./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_double_range.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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-benchs/nan_double_range.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 dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e ......................................................................................................................................................................................................................................... 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 -ea -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-benchs/nan_double_range.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 dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:26:40,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:26:40,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:26:40,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:26:40,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:26:40,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:26:40,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:26:41,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:26:41,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:26:41,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:26:41,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:26:41,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:26:41,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:26:41,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:26:41,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:26:41,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:26:41,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:26:41,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:26:41,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:26:41,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:26:41,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:26:41,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:26:41,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:26:41,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:26:41,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:26:41,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:26:41,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:26:41,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:26:41,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:26:41,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:26:41,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:26:41,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:26:41,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:26:41,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:26:41,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:26:41,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:26:41,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:26:41,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:26:41,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:26:41,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:26:41,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:26:41,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:26:41,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:26:41,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:26:41,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:26:41,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:26:41,108 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:26:41,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:26:41,108 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:26:41,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:26:41,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:26:41,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:26:41,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:26:41,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:26:41,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:26:41,111 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:26:41,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:26:41,112 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:26:41,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:26:41,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:26:41,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:26:41,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:26:41,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:26:41,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:26:41,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:26:41,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:26:41,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:26:41,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:26:41,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:26:41,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:26:41,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:26:41,116 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 -> dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e [2020-07-28 17:26:41,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:26:41,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:26:41,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:26:41,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:26:41,474 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:26:41,475 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double_range.c [2020-07-28 17:26:41,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746591786/997c44cf685a48ea876b28715538095c/FLAG7bf90c021 [2020-07-28 17:26:41,975 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:26:41,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double_range.c [2020-07-28 17:26:41,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746591786/997c44cf685a48ea876b28715538095c/FLAG7bf90c021 [2020-07-28 17:26:42,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746591786/997c44cf685a48ea876b28715538095c [2020-07-28 17:26:42,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:26:42,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:26:42,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:26:42,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:26:42,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:26:42,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113c8f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42, skipping insertion in model container [2020-07-28 17:26:42,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:26:42,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:26:42,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:26:42,601 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:26:42,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:26:42,632 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:26:42,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42 WrapperNode [2020-07-28 17:26:42,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:26:42,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:26:42,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:26:42,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:26:42,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:26:42,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:26:42,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:26:42,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:26:42,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (1/1) ... [2020-07-28 17:26:42,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:26:42,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:26:42,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:26:42,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:26:42,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (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 [2020-07-28 17:26:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:26:42,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:26:43,101 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:26:43,102 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-28 17:26:43,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:26:43 BoogieIcfgContainer [2020-07-28 17:26:43,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:26:43,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:26:43,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:26:43,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:26:43,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:26:42" (1/3) ... [2020-07-28 17:26:43,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d60f902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:26:43, skipping insertion in model container [2020-07-28 17:26:43,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:42" (2/3) ... [2020-07-28 17:26:43,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d60f902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:26:43, skipping insertion in model container [2020-07-28 17:26:43,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:26:43" (3/3) ... [2020-07-28 17:26:43,141 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2020-07-28 17:26:43,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:26:43,175 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:26:43,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:26:43,240 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:26:43,240 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:26:43,240 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:26:43,240 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:26:43,241 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:26:43,241 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:26:43,241 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:26:43,241 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:26:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 17:26:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:26:43,262 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:26:43,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:26:43,264 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:26:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:26:43,271 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2020-07-28 17:26:43,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:26:43,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058822472] [2020-07-28 17:26:43,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:26:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:26:43,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:26:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:26:43,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:26:43,379 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:26:43,380 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:26:43,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:26:43,403 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:26:43,404 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 17:26:43,404 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 17:26:43,404 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 17:26:43,405 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 17:26:43,405 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 17:26:43,405 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2020-07-28 17:26:43,405 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2020-07-28 17:26:43,406 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-28 17:26:43,406 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:26:43,406 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:26:43,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:26:43 BoogieIcfgContainer [2020-07-28 17:26:43,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:26:43,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:26:43,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:26:43,411 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:26:43,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:26:43" (3/4) ... [2020-07-28 17:26:43,415 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:26:43,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:26:43,420 INFO L168 Benchmark]: Toolchain (without parser) took 1037.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:26:43,421 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:26:43,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.64 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:43,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 949.5 MB in the beginning and 1.2 GB in the end (delta: -202.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:43,424 INFO L168 Benchmark]: Boogie Preprocessor took 26.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:26:43,425 INFO L168 Benchmark]: RCFGBuilder took 315.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:43,425 INFO L168 Benchmark]: TraceAbstraction took 289.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:43,426 INFO L168 Benchmark]: Witness Printer took 5.92 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. [2020-07-28 17:26:43,431 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.64 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 130.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 949.5 MB in the beginning and 1.2 GB in the end (delta: -202.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 315.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 289.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.92 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L13] COND TRUE x >= -1e307 && x <= 1e307 [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.1.25-8bd4bc6 [2020-07-28 17:26:45,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:26:45,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:26:45,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:26:45,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:26:45,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:26:45,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:26:45,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:26:45,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:26:45,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:26:45,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:26:45,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:26:45,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:26:45,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:26:45,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:26:45,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:26:45,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:26:45,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:26:45,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:26:45,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:26:45,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:26:45,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:26:45,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:26:45,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:26:45,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:26:45,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:26:45,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:26:45,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:26:45,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:26:45,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:26:45,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:26:45,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:26:45,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:26:45,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:26:45,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:26:45,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:26:45,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:26:45,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:26:45,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:26:45,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:26:45,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:26:45,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:26:45,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:26:45,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:26:45,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:26:45,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:26:45,390 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:26:45,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:26:45,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:26:45,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:26:45,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:26:45,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:26:45,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:26:45,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:26:45,392 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:26:45,392 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:26:45,393 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:26:45,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:26:45,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:26:45,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:26:45,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:26:45,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:26:45,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:26:45,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:26:45,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:26:45,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:26:45,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:26:45,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:26:45,396 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:26:45,397 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:26:45,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:26:45,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:26:45,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:26:45,398 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 -> dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e [2020-07-28 17:26:45,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:26:45,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:26:45,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:26:45,720 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:26:45,721 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:26:45,721 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double_range.c [2020-07-28 17:26:45,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe9ae0ee6/529dd6cf884449e582af575381e64386/FLAGe40b91454 [2020-07-28 17:26:46,186 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:26:46,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double_range.c [2020-07-28 17:26:46,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe9ae0ee6/529dd6cf884449e582af575381e64386/FLAGe40b91454 [2020-07-28 17:26:46,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe9ae0ee6/529dd6cf884449e582af575381e64386 [2020-07-28 17:26:46,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:26:46,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:26:46,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:26:46,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:26:46,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:26:46,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1bb318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46, skipping insertion in model container [2020-07-28 17:26:46,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:26:46,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:26:46,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:26:46,845 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:26:46,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:26:46,878 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:26:46,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46 WrapperNode [2020-07-28 17:26:46,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:26:46,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:26:46,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:26:46,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:26:46,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:26:46,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:26:46,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:26:46,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:26:46,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:46,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (1/1) ... [2020-07-28 17:26:47,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:26:47,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:26:47,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:26:47,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:26:47,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (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 [2020-07-28 17:26:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:26:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:26:47,242 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:26:47,243 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-28 17:26:47,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:26:47 BoogieIcfgContainer [2020-07-28 17:26:47,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:26:47,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:26:47,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:26:47,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:26:47,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:26:46" (1/3) ... [2020-07-28 17:26:47,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f77aa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:26:47, skipping insertion in model container [2020-07-28 17:26:47,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:26:46" (2/3) ... [2020-07-28 17:26:47,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f77aa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:26:47, skipping insertion in model container [2020-07-28 17:26:47,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:26:47" (3/3) ... [2020-07-28 17:26:47,258 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2020-07-28 17:26:47,277 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:26:47,285 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:26:47,323 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:26:47,365 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:26:47,366 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:26:47,366 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:26:47,366 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:26:47,367 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:26:47,367 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:26:47,367 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:26:47,368 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:26:47,384 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-07-28 17:26:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 17:26:47,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:26:47,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 17:26:47,394 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:26:47,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:26:47,404 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-07-28 17:26:47,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:26:47,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048333186] [2020-07-28 17:26:47,417 INFO L95 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 [2020-07-28 17:26:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:26:47,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-28 17:26:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:26:47,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:26:47,558 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:26:47,621 INFO L280 TraceCheckUtils]: 0: Hoare triple {13#true} currentRoundingMode := ~roundNearestTiesToEven; {13#true} is VALID [2020-07-28 17:26:47,621 INFO L280 TraceCheckUtils]: 1: Hoare triple {13#true} havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; {13#true} is VALID [2020-07-28 17:26:47,628 INFO L280 TraceCheckUtils]: 2: Hoare triple {13#true} assume ~fp.geq~DOUBLE(main_~x~0, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0E307))) && ~fp.leq~DOUBLE(main_~x~0, ~to_fp~DOUBLE(currentRoundingMode, 1.0E307));__VERIFIER_assert_#in~cond := (if ~fp.eq~DOUBLE(main_~x~0, main_~x~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {24#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:26:47,630 INFO L280 TraceCheckUtils]: 3: Hoare triple {24#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == __VERIFIER_assert_~cond; {14#false} is VALID [2020-07-28 17:26:47,630 INFO L280 TraceCheckUtils]: 4: Hoare triple {14#false} assume !false; {14#false} is VALID [2020-07-28 17:26:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:26:47,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:26:47,691 INFO L280 TraceCheckUtils]: 4: Hoare triple {14#false} assume !false; {14#false} is VALID [2020-07-28 17:26:47,692 INFO L280 TraceCheckUtils]: 3: Hoare triple {34#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {14#false} is VALID [2020-07-28 17:26:47,697 INFO L280 TraceCheckUtils]: 2: Hoare triple {13#true} assume ~fp.geq~DOUBLE(main_~x~0, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0E307))) && ~fp.leq~DOUBLE(main_~x~0, ~to_fp~DOUBLE(currentRoundingMode, 1.0E307));__VERIFIER_assert_#in~cond := (if ~fp.eq~DOUBLE(main_~x~0, main_~x~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {34#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 17:26:47,697 INFO L280 TraceCheckUtils]: 1: Hoare triple {13#true} havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; {13#true} is VALID [2020-07-28 17:26:47,698 INFO L280 TraceCheckUtils]: 0: Hoare triple {13#true} currentRoundingMode := ~roundNearestTiesToEven; {13#true} is VALID [2020-07-28 17:26:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:26:47,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048333186] [2020-07-28 17:26:47,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:26:47,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-07-28 17:26:47,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209029238] [2020-07-28 17:26:47,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-07-28 17:26:47,709 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:26:47,713 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 17:26:47,751 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:26:47,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 17:26:47,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:26:47,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 17:26:47,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:26:47,763 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-07-28 17:26:47,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:26:47,838 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-28 17:26:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:26:47,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-07-28 17:26:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:26:47,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:26:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-07-28 17:26:47,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:26:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-07-28 17:26:47,848 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 17 transitions. [2020-07-28 17:26:47,882 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:26:47,889 INFO L225 Difference]: With dead ends: 18 [2020-07-28 17:26:47,890 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:26:47,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:26:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:26:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:26:47,911 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:26:47,911 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:26:47,912 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:26:47,912 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:26:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:26:47,913 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:26:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:26:47,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:26:47,913 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:26:47,914 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:26:47,914 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:26:47,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:26:47,914 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:26:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:26:47,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:26:47,915 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:26:47,915 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:26:47,915 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:26:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:26:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:26:47,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-07-28 17:26:47,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:26:47,918 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:26:47,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 17:26:47,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:26:47,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:26:48,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:26:48,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:26:48,189 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:26:48,190 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:26:48,190 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:26:48,190 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:26:48,191 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-07-28 17:26:48,191 INFO L271 CegarLoopResult]: At program point L16(lines 8 17) the Hoare annotation is: true [2020-07-28 17:26:48,191 INFO L268 CegarLoopResult]: For program point L13(lines 13 15) no Hoare annotation was computed. [2020-07-28 17:26:48,192 INFO L271 CegarLoopResult]: At program point L13-1(lines 13 15) the Hoare annotation is: true [2020-07-28 17:26:48,192 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-07-28 17:26:48,192 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-07-28 17:26:48,197 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:26:48,197 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:26:48,198 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 17:26:48,198 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 17:26:48,198 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 17:26:48,198 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 17:26:48,199 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2020-07-28 17:26:48,199 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2020-07-28 17:26:48,199 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:26:48,199 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:26:48,200 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:26:48,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:26:48 BoogieIcfgContainer [2020-07-28 17:26:48,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:26:48,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:26:48,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:26:48,207 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:26:48,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:26:47" (3/4) ... [2020-07-28 17:26:48,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:26:48,227 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-07-28 17:26:48,228 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 17:26:48,228 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:26:48,269 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:26:48,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:26:48,272 INFO L168 Benchmark]: Toolchain (without parser) took 1729.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -104.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:48,272 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:26:48,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.12 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:48,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:26:48,274 INFO L168 Benchmark]: Boogie Preprocessor took 89.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:48,275 INFO L168 Benchmark]: RCFGBuilder took 243.97 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:48,276 INFO L168 Benchmark]: TraceAbstraction took 958.29 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:48,277 INFO L168 Benchmark]: Witness Printer took 62.67 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:26:48,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.12 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.97 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 958.29 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * Witness Printer took 62.67 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...