./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 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:24:25,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:24:25,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:24:25,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:24:25,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:24:25,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:24:25,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:24:25,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:24:25,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:24:25,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:24:25,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:24:25,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:24:25,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:24:25,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:24:25,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:24:25,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:24:25,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:24:25,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:24:25,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:24:25,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:24:25,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:24:25,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:24:25,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:24:25,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:24:25,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:24:25,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:24:25,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:24:25,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:24:25,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:24:25,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:24:25,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:24:25,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:24:25,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:24:25,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:24:25,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:24:25,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:24:25,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:24:25,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:24:25,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:24:25,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:24:25,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:24:25,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:24:25,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:24:25,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:24:25,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:24:25,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:24:25,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:24:25,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:24:25,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:24:25,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:24:25,196 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:24:25,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:24:25,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:24:25,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:24:25,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:24:25,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:24:25,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:24:25,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:24:25,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:24:25,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:24:25,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:24:25,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:24:25,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:24:25,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:24:25,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:24:25,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:24:25,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:24:25,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:24:25,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:24:25,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:24:25,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:24:25,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:24:25,201 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:24:25,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:24:25,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:24:25,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2022-02-20 16:24:25,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:24:25,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:24:25,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:24:25,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:24:25,448 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:24:25,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double_range.c [2022-02-20 16:24:25,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b7c33eab/07536bdaff044c5aafd79508f6b86a4a/FLAGbccc46e42 [2022-02-20 16:24:25,882 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:24:25,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double_range.c [2022-02-20 16:24:25,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b7c33eab/07536bdaff044c5aafd79508f6b86a4a/FLAGbccc46e42 [2022-02-20 16:24:26,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b7c33eab/07536bdaff044c5aafd79508f6b86a4a [2022-02-20 16:24:26,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:24:26,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:24:26,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:24:26,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:24:26,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:24:26,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2643724e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26, skipping insertion in model container [2022-02-20 16:24:26,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:24:26,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:24:26,441 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_double_range.c[422,435] [2022-02-20 16:24:26,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:24:26,473 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:24:26,481 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_double_range.c[422,435] [2022-02-20 16:24:26,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:24:26,493 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:24:26,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26 WrapperNode [2022-02-20 16:24:26,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:24:26,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:24:26,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:24:26,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:24:26,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,518 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-02-20 16:24:26,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:24:26,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:24:26,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:24:26,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:24:26,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:24:26,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:24:26,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:24:26,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:24:26,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (1/1) ... [2022-02-20 16:24:26,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:24:26,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:24:26,572 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) [2022-02-20 16:24:26,595 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 [2022-02-20 16:24:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:24:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:24:26,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:24:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:24:26,657 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:24:26,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:24:26,771 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:24:26,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:24:26,781 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:24:26,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:24:26 BoogieIcfgContainer [2022-02-20 16:24:26,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:24:26,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:24:26,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:24:26,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:24:26,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:24:26" (1/3) ... [2022-02-20 16:24:26,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430ee9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:24:26, skipping insertion in model container [2022-02-20 16:24:26,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:26" (2/3) ... [2022-02-20 16:24:26,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430ee9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:24:26, skipping insertion in model container [2022-02-20 16:24:26,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:24:26" (3/3) ... [2022-02-20 16:24:26,790 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2022-02-20 16:24:26,794 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:24:26,795 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:24:26,842 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:24:26,849 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 [2022-02-20 16:24:26,849 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:24:26,873 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) [2022-02-20 16:24:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-02-20 16:24:26,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:24:26,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-02-20 16:24:26,878 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:24:26,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:24:26,882 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2022-02-20 16:24:26,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:24:26,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403883790] [2022-02-20 16:24:26,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:24:26,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:24:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:24:26,983 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:24:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:24:27,021 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:24:27,023 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:24:27,025 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:24:27,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:24:27,031 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:24:27,033 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:24:27,055 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:24:27,056 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:24:27,056 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-20 16:24:27,056 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-20 16:24:27,056 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-02-20 16:24:27,056 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-02-20 16:24:27,057 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-02-20 16:24:27,057 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2022-02-20 16:24:27,057 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2022-02-20 16:24:27,057 WARN L170 areAnnotationChecker]: L8-3 has no Hoare annotation [2022-02-20 16:24:27,058 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-02-20 16:24:27,058 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:24:27,058 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. [2022-02-20 16:24:27,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:24:27 BoogieIcfgContainer [2022-02-20 16:24:27,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:24:27,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:24:27,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:24:27,062 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:24:27,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:24:26" (3/4) ... [2022-02-20 16:24:27,065 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:24:27,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:24:27,066 INFO L158 Benchmark]: Toolchain (without parser) took 769.33ms. Allocated memory is still 115.3MB. Free memory was 82.9MB in the beginning and 65.7MB in the end (delta: 17.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-02-20 16:24:27,067 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 54.0MB in the beginning and 54.0MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:24:27,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.25ms. Allocated memory is still 115.3MB. Free memory was 82.6MB in the beginning and 91.5MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:24:27,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.24ms. Allocated memory is still 115.3MB. Free memory was 91.5MB in the beginning and 89.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:24:27,070 INFO L158 Benchmark]: Boogie Preprocessor took 17.50ms. Allocated memory is still 115.3MB. Free memory was 89.9MB in the beginning and 88.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:24:27,074 INFO L158 Benchmark]: RCFGBuilder took 245.85ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 80.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:24:27,074 INFO L158 Benchmark]: TraceAbstraction took 274.56ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 66.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:24:27,075 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 115.3MB. Free memory was 66.3MB in the beginning and 65.7MB in the end (delta: 650.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:24:27,081 INFO L339 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 0.16ms. Allocated memory is still 83.9MB. Free memory was 54.0MB in the beginning and 54.0MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.25ms. Allocated memory is still 115.3MB. Free memory was 82.6MB in the beginning and 91.5MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.24ms. Allocated memory is still 115.3MB. Free memory was 91.5MB in the beginning and 89.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.50ms. Allocated memory is still 115.3MB. Free memory was 89.9MB in the beginning and 88.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 245.85ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 80.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 274.56ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 66.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 115.3MB. Free memory was 66.3MB in the beginning and 65.7MB in the end (delta: 650.6kB). 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 someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] COND TRUE x >= -1e307 && x <= 1e307 [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: 0.2s, 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 [2022-02-20 16:24:27,125 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 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 -ea -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_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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:24:29,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:24:29,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:24:29,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:24:29,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:24:29,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:24:29,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:24:29,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:24:29,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:24:29,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:24:29,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:24:29,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:24:29,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:24:29,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:24:29,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:24:29,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:24:29,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:24:29,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:24:29,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:24:29,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:24:29,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:24:29,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:24:29,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:24:29,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:24:29,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:24:29,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:24:29,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:24:29,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:24:29,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:24:29,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:24:29,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:24:29,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:24:29,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:24:29,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:24:29,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:24:29,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:24:29,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:24:29,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:24:29,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:24:29,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:24:29,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:24:29,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:24:29,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:24:29,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:24:29,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:24:29,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:24:29,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:24:29,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:24:29,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:24:29,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:24:29,089 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:24:29,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:24:29,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:24:29,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:24:29,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:24:29,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:24:29,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:24:29,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:24:29,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:24:29,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:24:29,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:24:29,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:24:29,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:24:29,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:24:29,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:24:29,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:24:29,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:24:29,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:24:29,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:24:29,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:24:29,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:24:29,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:24:29,101 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:24:29,101 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:24:29,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:24:29,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:24:29,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:24:29,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:24:29,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2022-02-20 16:24:29,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:24:29,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:24:29,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:24:29,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:24:29,435 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:24:29,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double_range.c [2022-02-20 16:24:29,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559b9f310/43dbab0b624e4a159fb998784ef58dca/FLAG6070fbf68 [2022-02-20 16:24:29,874 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:24:29,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double_range.c [2022-02-20 16:24:29,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559b9f310/43dbab0b624e4a159fb998784ef58dca/FLAG6070fbf68 [2022-02-20 16:24:29,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559b9f310/43dbab0b624e4a159fb998784ef58dca [2022-02-20 16:24:29,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:24:29,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:24:29,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:24:29,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:24:29,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:24:29,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:24:29" (1/1) ... [2022-02-20 16:24:29,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59538265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:29, skipping insertion in model container [2022-02-20 16:24:29,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:24:29" (1/1) ... [2022-02-20 16:24:29,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:24:29,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:24:30,044 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_double_range.c[422,435] [2022-02-20 16:24:30,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:24:30,077 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:24:30,095 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_double_range.c[422,435] [2022-02-20 16:24:30,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:24:30,117 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:24:30,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30 WrapperNode [2022-02-20 16:24:30,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:24:30,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:24:30,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:24:30,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:24:30,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,150 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2022-02-20 16:24:30,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:24:30,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:24:30,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:24:30,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:24:30,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:24:30,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:24:30,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:24:30,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:24:30,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (1/1) ... [2022-02-20 16:24:30,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:24:30,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:24:30,228 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) [2022-02-20 16:24:30,252 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 [2022-02-20 16:24:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:24:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:24:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:24:30,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:24:30,334 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:24:30,335 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:24:30,431 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:24:30,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:24:30,437 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:24:30,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:24:30 BoogieIcfgContainer [2022-02-20 16:24:30,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:24:30,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:24:30,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:24:30,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:24:30,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:24:29" (1/3) ... [2022-02-20 16:24:30,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a61d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:24:30, skipping insertion in model container [2022-02-20 16:24:30,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:24:30" (2/3) ... [2022-02-20 16:24:30,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a61d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:24:30, skipping insertion in model container [2022-02-20 16:24:30,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:24:30" (3/3) ... [2022-02-20 16:24:30,444 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2022-02-20 16:24:30,448 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:24:30,449 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:24:30,484 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:24:30,490 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 [2022-02-20 16:24:30,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:24:30,506 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) [2022-02-20 16:24:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-02-20 16:24:30,509 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:24:30,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-02-20 16:24:30,510 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:24:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:24:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2022-02-20 16:24:30,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:24:30,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828936968] [2022-02-20 16:24:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:24:30,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:24:30,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:24:30,528 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) [2022-02-20 16:24:30,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:24:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:24:30,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-20 16:24:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:24:30,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:24:30,799 INFO L290 TraceCheckUtils]: 0: Hoare triple {14#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(19bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {14#true} is VALID [2022-02-20 16:24:30,800 INFO L290 TraceCheckUtils]: 1: Hoare triple {14#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; {14#true} is VALID [2022-02-20 16:24:30,804 INFO L290 TraceCheckUtils]: 2: Hoare triple {14#true} assume ~fp.geq~DOUBLE(main_~x~0#1, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0E307))) && ~fp.leq~DOUBLE(main_~x~0#1, ~to_fp~DOUBLE(currentRoundingMode, 1.0E307));assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~fp.eq~DOUBLE(main_~x~0#1, main_~x~0#1) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; {25#(= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))} is VALID [2022-02-20 16:24:30,805 INFO L290 TraceCheckUtils]: 3: Hoare triple {25#(= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))} assume 0bv32 == __VERIFIER_assert_~cond#1; {15#false} is VALID [2022-02-20 16:24:30,805 INFO L290 TraceCheckUtils]: 4: Hoare triple {15#false} assume !false; {15#false} is VALID [2022-02-20 16:24:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:24:30,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:24:30,807 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:24:30,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828936968] [2022-02-20 16:24:30,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828936968] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:24:30,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:24:30,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:24:30,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800980292] [2022-02-20 16:24:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:24:30,814 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 [2022-02-20 16:24:30,815 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:24:30,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 16:24:30,827 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:24:30,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 16:24:30,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:24:30,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 16:24:30,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 16:24:30,847 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) [2022-02-20 16:24:30,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:24:30,889 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2022-02-20 16:24:30,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 16:24:30,890 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 [2022-02-20 16:24:30,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:24:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:24:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2022-02-20 16:24:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:24:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2022-02-20 16:24:30,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 19 transitions. [2022-02-20 16:24:30,920 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:24:30,925 INFO L225 Difference]: With dead ends: 20 [2022-02-20 16:24:30,925 INFO L226 Difference]: Without dead ends: 0 [2022-02-20 16:24:30,927 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 [2022-02-20 16:24:30,930 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 [2022-02-20 16:24:30,931 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] [2022-02-20 16:24:30,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-20 16:24:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-20 16:24:30,952 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:24:30,953 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-02-20 16:24:30,954 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-02-20 16:24:30,954 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-02-20 16:24:30,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:24:30,955 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:24:30,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:24:30,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:24:30,956 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:24:30,956 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-02-20 16:24:30,957 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-02-20 16:24:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:24:30,957 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:24:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:24:30,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:24:30,958 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:24:30,959 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:24:30,959 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:24:30,959 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) [2022-02-20 16:24:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-20 16:24:30,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-02-20 16:24:30,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:24:30,962 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-20 16:24:30,962 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) [2022-02-20 16:24:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:24:30,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:24:30,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:24:30,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:24:31,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:24:31,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-20 16:24:31,192 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-20 16:24:31,193 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-02-20 16:24:31,193 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-02-20 16:24:31,193 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-20 16:24:31,194 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-02-20 16:24:31,195 INFO L861 garLoopResultBuilder]: At program point L18(lines 10 19) the Hoare annotation is: true [2022-02-20 16:24:31,196 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-02-20 16:24:31,196 INFO L858 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2022-02-20 16:24:31,196 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-02-20 16:24:31,201 INFO L858 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-02-20 16:24:31,202 INFO L854 garLoopResultBuilder]: At program point L8-3(line 8) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2022-02-20 16:24:31,205 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:24:31,206 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:24:31,214 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:24:31,215 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:24:31,215 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-20 16:24:31,215 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-20 16:24:31,215 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-02-20 16:24:31,215 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-02-20 16:24:31,215 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-02-20 16:24:31,216 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2022-02-20 16:24:31,216 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2022-02-20 16:24:31,216 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-02-20 16:24:31,216 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:24:31,216 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:24:31,216 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. [2022-02-20 16:24:31,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:24:31 BoogieIcfgContainer [2022-02-20 16:24:31,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:24:31,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:24:31,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:24:31,226 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:24:31,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:24:30" (3/4) ... [2022-02-20 16:24:31,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-02-20 16:24:31,238 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-02-20 16:24:31,239 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-02-20 16:24:31,239 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-02-20 16:24:31,239 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-02-20 16:24:31,269 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:24:31,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:24:31,271 INFO L158 Benchmark]: Toolchain (without parser) took 1367.62ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 42.0MB in the end (delta: -10.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2022-02-20 16:24:31,271 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:24:31,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.02ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.6MB in the beginning and 50.3MB in the end (delta: -18.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-02-20 16:24:31,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.38ms. Allocated memory is still 67.1MB. Free memory was 50.3MB in the beginning and 48.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:24:31,274 INFO L158 Benchmark]: Boogie Preprocessor took 40.34ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 47.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:24:31,274 INFO L158 Benchmark]: RCFGBuilder took 245.04ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 39.3MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-20 16:24:31,274 INFO L158 Benchmark]: TraceAbstraction took 782.18ms. Allocated memory is still 67.1MB. Free memory was 38.9MB in the beginning and 44.1MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:24:31,274 INFO L158 Benchmark]: Witness Printer took 43.73ms. Allocated memory is still 67.1MB. Free memory was 44.1MB in the beginning and 42.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:24:31,278 INFO L339 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 0.10ms. Allocated memory is still 54.5MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.02ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.6MB in the beginning and 50.3MB in the end (delta: -18.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.38ms. Allocated memory is still 67.1MB. Free memory was 50.3MB in the beginning and 48.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.34ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 47.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 245.04ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 39.3MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 782.18ms. Allocated memory is still 67.1MB. Free memory was 38.9MB in the beginning and 44.1MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.73ms. Allocated memory is still 67.1MB. Free memory was 44.1MB in the beginning and 42.0MB in the end (delta: 2.1MB). 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! [2022-02-20 16:24:31,324 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