/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0663a_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_0663a_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 4efa6b9ac5f17994ac853fda671607d1380ebffe --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_0663a_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 4efa6b9ac5f17994ac853fda671607d1380ebffe --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:22:51,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:22:51,724 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:22:51,737 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:22:51,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:22:51,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:22:51,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:22:51,742 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:22:51,744 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:22:51,745 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:22:51,745 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:22:51,746 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:22:51,747 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:22:51,748 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:22:51,749 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:22:51,750 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:22:51,751 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:22:51,752 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:22:51,755 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:22:51,756 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:22:51,757 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:22:51,759 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:22:51,761 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:22:51,762 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:22:51,762 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:22:51,763 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:22:51,764 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:22:51,765 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:22:51,766 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:22:51,767 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:22:51,767 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:22:51,768 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:22:51,768 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:22:51,769 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:22:51,770 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:22:51,770 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:22:51,771 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:22:51,790 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:22:51,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:22:51,792 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:22:51,792 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:22:51,792 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:22:51,793 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:22:51,793 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:22:51,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:22:51,793 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:22:51,793 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:22:51,794 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:22:51,794 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:22:51,794 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:22:51,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:22:51,794 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:22:51,795 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:22:51,795 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:22:51,796 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:22:51,796 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:22:51,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:22:51,796 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:22:51,796 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:22:51,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:51,797 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:22:51,797 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:22:51,797 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:22:51,797 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:22:51,799 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:22:51,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:22:51,799 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 -> 4efa6b9ac5f17994ac853fda671607d1380ebffe Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:22:51,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:22:51,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:22:51,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:22:51,880 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:22:51,881 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:22:51,881 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0663a_true-unreach-call.c [2018-09-21 18:22:52,263 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62b82bb3/4b9d1bdd7232453ab50b2280128eb89d/FLAGf7c45154a [2018-09-21 18:22:52,449 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:22:52,450 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0663a_true-unreach-call.c [2018-09-21 18:22:52,463 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62b82bb3/4b9d1bdd7232453ab50b2280128eb89d/FLAGf7c45154a [2018-09-21 18:22:52,486 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62b82bb3/4b9d1bdd7232453ab50b2280128eb89d [2018-09-21 18:22:52,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:22:52,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:22:52,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:52,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:22:52,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:22:52,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666cdaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52, skipping insertion in model container [2018-09-21 18:22:52,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,526 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:22:52,847 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:52,866 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:22:52,911 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:52,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52 WrapperNode [2018-09-21 18:22:52,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:52,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:22:52,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:22:52,965 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:22:52,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:52,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:53,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:53,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:53,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... [2018-09-21 18:22:53,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:22:53,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:22:53,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:22:53,029 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:22:53,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:22:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:22:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:22:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:22:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:22:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:22:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:22:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:22:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:22:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:22:54,382 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:22:54,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:54 BoogieIcfgContainer [2018-09-21 18:22:54,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:22:54,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:22:54,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:22:54,389 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:22:54,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:22:52" (1/3) ... [2018-09-21 18:22:54,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be099c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:54, skipping insertion in model container [2018-09-21 18:22:54,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:52" (2/3) ... [2018-09-21 18:22:54,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be099c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:54, skipping insertion in model container [2018-09-21 18:22:54,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:54" (3/3) ... [2018-09-21 18:22:54,394 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0663a_true-unreach-call.c [2018-09-21 18:22:54,405 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:22:54,414 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:22:54,457 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:22:54,457 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:22:54,458 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:22:54,458 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:22:54,458 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:22:54,458 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:22:54,459 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:22:54,459 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:22:54,459 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:22:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:22:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:22:54,500 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:54,501 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:22:54,505 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:54,511 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:22:54,513 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:22:54,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:22:54,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:54,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:54,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:54,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:22:54,695 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:54,695 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:22:54,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:22:54,711 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:22:54,712 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:22:54,715 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:22:54,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:54,750 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:22:54,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:22:54,751 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:22:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:54,765 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:22:54,765 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:22:54,768 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:22:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:22:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:22:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:22:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:22:54,825 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:22:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:54,826 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:22:54,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:22:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:22:54,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:22:54,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:54,829 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] [2018-09-21 18:22:54,830 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:54,830 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:22:54,830 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:22:54,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:22:54,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:54,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:54,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:22:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:22:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:22:55,014 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:22:55,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:22:55 BoogieIcfgContainer [2018-09-21 18:22:55,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:22:55,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:22:55,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:22:55,073 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:22:55,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:54" (3/4) ... [2018-09-21 18:22:55,078 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:22:55,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:22:55,079 INFO L168 Benchmark]: Toolchain (without parser) took 2584.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -88.8 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:55,081 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:22:55,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.17 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:55,083 INFO L168 Benchmark]: Boogie Preprocessor took 63.50 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:22:55,084 INFO L168 Benchmark]: RCFGBuilder took 1354.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:55,085 INFO L168 Benchmark]: TraceAbstraction took 687.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:55,086 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:22:55,091 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 465.17 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.50 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1354.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 687.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.34 ms. Allocated memory is still 1.2 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: 229]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 228, overapproximation of someUnaryDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 133, overapproximation of someUnaryFLOAToperation at line 216, 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)=6442450955, \old(one_atan)=6442450945, \old(pi)=6442450950, \old(pi_lo_atan2)=6442450965, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450949, \old(tiny_atan2)=6442450960, \old(zero_atan2)=6442450959, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L216] float x = -0.0f; [L217] float y = __VERIFIER_nondet_float(); [L224] COND TRUE y > 0.0f VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=6442450958, zero_atan2=0] [L225] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=6442450964, \old(y)=6442450958, 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)=6442450964, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L123] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450956:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L124] FCALL gf_u.value = (x) VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450956:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L125] EXPR, FCALL gf_u.word VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450956:0}, 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=6442450964, y=6442450958, zero_atan2=0] [L125] (hx) = gf_u.word VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450956:0}, 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=6442450964, y=6442450958, zero_atan2=0] [L125] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450957, \old(x)=6442450964, \old(y)=6442450958, gf_u={6442450956:0}, 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=6442450964, y=6442450958, zero_atan2=0] [L126] COND FALSE !(0) VAL [\old(x)=6442450964, \old(y)=6442450958, 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=6442450964, y=6442450958, zero_atan2=0] [L127] ix = hx & 0x7fffffff VAL [\old(x)=6442450964, \old(y)=6442450958, 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=6442450964, y=6442450958, zero_atan2=0] [L129] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450954:0}, 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=6442450964, y=6442450958, zero_atan2=0] [L130] FCALL gf_u.value = (y) VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450954:0}, 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=6442450964, y=6442450958, zero_atan2=0] [L131] EXPR, FCALL gf_u.word VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450954:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L131] (hy) = gf_u.word VAL [\old(x)=6442450964, \old(y)=6442450958, gf_u={6442450954:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L131] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=6442450966, \old(x)=6442450964, \old(y)=6442450958, gf_u={6442450954:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L132] COND FALSE !(0) VAL [\old(x)=6442450964, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L133] iy = hy & 0x7fffffff VAL [\old(x)=6442450964, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] RET return x + y; VAL [\old(x)=6442450964, \old(y)=6442450958, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L225] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=6442450953, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L225] float res = __ieee754_atan2f(y, x); [L228] COND TRUE res != pi_o_2 VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450953, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] [L229] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450953, tiny_atan2=1/1000000000000000000000000000000, x=6442450964, y=6442450958, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 157 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 197 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:22:57,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:22:57,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:22:57,516 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:22:57,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:22:57,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:22:57,519 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:22:57,521 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:22:57,523 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:22:57,524 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:22:57,525 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:22:57,526 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:22:57,527 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:22:57,528 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:22:57,529 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:22:57,530 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:22:57,531 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:22:57,533 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:22:57,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:22:57,538 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:22:57,539 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:22:57,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:22:57,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:22:57,543 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:22:57,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:22:57,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:22:57,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:22:57,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:22:57,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:22:57,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:22:57,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:22:57,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:22:57,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:22:57,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:22:57,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:22:57,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:22:57,554 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:22:57,570 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:22:57,570 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:22:57,571 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:22:57,572 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:22:57,573 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:22:57,573 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:22:57,573 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:22:57,573 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:22:57,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:22:57,574 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:22:57,574 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:22:57,574 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:22:57,574 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:22:57,574 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:22:57,576 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:22:57,576 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:22:57,576 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:22:57,577 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:22:57,577 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:22:57,577 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:22:57,577 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:22:57,577 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:22:57,578 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:22:57,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:57,578 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:22:57,578 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:22:57,578 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:22:57,578 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:22:57,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:22:57,579 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:22:57,579 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:22:57,579 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 -> 4efa6b9ac5f17994ac853fda671607d1380ebffe Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:22:57,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:22:57,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:22:57,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:22:57,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:22:57,684 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:22:57,685 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0663a_true-unreach-call.c [2018-09-21 18:22:58,048 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497f88c84/ac5db0a0e2f6414da0751e39ffafc91f/FLAG5f316ccf8 [2018-09-21 18:22:58,254 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:22:58,255 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0663a_true-unreach-call.c [2018-09-21 18:22:58,265 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497f88c84/ac5db0a0e2f6414da0751e39ffafc91f/FLAG5f316ccf8 [2018-09-21 18:22:58,283 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497f88c84/ac5db0a0e2f6414da0751e39ffafc91f [2018-09-21 18:22:58,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:22:58,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:22:58,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:58,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:22:58,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:22:58,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619684cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58, skipping insertion in model container [2018-09-21 18:22:58,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,319 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:22:58,598 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:58,625 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:22:58,681 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:22:58,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58 WrapperNode [2018-09-21 18:22:58,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:22:58,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:22:58,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:22:58,742 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:22:58,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... [2018-09-21 18:22:58,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:22:58,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:22:58,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:22:58,838 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:22:58,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:22:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:22:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:22:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:22:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:22:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:22:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:22:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:22:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:22:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:22:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:22:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:22:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:22:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:22:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:22:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:22:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:22:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:22:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:22:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:22:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:22:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:22:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:22:59,295 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:59,323 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:59,411 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:59,439 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:00,395 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:00,421 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:03,405 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:03,464 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:10,561 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:12,741 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:13,616 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:23:13,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:13 BoogieIcfgContainer [2018-09-21 18:23:13,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:23:13,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:23:13,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:23:13,622 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:23:13,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:22:58" (1/3) ... [2018-09-21 18:23:13,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f4375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:13, skipping insertion in model container [2018-09-21 18:23:13,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:22:58" (2/3) ... [2018-09-21 18:23:13,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f4375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:13, skipping insertion in model container [2018-09-21 18:23:13,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:13" (3/3) ... [2018-09-21 18:23:13,627 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0663a_true-unreach-call.c [2018-09-21 18:23:13,636 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:23:13,645 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:23:13,682 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:23:13,683 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:23:13,683 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:23:13,683 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:23:13,684 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:23:13,684 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:23:13,684 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:23:13,684 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:23:13,684 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:23:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:23:13,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:23:13,716 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:13,718 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:13,721 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:13,727 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:23:13,732 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:13,733 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 18:23:13,743 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 18:23:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:13,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:13,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:13,893 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:13,907 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:13,907 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:23:13,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:23:13,928 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:23:13,929 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:23:13,931 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:23:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:13,965 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:23:13,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:23:13,967 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:23:13,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:13,981 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:23:13,981 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:23:13,985 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:23:14,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:23:14,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:23:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:23:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:23:14,049 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:23:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:14,050 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:23:14,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:23:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:23:14,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:23:14,052 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:14,053 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:14,053 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:14,053 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:23:14,055 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:14,055 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 18:23:14,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:14,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:14,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:14,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:14,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:14,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:14,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:14,619 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:23:14,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:14,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:14,713 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:14,739 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:14,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:14,827 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:23:15,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:15,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:15,315 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:15,346 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:15,418 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 18:23:15,419 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:36 [2018-09-21 18:23:15,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:15,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:15,597 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:15,602 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:15,635 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 18:23:15,636 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:24 [2018-09-21 18:23:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:16,124 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:16,147 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:16,148 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:23:16,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:23:16,154 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:23:16,154 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:23:16,155 INFO L87 Difference]: Start difference. First operand 152 states and 191 transitions. Second operand 14 states. [2018-09-21 18:23:16,699 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-21 18:23:18,154 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 18:23:18,879 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:23:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:21,324 INFO L93 Difference]: Finished difference Result 154 states and 192 transitions. [2018-09-21 18:23:21,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:23:21,326 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-09-21 18:23:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:21,329 INFO L225 Difference]: With dead ends: 154 [2018-09-21 18:23:21,330 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:23:21,331 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-09-21 18:23:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:23:21,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:23:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:23:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2018-09-21 18:23:21,347 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 37 [2018-09-21 18:23:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:21,348 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2018-09-21 18:23:21,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:23:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2018-09-21 18:23:21,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:23:21,351 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:21,351 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:21,351 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:21,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1076772893, now seen corresponding path program 1 times [2018-09-21 18:23:21,352 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:21,352 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 18:23:21,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:21,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:21,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:21,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:21,518 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:21,521 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:21,532 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:21,532 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:21,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:21,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:21,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:21,564 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:21,568 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:21,568 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:21,636 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:21,655 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:21,655 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:23:21,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:23:21,655 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:23:21,656 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:23:21,656 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 8 states. [2018-09-21 18:23:25,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:25,118 INFO L93 Difference]: Finished difference Result 156 states and 193 transitions. [2018-09-21 18:23:25,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:23:25,119 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2018-09-21 18:23:25,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:25,121 INFO L225 Difference]: With dead ends: 156 [2018-09-21 18:23:25,121 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:23:25,122 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:23:25,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:23:25,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:23:25,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:23:25,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 188 transitions. [2018-09-21 18:23:25,138 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 188 transitions. Word has length 42 [2018-09-21 18:23:25,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:25,138 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 188 transitions. [2018-09-21 18:23:25,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:23:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 188 transitions. [2018-09-21 18:23:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:23:25,142 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:25,142 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:25,142 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:25,142 INFO L82 PathProgramCache]: Analyzing trace with hash 698234469, now seen corresponding path program 1 times [2018-09-21 18:23:25,143 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:25,143 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:23:25,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:25,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:25,460 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:23:25,778 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:23:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:25,978 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:25,989 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:25,990 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:23:25,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:23:25,990 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:23:25,990 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:23:25,991 INFO L87 Difference]: Start difference. First operand 152 states and 188 transitions. Second operand 7 states. [2018-09-21 18:23:35,531 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:23:35,833 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:23:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:38,447 INFO L93 Difference]: Finished difference Result 156 states and 191 transitions. [2018-09-21 18:23:38,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:23:38,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2018-09-21 18:23:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:38,450 INFO L225 Difference]: With dead ends: 156 [2018-09-21 18:23:38,450 INFO L226 Difference]: Without dead ends: 150 [2018-09-21 18:23:38,450 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:23:38,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-09-21 18:23:38,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-09-21 18:23:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-09-21 18:23:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 185 transitions. [2018-09-21 18:23:38,461 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 185 transitions. Word has length 42 [2018-09-21 18:23:38,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:38,461 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 185 transitions. [2018-09-21 18:23:38,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:23:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 185 transitions. [2018-09-21 18:23:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:23:38,464 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:38,464 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:38,464 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:38,465 INFO L82 PathProgramCache]: Analyzing trace with hash -957616091, now seen corresponding path program 1 times [2018-09-21 18:23:38,466 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:38,466 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:23:38,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:38,556 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:38,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:38,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:38,590 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:38,596 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:38,606 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:38,607 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:38,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:38,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:38,634 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:38,637 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:38,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:38,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:38,928 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:38,942 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:38,942 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:23:38,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:23:38,942 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:23:38,943 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:23:38,943 INFO L87 Difference]: Start difference. First operand 150 states and 185 transitions. Second operand 9 states. [2018-09-21 18:23:40,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:40,704 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2018-09-21 18:23:40,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:23:40,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:23:40,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:40,708 INFO L225 Difference]: With dead ends: 193 [2018-09-21 18:23:40,708 INFO L226 Difference]: Without dead ends: 144 [2018-09-21 18:23:40,708 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 18:23:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-09-21 18:23:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-09-21 18:23:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-09-21 18:23:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 174 transitions. [2018-09-21 18:23:40,717 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 174 transitions. Word has length 42 [2018-09-21 18:23:40,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:40,719 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 174 transitions. [2018-09-21 18:23:40,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:23:40,719 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 174 transitions. [2018-09-21 18:23:40,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 18:23:40,720 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:40,721 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:23:40,722 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:40,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1367585927, now seen corresponding path program 1 times [2018-09-21 18:23:40,722 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:40,722 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) [2018-09-21 18:23:40,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:23:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:40,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:40,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:23:40,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:23:40,878 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:40,882 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:40,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:40,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:23:40,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:23:40,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:23:40,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:23:40,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:40,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:23:40,923 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:23:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:41,183 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:41,198 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:41,199 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:23:41,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:23:41,199 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:23:41,199 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:23:41,200 INFO L87 Difference]: Start difference. First operand 144 states and 174 transitions. Second operand 9 states. [2018-09-21 18:23:42,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:42,536 INFO L93 Difference]: Finished difference Result 140 states and 170 transitions. [2018-09-21 18:23:42,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:23:42,537 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-09-21 18:23:42,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:42,538 INFO L225 Difference]: With dead ends: 140 [2018-09-21 18:23:42,538 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:23:42,538 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 18:23:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:23:42,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:23:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:23:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:23:42,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-09-21 18:23:42,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:42,541 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:23:42,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:23:42,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:23:42,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:23:42,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:23:42 BoogieIcfgContainer [2018-09-21 18:23:42,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:23:42,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:23:42,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:23:42,547 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:23:42,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:13" (3/4) ... [2018-09-21 18:23:42,551 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:23:42,557 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:23:42,557 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:23:42,557 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:23:42,558 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:23:42,558 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:23:42,570 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:23:42,571 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:23:42,574 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:23:42,707 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:23:42,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:23:42,708 INFO L168 Benchmark]: Toolchain (without parser) took 44419.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -72.4 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:42,710 INFO L168 Benchmark]: CDTParser took 0.24 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 18:23:42,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.00 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 18:23:42,711 INFO L168 Benchmark]: Boogie Preprocessor took 96.15 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:42,711 INFO L168 Benchmark]: RCFGBuilder took 14780.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -143.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:42,712 INFO L168 Benchmark]: TraceAbstraction took 28927.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.4 MB). Peak memory consumption was 106.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:42,713 INFO L168 Benchmark]: Witness Printer took 160.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:42,716 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 448.00 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 96.15 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 14780.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -143.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28927.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.4 MB). Peak memory consumption was 106.4 MB. Max. memory is 11.5 GB. * Witness Printer took 160.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 229]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 157 locations, 1 error locations. SAFE Result, 28.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 24.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1085 SDtfs, 1437 SDslu, 4568 SDs, 0 SdLazy, 774 SolverSat, 69 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 19.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 219 ConstructedInterpolants, 45 QuantifiedInterpolants, 83190 SizeOfPredicates, 42 NumberOfNonLiveVariables, 649 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...