./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1091.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: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1091.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 0.1.25-f470102 [2019-11-28 16:49:41,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:41,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:41,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:41,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:41,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:41,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:41,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:41,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:41,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:41,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:41,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:41,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:41,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:41,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:41,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:41,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:41,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:41,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:41,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:41,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:41,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:41,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:41,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:41,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:41,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:41,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:41,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:41,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:41,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:41,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:41,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:41,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:41,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:41,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:41,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:41,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:41,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:41,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:41,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:41,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:41,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:49:41,913 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:41,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:41,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:41,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:41,915 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:41,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:41,916 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:41,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:49:41,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:41,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:41,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:41,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:41,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:41,918 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:41,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:41,918 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:41,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:41,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:41,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:41,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:41,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:41,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:41,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:41,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:41,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:41,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:49:41,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:49:41,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:41,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:41,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 [2019-11-28 16:49:42,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:42,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:42,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:42,284 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:42,286 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:42,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-28 16:49:42,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78e42c17/1497da943d574a219e87b473d51d3126/FLAGa2a70c310 [2019-11-28 16:49:42,854 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:42,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-28 16:49:42,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78e42c17/1497da943d574a219e87b473d51d3126/FLAGa2a70c310 [2019-11-28 16:49:43,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78e42c17/1497da943d574a219e87b473d51d3126 [2019-11-28 16:49:43,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:49:43,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:49:43,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:43,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:49:43,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:49:43,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4685ae67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43, skipping insertion in model container [2019-11-28 16:49:43,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:49:43,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:49:43,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:43,465 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:49:43,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:43,599 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:49:43,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43 WrapperNode [2019-11-28 16:49:43,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:43,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:43,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:49:43,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:49:43,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:43,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:49:43,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:49:43,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:49:43,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... [2019-11-28 16:49:43,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:49:43,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:49:43,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:49:43,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:49:43,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:49:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:49:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:49:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:49:43,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:49:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:49:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:49:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:44,126 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:44,126 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 16:49:44,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:44 BoogieIcfgContainer [2019-11-28 16:49:44,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:44,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:44,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:44,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:44,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:43" (1/3) ... [2019-11-28 16:49:44,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3c4fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:44, skipping insertion in model container [2019-11-28 16:49:44,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:43" (2/3) ... [2019-11-28 16:49:44,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3c4fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:44, skipping insertion in model container [2019-11-28 16:49:44,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:44" (3/3) ... [2019-11-28 16:49:44,138 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-11-28 16:49:44,157 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:44,165 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:44,180 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:44,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:44,203 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:44,203 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:44,203 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:44,204 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:44,204 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:44,204 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:44,204 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:44,217 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-28 16:49:44,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 16:49:44,224 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:44,225 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:44,226 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:44,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-28 16:49:44,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:44,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045627932] [2019-11-28 16:49:44,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:44,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045627932] [2019-11-28 16:49:44,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:44,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:49:44,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348068623] [2019-11-28 16:49:44,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:44,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:49:44,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:44,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:44,382 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-28 16:49:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:44,409 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-28 16:49:44,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:44,411 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-28 16:49:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:44,423 INFO L225 Difference]: With dead ends: 66 [2019-11-28 16:49:44,424 INFO L226 Difference]: Without dead ends: 31 [2019-11-28 16:49:44,427 INFO L630 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 [2019-11-28 16:49:44,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-28 16:49:44,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-28 16:49:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 16:49:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-28 16:49:44,469 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-28 16:49:44,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:44,470 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-28 16:49:44,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-28 16:49:44,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:49:44,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:44,472 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:44,472 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:44,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:44,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-28 16:49:44,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:44,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850517708] [2019-11-28 16:49:44,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:44,603 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:49:44,604 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:49:44,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:44 BoogieIcfgContainer [2019-11-28 16:49:44,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:44,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:44,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:44,637 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:44,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:44" (3/4) ... [2019-11-28 16:49:44,641 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:49:44,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:44,645 INFO L168 Benchmark]: Toolchain (without parser) took 1433.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -101.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:44,645 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:49:44,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:44,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.34 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. [2019-11-28 16:49:44,648 INFO L168 Benchmark]: Boogie Preprocessor took 46.76 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. [2019-11-28 16:49:44,649 INFO L168 Benchmark]: RCFGBuilder took 435.65 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:44,649 INFO L168 Benchmark]: TraceAbstraction took 507.27 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. [2019-11-28 16:49:44,650 INFO L168 Benchmark]: Witness Printer took 5.16 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. [2019-11-28 16:49:44,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 388.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.34 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. * Boogie Preprocessor took 46.76 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. * RCFGBuilder took 435.65 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 507.27 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. * Witness Printer took 5.16 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 [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [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 [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = ceil_double(x); [L15] return x != x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-11-28 16:49:46,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:46,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:46,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:46,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:46,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:46,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:46,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:46,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:46,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:46,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:46,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:46,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:46,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:46,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:46,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:46,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:46,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:46,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:46,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:46,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:46,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:46,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:46,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:46,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:46,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:46,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:46,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:46,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:46,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:46,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:46,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:46,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:46,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:46,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:46,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:46,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:46,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:46,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:46,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:46,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:46,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:49:46,769 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:46,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:46,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:46,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:46,772 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:46,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:46,772 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:46,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:46,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:46,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:46,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:46,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:46,774 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:49:46,775 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:49:46,775 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:46,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:46,775 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:46,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:46,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:46,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:46,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:46,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:46,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:46,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:46,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:46,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:46,779 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:49:46,779 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:49:46,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:46,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:46,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:49:46,780 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 [2019-11-28 16:49:47,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:47,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:47,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:47,135 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:47,136 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:47,137 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-28 16:49:47,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2663132/2c6c8bc15c5547b497c02e8477dcf4a9/FLAG794486b84 [2019-11-28 16:49:47,691 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:47,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-28 16:49:47,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2663132/2c6c8bc15c5547b497c02e8477dcf4a9/FLAG794486b84 [2019-11-28 16:49:48,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2663132/2c6c8bc15c5547b497c02e8477dcf4a9 [2019-11-28 16:49:48,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:49:48,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:49:48,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:48,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:49:48,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:49:48,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4ecbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48, skipping insertion in model container [2019-11-28 16:49:48,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:49:48,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:49:48,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:48,318 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:49:48,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:48,469 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:49:48,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48 WrapperNode [2019-11-28 16:49:48,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:48,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:48,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:49:48,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:49:48,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:48,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:49:48,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:49:48,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:49:48,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (1/1) ... [2019-11-28 16:49:48,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:49:48,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:49:48,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:49:48,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:49:48,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (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 [2019-11-28 16:49:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-28 16:49:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-28 16:49:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:49:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:49:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:49:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:49:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:49:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:49,791 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:49,792 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 16:49:49,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:49 BoogieIcfgContainer [2019-11-28 16:49:49,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:49,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:49,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:49,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:49,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:48" (1/3) ... [2019-11-28 16:49:49,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198f376c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:49, skipping insertion in model container [2019-11-28 16:49:49,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:48" (2/3) ... [2019-11-28 16:49:49,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198f376c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:49, skipping insertion in model container [2019-11-28 16:49:49,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:49" (3/3) ... [2019-11-28 16:49:49,801 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-11-28 16:49:49,810 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:49,817 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:49,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:49,846 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:49,846 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:49,846 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:49,846 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:49,847 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:49,847 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:49,847 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:49,847 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-28 16:49:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 16:49:49,867 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:49,868 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:49,868 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:49,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:49,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-28 16:49:49,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:49,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411170595] [2019-11-28 16:49:49,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-28 16:49:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:49,996 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:49:50,001 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:50,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:50,014 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:50,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411170595] [2019-11-28 16:49:50,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:50,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:49:50,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320714474] [2019-11-28 16:49:50,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:50,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:50,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:50,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:50,045 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-28 16:49:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:50,068 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-28 16:49:50,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:50,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-28 16:49:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:50,082 INFO L225 Difference]: With dead ends: 66 [2019-11-28 16:49:50,082 INFO L226 Difference]: Without dead ends: 31 [2019-11-28 16:49:50,089 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:50,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-28 16:49:50,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-28 16:49:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 16:49:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-28 16:49:50,128 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-28 16:49:50,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:50,129 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-28 16:49:50,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:50,129 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-28 16:49:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:49:50,130 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:50,130 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:50,344 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:49:50,345 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:50,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:50,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-28 16:49:50,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:50,348 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404076364] [2019-11-28 16:49:50,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-28 16:49:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:50,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 16:49:50,462 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:50,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 16:49:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:50,602 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:50,717 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404076364] [2019-11-28 16:49:50,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:50,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-28 16:49:50,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476159186] [2019-11-28 16:49:50,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 16:49:50,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:50,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 16:49:50,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-28 16:49:50,721 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2019-11-28 16:49:51,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:51,975 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-11-28 16:49:51,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 16:49:51,977 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-28 16:49:51,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:51,978 INFO L225 Difference]: With dead ends: 42 [2019-11-28 16:49:51,979 INFO L226 Difference]: Without dead ends: 21 [2019-11-28 16:49:51,980 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-28 16:49:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-28 16:49:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-28 16:49:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-28 16:49:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-28 16:49:51,984 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-11-28 16:49:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:51,985 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-28 16:49:51,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 16:49:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-28 16:49:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:49:51,986 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:51,986 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:52,199 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:49:52,200 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:52,201 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-11-28 16:49:52,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:52,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315750886] [2019-11-28 16:49:52,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-28 16:49:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:52,376 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:49:52,378 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:52,518 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:52,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:52,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315750886] [2019-11-28 16:49:52,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:52,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-28 16:49:52,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966016222] [2019-11-28 16:49:52,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:49:52,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:52,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:49:52,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:49:52,707 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-11-28 16:49:52,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:52,985 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-28 16:49:52,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 16:49:52,987 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-28 16:49:52,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:52,987 INFO L225 Difference]: With dead ends: 21 [2019-11-28 16:49:52,988 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:49:52,988 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-28 16:49:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:49:52,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:49:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:49:52,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:49:52,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-28 16:49:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:52,990 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:49:52,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:49:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:49:52,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:49:53,191 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:49:53,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:49:53,355 INFO L246 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2019-11-28 16:49:53,355 INFO L246 CegarLoopResult]: For program point L52(lines 52 55) no Hoare annotation was computed. [2019-11-28 16:49:53,355 INFO L246 CegarLoopResult]: For program point L44(lines 44 49) no Hoare annotation was computed. [2019-11-28 16:49:53,355 INFO L246 CegarLoopResult]: For program point L94(lines 94 97) no Hoare annotation was computed. [2019-11-28 16:49:53,355 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:49:53,355 INFO L246 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-11-28 16:49:53,356 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:49:53,356 INFO L246 CegarLoopResult]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2019-11-28 16:49:53,356 INFO L246 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-28 16:49:53,356 INFO L246 CegarLoopResult]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-28 16:49:53,356 INFO L246 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2019-11-28 16:49:53,356 INFO L246 CegarLoopResult]: For program point L62(lines 62 69) no Hoare annotation was computed. [2019-11-28 16:49:53,357 INFO L246 CegarLoopResult]: For program point L29(lines 29 73) no Hoare annotation was computed. [2019-11-28 16:49:53,357 INFO L246 CegarLoopResult]: For program point L30(lines 30 50) no Hoare annotation was computed. [2019-11-28 16:49:53,357 INFO L246 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-28 16:49:53,357 INFO L242 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) [2019-11-28 16:49:53,357 INFO L246 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-28 16:49:53,358 INFO L242 CegarLoopResult]: At program point L80(lines 19 81) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2019-11-28 16:49:53,358 INFO L246 CegarLoopResult]: For program point L31(lines 31 39) no Hoare annotation was computed. [2019-11-28 16:49:53,358 INFO L242 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-28 16:49:53,358 INFO L246 CegarLoopResult]: For program point L32(lines 32 38) no Hoare annotation was computed. [2019-11-28 16:49:53,358 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:49:53,359 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2019-11-28 16:49:53,359 INFO L246 CegarLoopResult]: For program point L74(lines 74 79) no Hoare annotation was computed. [2019-11-28 16:49:53,359 INFO L246 CegarLoopResult]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2019-11-28 16:49:53,359 INFO L246 CegarLoopResult]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2019-11-28 16:49:53,359 INFO L249 CegarLoopResult]: At program point L99(lines 83 100) the Hoare annotation is: true [2019-11-28 16:49:53,359 INFO L246 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2019-11-28 16:49:53,360 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:49:53,360 INFO L246 CegarLoopResult]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-28 16:49:53,360 INFO L246 CegarLoopResult]: For program point L58(lines 58 59) no Hoare annotation was computed. [2019-11-28 16:49:53,360 INFO L246 CegarLoopResult]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-28 16:49:53,360 INFO L246 CegarLoopResult]: For program point L51(lines 51 73) no Hoare annotation was computed. [2019-11-28 16:49:53,360 INFO L246 CegarLoopResult]: For program point L35(lines 35 38) no Hoare annotation was computed. [2019-11-28 16:49:53,369 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,377 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:53 BoogieIcfgContainer [2019-11-28 16:49:53,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:53,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:53,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:53,388 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:53,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:49" (3/4) ... [2019-11-28 16:49:53,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:49:53,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 16:49:53,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 16:49:53,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:49:53,465 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-28 16:49:53,467 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) [2019-11-28 16:49:53,468 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-11-28 16:49:53,539 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:49:53,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:53,543 INFO L168 Benchmark]: Toolchain (without parser) took 5497.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 956.3 MB in the beginning and 978.6 MB in the end (delta: -22.3 MB). Peak memory consumption was 100.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:53,544 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:49:53,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:53,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.94 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. [2019-11-28 16:49:53,548 INFO L168 Benchmark]: Boogie Preprocessor took 40.54 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:53,548 INFO L168 Benchmark]: RCFGBuilder took 1228.45 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:53,549 INFO L168 Benchmark]: TraceAbstraction took 3588.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.3 MB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:53,549 INFO L168 Benchmark]: Witness Printer took 155.87 ms. Allocated memory is still 1.2 GB. Free memory was 985.3 MB in the beginning and 978.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:53,552 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 426.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.94 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. * Boogie Preprocessor took 40.54 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1228.45 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3588.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.3 MB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. * Witness Printer took 155.87 ms. Allocated memory is still 1.2 GB. Free memory was 985.3 MB in the beginning and 978.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 15]: Loop Invariant [2019-11-28 16:49:53,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 19]: Loop Invariant [2019-11-28 16:49:53,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-28 16:49:53,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:53,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 35 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3143 SizeOfPredicates, 18 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...