09-21 18:26:31,147 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 43 [2018-09-21 18:26:31,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:31,147 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-09-21 18:26:31,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:26:31,148 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-09-21 18:26:31,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 18:26:31,149 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:26:31,150 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 18:26:31,150 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:26:31,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1844240302, now seen corresponding path program 1 times [2018-09-21 18:26:31,151 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:26:31,151 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 18:26:31,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:26:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:26:31,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:26:31,343 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 18:26:31,355 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 18:26:31,355 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,366 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,385 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 18:26:31,385 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:26:31,455 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 18:26:31,460 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 18:26:31,460 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,472 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,486 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 18:26:31,487 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:26:31,601 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 18:26:31,606 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 18:26:31,606 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,638 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 18:26:31,638 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-21 18:26:31,698 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 18:26:31,703 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 18:26:31,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:26:31,722 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 18:26:31,722 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-21 18:26:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:26:32,197 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:26:32,213 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:26:32,213 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:26:32,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:26:32,214 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:26:32,214 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:26:32,218 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 13 states. [2018-09-21 18:26:34,456 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-09-21 18:26:34,701 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-09-21 18:26:36,963 WARN L178 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-09-21 18:26:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:26:37,394 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2018-09-21 18:26:37,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:26:37,402 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2018-09-21 18:26:37,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:26:37,403 INFO L225 Difference]: With dead ends: 46 [2018-09-21 18:26:37,403 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:26:37,404 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-09-21 18:26:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:26:37,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:26:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:26:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:26:37,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-09-21 18:26:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:26:37,405 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:26:37,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:26:37,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:26:37,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:26:37,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:26:37 BoogieIcfgContainer [2018-09-21 18:26:37,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:26:37,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:26:37,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:26:37,412 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:26:37,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:26:03" (3/4) ... [2018-09-21 18:26:37,416 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:26:37,422 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:26:37,422 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:26:37,422 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:26:37,423 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:26:37,423 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:26:37,433 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:26:37,434 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:26:37,435 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:26:37,567 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:26:37,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:26:37,572 INFO L168 Benchmark]: Toolchain (without parser) took 48289.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 947.8 MB in the beginning and 799.7 MB in the end (delta: 148.1 MB). Peak memory consumption was 337.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:26:37,573 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 18:26:37,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 931.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:26:37,574 INFO L168 Benchmark]: Boogie Preprocessor took 123.01 ms. Allocated memory is still 1.0 GB. Free memory was 931.7 MB in the beginning and 926.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:26:37,574 INFO L168 Benchmark]: RCFGBuilder took 13499.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 926.3 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:26:37,575 INFO L168 Benchmark]: TraceAbstraction took 33999.05 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 807.7 MB in the end (delta: 258.8 MB). Peak memory consumption was 327.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:26:37,576 INFO L168 Benchmark]: Witness Printer took 156.49 ms. Allocated memory is still 1.2 GB. Free memory was 807.7 MB in the beginning and 799.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:26:37,586 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 501.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 931.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 123.01 ms. Allocated memory is still 1.0 GB. Free memory was 931.7 MB in the beginning and 926.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 13499.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 926.3 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33999.05 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 807.7 MB in the end (delta: 258.8 MB). Peak memory consumption was 327.0 MB. Max. memory is 11.5 GB. * Witness Printer took 156.49 ms. Allocated memory is still 1.2 GB. Free memory was 807.7 MB in the beginning and 799.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 228]: 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, 155 locations, 1 error locations. SAFE Result, 33.9s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 27.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1209 SDtfs, 1718 SDslu, 5334 SDs, 0 SdLazy, 1036 SolverSat, 86 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 20.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 298 ConstructedInterpolants, 79 QuantifiedInterpolants, 132824 SizeOfPredicates, 66 NumberOfNonLiveVariables, 879 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...