./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_float_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_float_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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 10:05:19,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 10:05:19,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 10:05:19,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 10:05:19,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 10:05:19,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 10:05:19,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 10:05:19,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 10:05:19,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 10:05:19,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 10:05:19,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 10:05:19,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 10:05:19,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 10:05:19,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 10:05:19,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 10:05:19,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 10:05:19,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 10:05:19,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 10:05:19,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 10:05:19,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 10:05:19,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 10:05:19,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 10:05:19,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 10:05:19,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 10:05:19,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 10:05:19,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 10:05:19,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 10:05:19,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 10:05:19,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 10:05:19,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 10:05:19,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 10:05:19,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 10:05:19,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 10:05:19,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 10:05:19,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 10:05:19,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 10:05:19,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 10:05:19,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 10:05:19,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 10:05:19,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 10:05:19,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 10:05:19,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 10:05:19,188 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 10:05:19,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 10:05:19,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 10:05:19,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 10:05:19,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 10:05:19,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 10:05:19,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 10:05:19,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 10:05:19,190 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 10:05:19,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 10:05:19,191 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 10:05:19,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 10:05:19,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 10:05:19,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 10:05:19,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 10:05:19,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 10:05:19,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 10:05:19,192 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 10:05:19,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 10:05:19,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 10:05:19,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 10:05:19,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 10:05:19,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 10:05:19,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 10:05:19,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:05:19,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 10:05:19,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 10:05:19,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 10:05:19,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 10:05:19,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 10:05:19,194 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 10:05:19,194 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 10:05:19,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 10:05:19,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 10:05:19,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 [2021-12-22 10:05:19,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 10:05:19,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 10:05:19,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 10:05:19,415 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 10:05:19,416 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 10:05:19,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float_range.c [2021-12-22 10:05:19,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1385a577/dc2429837a6c428581b9513e40e344a8/FLAG071f6d08f [2021-12-22 10:05:19,770 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 10:05:19,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c [2021-12-22 10:05:19,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1385a577/dc2429837a6c428581b9513e40e344a8/FLAG071f6d08f [2021-12-22 10:05:20,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1385a577/dc2429837a6c428581b9513e40e344a8 [2021-12-22 10:05:20,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 10:05:20,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 10:05:20,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 10:05:20,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 10:05:20,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 10:05:20,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c4083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20, skipping insertion in model container [2021-12-22 10:05:20,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 10:05:20,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 10:05:20,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2021-12-22 10:05:20,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:05:20,361 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 10:05:20,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2021-12-22 10:05:20,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:05:20,379 INFO L208 MainTranslator]: Completed translation [2021-12-22 10:05:20,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20 WrapperNode [2021-12-22 10:05:20,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 10:05:20,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 10:05:20,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 10:05:20,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 10:05:20,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,401 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2021-12-22 10:05:20,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 10:05:20,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 10:05:20,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 10:05:20,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 10:05:20,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 10:05:20,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 10:05:20,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 10:05:20,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 10:05:20,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (1/1) ... [2021-12-22 10:05:20,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:05:20,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 10:05:20,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 10:05:20,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 10:05:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 10:05:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 10:05:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 10:05:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 10:05:20,512 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 10:05:20,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 10:05:20,561 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 10:05:20,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 10:05:20,565 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 10:05:20,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:05:20 BoogieIcfgContainer [2021-12-22 10:05:20,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 10:05:20,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 10:05:20,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 10:05:20,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 10:05:20,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:05:20" (1/3) ... [2021-12-22 10:05:20,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560ec966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:05:20, skipping insertion in model container [2021-12-22 10:05:20,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:20" (2/3) ... [2021-12-22 10:05:20,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560ec966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:05:20, skipping insertion in model container [2021-12-22 10:05:20,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:05:20" (3/3) ... [2021-12-22 10:05:20,571 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2021-12-22 10:05:20,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 10:05:20,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 10:05:20,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 10:05:20,605 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 10:05:20,605 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 10:05:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:05:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-22 10:05:20,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 10:05:20,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-22 10:05:20,617 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 10:05:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 10:05:20,620 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-12-22 10:05:20,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 10:05:20,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721738568] [2021-12-22 10:05:20,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 10:05:20,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 10:05:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 10:05:20,680 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 10:05:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 10:05:20,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 10:05:20,703 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 10:05:20,704 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 10:05:20,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 10:05:20,710 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-22 10:05:20,712 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 10:05:20,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:05:20 BoogieIcfgContainer [2021-12-22 10:05:20,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 10:05:20,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 10:05:20,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 10:05:20,731 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 10:05:20,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:05:20" (3/4) ... [2021-12-22 10:05:20,734 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 10:05:20,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 10:05:20,735 INFO L158 Benchmark]: Toolchain (without parser) took 508.79ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 52.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-12-22 10:05:20,736 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 57.7MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:05:20,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.39ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 76.3MB in the end (delta: -4.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-12-22 10:05:20,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.25ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 75.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 10:05:20,738 INFO L158 Benchmark]: Boogie Preprocessor took 23.02ms. Allocated memory is still 100.7MB. Free memory was 75.0MB in the beginning and 73.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:05:20,741 INFO L158 Benchmark]: RCFGBuilder took 139.74ms. Allocated memory is still 100.7MB. Free memory was 73.9MB in the beginning and 65.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 10:05:20,742 INFO L158 Benchmark]: TraceAbstraction took 161.25ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 53.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-22 10:05:20,743 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 100.7MB. Free memory was 53.1MB in the beginning and 52.7MB in the end (delta: 332.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:05:20,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 57.7MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.39ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 76.3MB in the end (delta: -4.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.25ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 75.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.02ms. Allocated memory is still 100.7MB. Free memory was 75.0MB in the beginning and 73.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 139.74ms. Allocated memory is still 100.7MB. Free memory was 73.9MB in the beginning and 65.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 161.25ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 53.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 100.7MB. Free memory was 53.1MB in the beginning and 52.7MB in the end (delta: 332.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] COND TRUE x >= -1e10 && x <= 1e10 [L16] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 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, 5 NumberOfCodeBlocks, 5 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 [2021-12-22 10:05:20,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_float_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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 10:05:22,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 10:05:22,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 10:05:22,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 10:05:22,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 10:05:22,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 10:05:22,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 10:05:22,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 10:05:22,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 10:05:22,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 10:05:22,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 10:05:22,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 10:05:22,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 10:05:22,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 10:05:22,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 10:05:22,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 10:05:22,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 10:05:22,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 10:05:22,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 10:05:22,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 10:05:22,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 10:05:22,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 10:05:22,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 10:05:22,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 10:05:22,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 10:05:22,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 10:05:22,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 10:05:22,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 10:05:22,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 10:05:22,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 10:05:22,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 10:05:22,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 10:05:22,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 10:05:22,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 10:05:22,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 10:05:22,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 10:05:22,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 10:05:22,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 10:05:22,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 10:05:22,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 10:05:22,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 10:05:22,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-22 10:05:22,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 10:05:22,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 10:05:22,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 10:05:22,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 10:05:22,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 10:05:22,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 10:05:22,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 10:05:22,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 10:05:22,491 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 10:05:22,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 10:05:22,492 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 10:05:22,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 10:05:22,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 10:05:22,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 10:05:22,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 10:05:22,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 10:05:22,493 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 10:05:22,493 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-22 10:05:22,493 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-22 10:05:22,494 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 10:05:22,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 10:05:22,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 10:05:22,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 10:05:22,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 10:05:22,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 10:05:22,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 10:05:22,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:05:22,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 10:05:22,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 10:05:22,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 10:05:22,495 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-22 10:05:22,495 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-22 10:05:22,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 10:05:22,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 10:05:22,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 10:05:22,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 10:05:22,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-22 10:05:22,497 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 [2021-12-22 10:05:22,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 10:05:22,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 10:05:22,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 10:05:22,734 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 10:05:22,734 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 10:05:22,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float_range.c [2021-12-22 10:05:22,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2784154a9/a15df6a327b348768449f042ae4d12a2/FLAGc9bc0798c [2021-12-22 10:05:23,080 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 10:05:23,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c [2021-12-22 10:05:23,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2784154a9/a15df6a327b348768449f042ae4d12a2/FLAGc9bc0798c [2021-12-22 10:05:23,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2784154a9/a15df6a327b348768449f042ae4d12a2 [2021-12-22 10:05:23,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 10:05:23,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 10:05:23,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 10:05:23,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 10:05:23,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 10:05:23,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2490556e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23, skipping insertion in model container [2021-12-22 10:05:23,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 10:05:23,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 10:05:23,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2021-12-22 10:05:23,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:05:23,642 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 10:05:23,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2021-12-22 10:05:23,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:05:23,679 INFO L208 MainTranslator]: Completed translation [2021-12-22 10:05:23,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23 WrapperNode [2021-12-22 10:05:23,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 10:05:23,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 10:05:23,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 10:05:23,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 10:05:23,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,700 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2021-12-22 10:05:23,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 10:05:23,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 10:05:23,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 10:05:23,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 10:05:23,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 10:05:23,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 10:05:23,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 10:05:23,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 10:05:23,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (1/1) ... [2021-12-22 10:05:23,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:05:23,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 10:05:23,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 10:05:23,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 10:05:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 10:05:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-22 10:05:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 10:05:23,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 10:05:23,820 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 10:05:23,821 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 10:05:23,997 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 10:05:24,001 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 10:05:24,001 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 10:05:24,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:05:24 BoogieIcfgContainer [2021-12-22 10:05:24,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 10:05:24,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 10:05:24,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 10:05:24,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 10:05:24,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:05:23" (1/3) ... [2021-12-22 10:05:24,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f814fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:05:24, skipping insertion in model container [2021-12-22 10:05:24,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:05:23" (2/3) ... [2021-12-22 10:05:24,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f814fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:05:24, skipping insertion in model container [2021-12-22 10:05:24,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:05:24" (3/3) ... [2021-12-22 10:05:24,013 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2021-12-22 10:05:24,017 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 10:05:24,017 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 10:05:24,058 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 10:05:24,077 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 10:05:24,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 10:05:24,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:05:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-22 10:05:24,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 10:05:24,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-22 10:05:24,108 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 10:05:24,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 10:05:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-12-22 10:05:24,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 10:05:24,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399904759] [2021-12-22 10:05:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 10:05:24,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 10:05:24,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 10:05:24,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-22 10:05:24,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-22 10:05:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 10:05:24,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 10:05:24,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 10:05:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 10:05:24,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 10:05:24,428 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-22 10:05:24,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399904759] [2021-12-22 10:05:24,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399904759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 10:05:24,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 10:05:24,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 10:05:24,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514085124] [2021-12-22 10:05:24,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 10:05:24,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 10:05:24,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-22 10:05:24,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 10:05:24,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 10:05:24,473 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:05:24,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 10:05:24,485 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2021-12-22 10:05:24,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 10:05:24,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-22 10:05:24,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 10:05:24,492 INFO L225 Difference]: With dead ends: 20 [2021-12-22 10:05:24,492 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 10:05:24,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 10:05:24,500 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 10:05:24,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 10:05:24,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 10:05:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 10:05:24,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:05:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 10:05:24,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-12-22 10:05:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 10:05:24,517 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 10:05:24,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:05:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 10:05:24,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 10:05:24,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 10:05:24,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-22 10:05:24,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-22 10:05:24,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 10:05:24,743 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 10:05:24,744 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 10:05:24,744 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 10:05:24,744 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 10:05:24,744 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-12-22 10:05:24,744 INFO L861 garLoopResultBuilder]: At program point L18(lines 10 19) the Hoare annotation is: true [2021-12-22 10:05:24,745 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-12-22 10:05:24,745 INFO L858 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2021-12-22 10:05:24,745 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-12-22 10:05:24,746 INFO L858 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-12-22 10:05:24,746 INFO L854 garLoopResultBuilder]: At program point L8-3(line 8) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2021-12-22 10:05:24,749 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-22 10:05:24,750 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 10:05:24,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:05:24 BoogieIcfgContainer [2021-12-22 10:05:24,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 10:05:24,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 10:05:24,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 10:05:24,772 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 10:05:24,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:05:24" (3/4) ... [2021-12-22 10:05:24,781 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 10:05:24,789 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-22 10:05:24,791 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-22 10:05:24,791 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 10:05:24,792 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 10:05:24,819 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 10:05:24,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 10:05:24,820 INFO L158 Benchmark]: Toolchain (without parser) took 1303.82ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 23.5MB in the beginning and 32.7MB in the end (delta: -9.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-22 10:05:24,821 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 29.9MB in the beginning and 29.8MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:05:24,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.17ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 23.3MB in the beginning and 43.1MB in the end (delta: -19.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-12-22 10:05:24,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.06ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:05:24,823 INFO L158 Benchmark]: Boogie Preprocessor took 13.29ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 40.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:05:24,823 INFO L158 Benchmark]: RCFGBuilder took 287.49ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 32.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 10:05:24,824 INFO L158 Benchmark]: TraceAbstraction took 757.48ms. Allocated memory is still 60.8MB. Free memory was 32.2MB in the beginning and 35.0MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:05:24,826 INFO L158 Benchmark]: Witness Printer took 48.91ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 32.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 10:05:24,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 29.9MB in the beginning and 29.8MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.17ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 23.3MB in the beginning and 43.1MB in the end (delta: -19.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.06ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.29ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 40.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.49ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 32.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 757.48ms. Allocated memory is still 60.8MB. Free memory was 32.2MB in the beginning and 35.0MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.91ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 32.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 5 NumberOfFragments, 4 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, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 3 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 4 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: cond == 1bv32 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-22 10:05:24,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE