./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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 /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_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 84dba58cac25505e0eb3c404a47a071a268de901 ......................................................................................................................................................................................................................................................................................................... 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 /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_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 84dba58cac25505e0eb3c404a47a071a268de901 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:55:52,860 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:52,861 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:52,874 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:52,874 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:52,875 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:52,877 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:52,879 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:52,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:52,881 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:52,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:52,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:52,884 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:52,885 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:52,886 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:52,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:52,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:52,891 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:52,893 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:52,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:52,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:52,898 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:52,900 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:52,901 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:52,901 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:52,902 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:52,903 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:52,904 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:52,905 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:52,906 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:52,906 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:52,907 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:52,907 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:52,907 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:52,909 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:52,910 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:52,910 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:55:52,935 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:52,936 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:52,939 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:52,940 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:52,941 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:52,941 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:52,941 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:52,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:52,941 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:52,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:55:52,942 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:52,942 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:52,942 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:52,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:52,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:52,942 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:52,944 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:52,944 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:52,944 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:52,945 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:52,945 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:52,945 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:52,945 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:52,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:52,946 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:52,946 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:52,946 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:52,946 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:55:52,947 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:52,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:55:52,947 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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-11-28 17:55:53,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:53,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:53,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:53,042 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:53,043 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:53,043 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-11-28 17:55:53,100 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1500005/7316fd02c0e447e8b13112f177e353eb/FLAG75355dc84 [2018-11-28 17:55:53,614 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:53,615 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-11-28 17:55:53,623 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1500005/7316fd02c0e447e8b13112f177e353eb/FLAG75355dc84 [2018-11-28 17:55:53,954 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1500005/7316fd02c0e447e8b13112f177e353eb [2018-11-28 17:55:53,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:53,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:53,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:53,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:53,965 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:53,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:53" (1/1) ... [2018-11-28 17:55:53,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ae0b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:53, skipping insertion in model container [2018-11-28 17:55:53,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:53" (1/1) ... [2018-11-28 17:55:53,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:54,006 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:54,204 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:54,211 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:54,264 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:54,294 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:54,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54 WrapperNode [2018-11-28 17:55:54,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:54,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:54,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:54,297 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:54,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:54,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:54,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:54,326 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:54,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (1/1) ... [2018-11-28 17:55:54,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:54,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:54,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:54,439 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:54,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (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 [2018-11-28 17:55:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:55:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:55:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 17:55:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 17:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-28 17:55:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-28 17:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:55:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:55,116 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:55,116 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 17:55:55,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:55 BoogieIcfgContainer [2018-11-28 17:55:55,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:55,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:55,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:55,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:55,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:53" (1/3) ... [2018-11-28 17:55:55,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ad625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:55, skipping insertion in model container [2018-11-28 17:55:55,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:54" (2/3) ... [2018-11-28 17:55:55,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ad625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:55, skipping insertion in model container [2018-11-28 17:55:55,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:55" (3/3) ... [2018-11-28 17:55:55,127 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-11-28 17:55:55,138 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:55,146 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:55,164 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:55,198 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:55,198 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:55,199 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:55,199 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:55,199 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:55,199 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:55,199 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:55,200 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:55,200 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:55,219 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-28 17:55:55,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:55:55,225 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:55,226 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:55,228 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:55,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:55,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1881433434, now seen corresponding path program 1 times [2018-11-28 17:55:55,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:55,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:55,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:55,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:55,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:55:55,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:55,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:55,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:55,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:55,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:55,409 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-28 17:55:55,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:55,433 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2018-11-28 17:55:55,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:55,435 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 17:55:55,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:55,447 INFO L225 Difference]: With dead ends: 86 [2018-11-28 17:55:55,448 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 17:55:55,452 INFO L631 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 [2018-11-28 17:55:55,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 17:55:55,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 17:55:55,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 17:55:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2018-11-28 17:55:55,494 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2018-11-28 17:55:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:55,494 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2018-11-28 17:55:55,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-11-28 17:55:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:55:55,496 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:55,496 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:55,496 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:55,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:55,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1135906069, now seen corresponding path program 1 times [2018-11-28 17:55:55,497 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:55,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:55,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:55,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:55,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:55,626 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:55:55,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:55 BoogieIcfgContainer [2018-11-28 17:55:55,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:55,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:55,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:55,661 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:55,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:55" (3/4) ... [2018-11-28 17:55:55,666 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:55:55,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:55,667 INFO L168 Benchmark]: Toolchain (without parser) took 1708.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:55,669 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:55,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.03 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:55,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.08 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:55,671 INFO L168 Benchmark]: Boogie Preprocessor took 113.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -209.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:55,672 INFO L168 Benchmark]: RCFGBuilder took 678.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:55,673 INFO L168 Benchmark]: TraceAbstraction took 542.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:55,674 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:55,680 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.03 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.08 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 113.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -209.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 678.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 542.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418244, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418245] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [\old(x)=10737418245, \result=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L91] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L91] double res = ceil_double(x); [L94] CALL, EXPR isnan_double(res) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L15] return x != x; VAL [\old(x)=10737418245, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L94] RET, EXPR isnan_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=10737418245, x=10737418245] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 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=47occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 0.1.24-91b1670 [2018-11-28 17:55:57,945 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:57,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:57,960 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:57,960 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:57,962 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:57,963 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:57,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:57,967 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:57,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:57,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:57,970 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:57,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:57,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:57,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:57,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:57,975 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:57,978 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:57,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:57,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:57,983 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:57,985 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:57,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:57,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:57,989 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:57,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:57,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:57,992 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:57,993 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:57,995 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:57,995 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:57,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:57,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:57,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:57,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:57,999 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:57,999 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:55:58,017 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:58,017 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:58,018 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:58,019 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:58,020 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:58,020 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:58,020 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:58,020 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:58,021 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:58,021 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:58,021 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:58,021 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:58,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:58,021 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:58,023 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:55:58,023 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:55:58,023 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:58,023 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:58,024 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:58,024 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:58,024 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:58,025 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:58,025 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:58,025 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:58,025 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:58,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:58,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:58,026 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:58,026 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:55:58,026 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:58,027 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:55:58,028 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:55:58,028 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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-11-28 17:55:58,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:58,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:58,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:58,103 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:58,103 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:58,104 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-11-28 17:55:58,165 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d04f3896/16ab356d569549978fe52e8d76885ccb/FLAG78623db5c [2018-11-28 17:55:58,687 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:58,688 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-11-28 17:55:58,696 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d04f3896/16ab356d569549978fe52e8d76885ccb/FLAG78623db5c [2018-11-28 17:55:59,008 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d04f3896/16ab356d569549978fe52e8d76885ccb [2018-11-28 17:55:59,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:59,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:59,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:59,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:59,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:59,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e60080c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59, skipping insertion in model container [2018-11-28 17:55:59,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:59,061 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:59,321 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:59,332 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:59,388 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:59,417 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:59,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59 WrapperNode [2018-11-28 17:55:59,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:59,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:59,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:59,418 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:59,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:59,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:59,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:59,450 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:59,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (1/1) ... [2018-11-28 17:55:59,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:59,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:59,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:59,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:59,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (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 [2018-11-28 17:55:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 17:55:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 17:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:55:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:55:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-28 17:55:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-28 17:55:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:55:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:56:00,140 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:56:01,768 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:56:01,768 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 17:56:01,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:01 BoogieIcfgContainer [2018-11-28 17:56:01,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:56:01,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:56:01,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:56:01,774 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:56:01,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:59" (1/3) ... [2018-11-28 17:56:01,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fb75a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:01, skipping insertion in model container [2018-11-28 17:56:01,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:59" (2/3) ... [2018-11-28 17:56:01,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fb75a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:01, skipping insertion in model container [2018-11-28 17:56:01,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:01" (3/3) ... [2018-11-28 17:56:01,779 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-11-28 17:56:01,790 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:56:01,802 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:56:01,820 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:56:01,855 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:56:01,855 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:56:01,856 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:56:01,856 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:56:01,856 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:56:01,857 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:56:01,857 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:56:01,857 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:56:01,857 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:56:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-11-28 17:56:01,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:56:01,885 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:01,887 INFO L402 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] [2018-11-28 17:56:01,889 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:01,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:01,895 INFO L82 PathProgramCache]: Analyzing trace with hash -645750269, now seen corresponding path program 1 times [2018-11-28 17:56:01,899 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:01,899 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:56:01,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:01,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:01,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:02,000 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:02,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:02,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:56:02,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:56:02,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:56:02,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:02,041 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-11-28 17:56:02,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:02,066 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2018-11-28 17:56:02,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:56:02,067 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 17:56:02,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:02,079 INFO L225 Difference]: With dead ends: 84 [2018-11-28 17:56:02,079 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 17:56:02,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:02,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 17:56:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 17:56:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 17:56:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2018-11-28 17:56:02,133 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 22 [2018-11-28 17:56:02,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:02,134 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2018-11-28 17:56:02,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:56:02,134 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2018-11-28 17:56:02,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:56:02,136 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:02,136 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:02,137 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:02,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:02,137 INFO L82 PathProgramCache]: Analyzing trace with hash 938296292, now seen corresponding path program 1 times [2018-11-28 17:56:02,139 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:02,139 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 [2018-11-28 17:56:02,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:02,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:02,683 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:02,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:02,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:56:02,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:56:02,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:56:02,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:56:02,700 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 9 states. [2018-11-28 17:56:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:05,061 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2018-11-28 17:56:05,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:56:05,062 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 17:56:05,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:05,066 INFO L225 Difference]: With dead ends: 51 [2018-11-28 17:56:05,066 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 17:56:05,068 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:56:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 17:56:05,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-11-28 17:56:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 17:56:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2018-11-28 17:56:05,080 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 23 [2018-11-28 17:56:05,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:05,082 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2018-11-28 17:56:05,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:56:05,082 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2018-11-28 17:56:05,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:56:05,083 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:05,083 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:05,084 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:05,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:05,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1029166427, now seen corresponding path program 1 times [2018-11-28 17:56:05,085 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:05,086 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 [2018-11-28 17:56:05,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:05,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:06,018 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-28 17:56:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:06,867 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:06,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:06,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:56:06,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:56:06,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:56:06,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:56:06,885 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 9 states. [2018-11-28 17:56:10,206 WARN L180 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 17:56:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:13,087 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-11-28 17:56:13,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:56:13,089 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 17:56:13,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:13,092 INFO L225 Difference]: With dead ends: 49 [2018-11-28 17:56:13,092 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 17:56:13,093 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:56:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 17:56:13,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 17:56:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 17:56:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-28 17:56:13,100 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 23 [2018-11-28 17:56:13,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:13,100 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-28 17:56:13,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:56:13,101 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-28 17:56:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:56:13,102 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:13,103 INFO L402 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] [2018-11-28 17:56:13,103 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:13,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:13,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1513115684, now seen corresponding path program 1 times [2018-11-28 17:56:13,104 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:13,104 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 [2018-11-28 17:56:13,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:13,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:13,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:13,456 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:13,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:13,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:56:13,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:56:13,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:56:13,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:56:13,472 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-11-28 17:56:16,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:16,830 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2018-11-28 17:56:16,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 17:56:16,832 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:56:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:16,834 INFO L225 Difference]: With dead ends: 67 [2018-11-28 17:56:16,834 INFO L226 Difference]: Without dead ends: 40 [2018-11-28 17:56:16,835 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-28 17:56:16,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-28 17:56:16,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2018-11-28 17:56:16,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 17:56:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-28 17:56:16,842 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-11-28 17:56:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:16,843 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-28 17:56:16,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:56:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-28 17:56:16,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 17:56:16,845 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:16,845 INFO L402 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] [2018-11-28 17:56:16,846 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:16,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:16,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1571354609, now seen corresponding path program 1 times [2018-11-28 17:56:16,846 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:16,847 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 [2018-11-28 17:56:16,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:17,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:17,244 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:17,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:17,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 17:56:17,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 17:56:17,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 17:56:17,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 17:56:17,263 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 8 states. [2018-11-28 17:56:17,969 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-11-28 17:56:18,809 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-11-28 17:56:19,015 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-11-28 17:56:19,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:19,227 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-11-28 17:56:19,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 17:56:19,228 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-11-28 17:56:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:19,228 INFO L225 Difference]: With dead ends: 40 [2018-11-28 17:56:19,228 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:56:19,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-11-28 17:56:19,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:56:19,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:56:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:56:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:56:19,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-28 17:56:19,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:19,230 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:56:19,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 17:56:19,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:56:19,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:56:19,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:56:19,526 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-11-28 17:56:19,529 INFO L451 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 15) the Hoare annotation is: true [2018-11-28 17:56:19,529 INFO L448 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-11-28 17:56:19,529 INFO L448 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-11-28 17:56:19,530 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:56:19,530 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:56:19,530 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:56:19,530 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-11-28 17:56:19,530 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-11-28 17:56:19,530 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-11-28 17:56:19,530 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-11-28 17:56:19,530 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-11-28 17:56:19,531 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-11-28 17:56:19,535 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-11-28 17:56:19,535 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-11-28 17:56:19,535 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-11-28 17:56:19,535 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-11-28 17:56:19,535 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-11-28 17:56:19,535 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-11-28 17:56:19,536 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:56:19,539 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:56:19,539 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:56:19,539 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:56:19,539 INFO L448 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-11-28 17:56:19,540 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-11-28 17:56:19,540 INFO L444 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 .cse0))) [2018-11-28 17:56:19,540 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 100) the Hoare annotation is: true [2018-11-28 17:56:19,540 INFO L448 ceAbstractionStarter]: For program point L94-1(lines 94 97) no Hoare annotation was computed. [2018-11-28 17:56:19,540 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 100) no Hoare annotation was computed. [2018-11-28 17:56:19,541 INFO L444 ceAbstractionStarter]: At program point L91(line 91) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2018-11-28 17:56:19,541 INFO L448 ceAbstractionStarter]: For program point L91-1(line 91) no Hoare annotation was computed. [2018-11-28 17:56:19,541 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 100) no Hoare annotation was computed. [2018-11-28 17:56:19,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:56:19 BoogieIcfgContainer [2018-11-28 17:56:19,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:56:19,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:56:19,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:56:19,557 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:56:19,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:01" (3/4) ... [2018-11-28 17:56:19,561 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:56:19,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-11-28 17:56:19,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:56:19,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-11-28 17:56:19,569 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:56:19,575 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-28 17:56:19,575 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 17:56:19,576 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:56:19,603 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:56:19,647 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:56:19,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:56:19,648 INFO L168 Benchmark]: Toolchain (without parser) took 20636.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 954.0 MB in the beginning and 834.1 MB in the end (delta: 119.9 MB). Peak memory consumption was 221.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:19,650 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:19,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.36 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 941.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:19,651 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.75 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:19,652 INFO L168 Benchmark]: Boogie Preprocessor took 59.60 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:19,652 INFO L168 Benchmark]: RCFGBuilder took 2258.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -132.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:19,653 INFO L168 Benchmark]: TraceAbstraction took 17786.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 841.0 MB in the end (delta: 227.8 MB). Peak memory consumption was 227.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:19,654 INFO L168 Benchmark]: Witness Printer took 91.08 ms. Allocated memory is still 1.1 GB. Free memory was 841.0 MB in the beginning and 834.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:19,659 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 403.36 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 941.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.75 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.60 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2258.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -132.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17786.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 841.0 MB in the end (delta: 227.8 MB). Peak memory consumption was 227.8 MB. Max. memory is 11.5 GB. * Witness Printer took 91.08 ms. Allocated memory is still 1.1 GB. Free memory was 841.0 MB in the beginning and 834.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: 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 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. SAFE Result, 17.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 13.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 186 SDtfs, 249 SDslu, 649 SDs, 0 SdLazy, 326 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 116 ConstructedInterpolants, 21 QuantifiedInterpolants, 18833 SizeOfPredicates, 16 NumberOfNonLiveVariables, 333 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...