./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_union_loose.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/cast_union_loose.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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:21:10,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:21:10,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:21:10,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:21:10,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:21:10,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:21:10,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:21:10,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:21:10,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:21:10,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:21:10,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:21:10,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:21:10,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:21:10,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:21:10,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:21:10,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:21:10,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:21:10,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:21:10,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:21:10,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:21:10,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:21:10,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:21:10,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:21:10,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:21:10,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:21:10,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:21:10,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:21:10,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:21:10,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:21:10,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:21:10,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:21:10,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:21:10,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:21:10,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:21:10,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:21:10,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:21:10,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:21:10,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:21:10,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:21:10,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:21:10,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:21:10,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:21:10,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:21:10,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:21:10,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:21:10,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:21:10,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:21:10,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:21:10,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:21:10,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:21:10,398 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:21:10,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:21:10,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:21:10,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:21:10,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:21:10,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:21:10,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:21:10,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:21:10,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:21:10,400 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:21:10,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:21:10,400 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:21:10,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:21:10,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:21:10,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:21:10,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:21:10,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:10,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:21:10,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:21:10,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:21:10,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:21:10,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:21:10,402 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:21:10,402 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:21:10,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:21:10,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2022-02-20 16:21:10,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:21:10,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:21:10,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:21:10,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:21:10,603 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:21:10,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2022-02-20 16:21:10,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/413904129/0c30d157bb074bff9ce260b5ba3e407a/FLAG7d88c483f [2022-02-20 16:21:11,013 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:21:11,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2022-02-20 16:21:11,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/413904129/0c30d157bb074bff9ce260b5ba3e407a/FLAG7d88c483f [2022-02-20 16:21:11,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/413904129/0c30d157bb074bff9ce260b5ba3e407a [2022-02-20 16:21:11,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:21:11,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:21:11,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:11,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:21:11,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:21:11,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191257b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11, skipping insertion in model container [2022-02-20 16:21:11,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:21:11,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:21:11,196 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/cast_union_loose.c[582,595] [2022-02-20 16:21:11,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:11,230 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:21:11,239 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/cast_union_loose.c[582,595] [2022-02-20 16:21:11,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:11,269 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:21:11,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11 WrapperNode [2022-02-20 16:21:11,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:11,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:11,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:21:11,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:21:11,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,312 INFO L137 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-02-20 16:21:11,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:11,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:21:11,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:21:11,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:21:11,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:21:11,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:21:11,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:21:11,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:21:11,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (1/1) ... [2022-02-20 16:21:11,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:11,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:21:11,381 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 16:21:11,399 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 16:21:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:21:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:21:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:21:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:21:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:21:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:21:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:21:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:21:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:21:11,483 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:21:11,485 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:21:11,696 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:21:11,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:21:11,700 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:21:11,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:11 BoogieIcfgContainer [2022-02-20 16:21:11,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:21:11,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:21:11,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:21:11,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:21:11,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:21:11" (1/3) ... [2022-02-20 16:21:11,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74add5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:11, skipping insertion in model container [2022-02-20 16:21:11,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:11" (2/3) ... [2022-02-20 16:21:11,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74add5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:11, skipping insertion in model container [2022-02-20 16:21:11,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:11" (3/3) ... [2022-02-20 16:21:11,714 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2022-02-20 16:21:11,718 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:21:11,718 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:21:11,755 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:21:11,760 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 16:21:11,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:21:11,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 16:21:11,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 16:21:11,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:21:11,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:21:11,777 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:21:11,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:21:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2022-02-20 16:21:11,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:21:11,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773990967] [2022-02-20 16:21:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:21:11,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:21:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:21:11,905 INFO L290 TraceCheckUtils]: 0: Hoare triple {15#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);call #Ultimate.allocInit(12, 3); {15#true} is VALID [2022-02-20 16:21:11,905 INFO L290 TraceCheckUtils]: 1: Hoare triple {15#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1, main_~a~0#1, main_~r~0#1;havoc main_~a~0#1;havoc main_~r~0#1;assume -2147483648 <= main_#t~nondet8#1 && main_#t~nondet8#1 <= 2147483647;main_~a~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if main_~a~0#1 >= -10000 && main_~a~0#1 <= 10000 then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {15#true} is VALID [2022-02-20 16:21:11,906 INFO L290 TraceCheckUtils]: 2: Hoare triple {15#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {16#false} is VALID [2022-02-20 16:21:11,907 INFO L290 TraceCheckUtils]: 3: Hoare triple {16#false} assume { :end_inline_assume_abort_if_not } true;assume { :begin_inline_cast } true;cast_#in~i#1 := main_~a~0#1;havoc cast_#res#1;havoc cast_#t~mem4#1, cast_#t~mem5#1, cast_#t~mem6#1, cast_#t~mem7#1, cast_~i#1, cast_~#x~0#1.base, cast_~#x~0#1.offset, cast_~#y~0#1.base, cast_~#y~0#1.offset;cast_~i#1 := cast_#in~i#1;call cast_~#x~0#1.base, cast_~#x~0#1.offset := #Ultimate.allocOnStack(8);call cast_~#y~0#1.base, cast_~#y~0#1.offset := #Ultimate.allocOnStack(8);call write~int(1127219200, cast_~#x~0#1.base, cast_~#x~0#1.offset, 4);call cast_#t~mem4#1 := read~int(cast_~#x~0#1.base, cast_~#x~0#1.offset, 4);call write~int(cast_#t~mem4#1, cast_~#y~0#1.base, cast_~#y~0#1.offset, 4);havoc cast_#t~mem4#1;call write~int(-2147483648, cast_~#x~0#1.base, 4 + cast_~#x~0#1.offset, 4);call cast_#t~mem5#1 := read~int(cast_~#x~0#1.base, 4 + cast_~#x~0#1.offset, 4);call write~int((if (1 == cast_~i#1 || 0 == cast_~i#1) && (1 == cast_#t~mem5#1 || 0 == cast_#t~mem5#1) then (if cast_~i#1 == cast_#t~mem5#1 then 0 else 1) else (if 0 == cast_~i#1 then cast_#t~mem5#1 else (if 0 == cast_#t~mem5#1 then cast_~i#1 else ~bitwiseXOr(cast_~i#1, cast_#t~mem5#1)))), cast_~#y~0#1.base, 4 + cast_~#y~0#1.offset, 4);havoc cast_#t~mem5#1;call cast_#t~mem6#1 := read~real(cast_~#y~0#1.base, cast_~#y~0#1.offset, 8);call cast_#t~mem7#1 := read~real(cast_~#x~0#1.base, cast_~#x~0#1.offset, 8);cast_#res#1 := ~someBinaryArithmeticDOUBLEoperation(cast_#t~mem6#1, cast_#t~mem7#1);havoc cast_#t~mem6#1;havoc cast_#t~mem7#1;call ULTIMATE.dealloc(cast_~#x~0#1.base, cast_~#x~0#1.offset);havoc cast_~#x~0#1.base, cast_~#x~0#1.offset;call ULTIMATE.dealloc(cast_~#y~0#1.base, cast_~#y~0#1.offset);havoc cast_~#y~0#1.base, cast_~#y~0#1.offset; {16#false} is VALID [2022-02-20 16:21:11,908 INFO L290 TraceCheckUtils]: 4: Hoare triple {16#false} main_#t~ret9#1 := cast_#res#1;assume { :end_inline_cast } true;main_~r~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~someBinaryDOUBLEComparisonOperation(main_~r~0#1, ~someUnaryDOUBLEoperation(10000.0)) && ~someBinaryDOUBLEComparisonOperation(main_~r~0#1, 10000.0) then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; {16#false} is VALID [2022-02-20 16:21:11,908 INFO L290 TraceCheckUtils]: 5: Hoare triple {16#false} assume 0 == __VERIFIER_assert_~cond#1; {16#false} is VALID [2022-02-20 16:21:11,908 INFO L290 TraceCheckUtils]: 6: Hoare triple {16#false} assume !false; {16#false} is VALID [2022-02-20 16:21:11,909 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 16:21:11,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:21:11,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773990967] [2022-02-20 16:21:11,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773990967] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:21:11,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:21:11,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:21:11,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518103804] [2022-02-20 16:21:11,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:21:11,917 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 16:21:11,918 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:21:11,920 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:11,936 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:21:11,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:21:11,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:21:11,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:21:11,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:21:11,957 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:11,983 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-02-20 16:21:11,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:21:11,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 16:21:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:21:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2022-02-20 16:21:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2022-02-20 16:21:11,992 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 22 transitions. [2022-02-20 16:21:12,022 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:21:12,027 INFO L225 Difference]: With dead ends: 21 [2022-02-20 16:21:12,028 INFO L226 Difference]: Without dead ends: 8 [2022-02-20 16:21:12,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:21:12,034 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:21:12,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:21:12,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-02-20 16:21:12,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-02-20 16:21:12,052 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:21:12,053 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:12,053 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:12,054 INFO L87 Difference]: Start difference. First operand 8 states. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:12,056 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-02-20 16:21:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-02-20 16:21:12,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:21:12,057 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:21:12,057 INFO L74 IsIncluded]: Start isIncluded. First operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 8 states. [2022-02-20 16:21:12,057 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 8 states. [2022-02-20 16:21:12,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:12,059 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-02-20 16:21:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-02-20 16:21:12,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:21:12,060 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:21:12,060 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:21:12,060 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:21:12,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-02-20 16:21:12,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2022-02-20 16:21:12,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:21:12,067 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-02-20 16:21:12,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-02-20 16:21:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 16:21:12,068 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:21:12,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:21:12,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:21:12,076 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:21:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:21:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2022-02-20 16:21:12,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:21:12,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843824814] [2022-02-20 16:21:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:21:12,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:21:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:21:12,208 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:21:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:21:12,271 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:21:12,271 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:21:12,272 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:21:12,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:21:12,275 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:21:12,277 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:21:12,297 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2022-02-20 16:21:12,298 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2022-02-20 16:21:12,299 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2022-02-20 16:21:12,299 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:21:12,299 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 16:21:12,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:21:12 BoogieIcfgContainer [2022-02-20 16:21:12,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:21:12,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:21:12,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:21:12,300 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:21:12,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:11" (3/4) ... [2022-02-20 16:21:12,302 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:21:12,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:21:12,304 INFO L158 Benchmark]: Toolchain (without parser) took 1264.73ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 62.2MB in the beginning and 94.5MB in the end (delta: -32.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:12,304 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:12,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.87ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 62.0MB in the beginning and 102.9MB in the end (delta: -40.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:21:12,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.61ms. Allocated memory is still 127.9MB. Free memory was 102.9MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:12,309 INFO L158 Benchmark]: Boogie Preprocessor took 32.59ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:12,309 INFO L158 Benchmark]: RCFGBuilder took 354.56ms. Allocated memory is still 127.9MB. Free memory was 99.8MB in the beginning and 87.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:21:12,309 INFO L158 Benchmark]: TraceAbstraction took 597.58ms. Allocated memory is still 127.9MB. Free memory was 87.3MB in the beginning and 94.5MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:12,310 INFO L158 Benchmark]: Witness Printer took 2.76ms. Allocated memory is still 127.9MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:12,314 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 0.14ms. Allocated memory is still 94.4MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.87ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 62.0MB in the beginning and 102.9MB in the end (delta: -40.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.61ms. Allocated memory is still 127.9MB. Free memory was 102.9MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.59ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 354.56ms. Allocated memory is still 127.9MB. Free memory was 99.8MB in the beginning and 87.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 597.58ms. Allocated memory is still 127.9MB. Free memory was 87.3MB in the beginning and 94.5MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.76ms. Allocated memory is still 127.9MB. Free memory is still 94.5MB. 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: 13]: 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 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27, overapproximation of bitwiseXOr at line 26. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\old(i)=1, i=1] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, 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, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 16:21:12,350 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/cast_union_loose.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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:21:13,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:21:13,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:21:13,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:21:13,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:21:13,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:21:13,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:21:13,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:21:13,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:21:13,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:21:13,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:21:13,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:21:13,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:21:14,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:21:14,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:21:14,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:21:14,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:21:14,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:21:14,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:21:14,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:21:14,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:21:14,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:21:14,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:21:14,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:21:14,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:21:14,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:21:14,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:21:14,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:21:14,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:21:14,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:21:14,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:21:14,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:21:14,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:21:14,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:21:14,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:21:14,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:21:14,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:21:14,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:21:14,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:21:14,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:21:14,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:21:14,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:21:14,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:21:14,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:21:14,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:21:14,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:21:14,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:21:14,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:21:14,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:21:14,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:21:14,065 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:21:14,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:21:14,065 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:21:14,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:21:14,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:21:14,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:21:14,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:21:14,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:21:14,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:21:14,066 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:21:14,066 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:21:14,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:21:14,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:21:14,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:21:14,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:21:14,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:21:14,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:21:14,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:21:14,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:14,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:21:14,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:21:14,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:21:14,068 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:21:14,068 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:21:14,069 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:21:14,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:21:14,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:21:14,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:21:14,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2022-02-20 16:21:14,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:21:14,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:21:14,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:21:14,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:21:14,365 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:21:14,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2022-02-20 16:21:14,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c8d5c77c/92b13af075dc450b8417e0ae003a9863/FLAGcf6e97986 [2022-02-20 16:21:14,765 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:21:14,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2022-02-20 16:21:14,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c8d5c77c/92b13af075dc450b8417e0ae003a9863/FLAGcf6e97986 [2022-02-20 16:21:14,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c8d5c77c/92b13af075dc450b8417e0ae003a9863 [2022-02-20 16:21:14,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:21:14,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:21:14,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:14,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:21:14,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:21:14,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:14" (1/1) ... [2022-02-20 16:21:14,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4ede90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:14, skipping insertion in model container [2022-02-20 16:21:14,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:14" (1/1) ... [2022-02-20 16:21:14,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:21:14,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:21:14,941 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/cast_union_loose.c[582,595] [2022-02-20 16:21:14,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:14,998 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:21:15,018 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/cast_union_loose.c[582,595] [2022-02-20 16:21:15,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:15,054 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:21:15,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15 WrapperNode [2022-02-20 16:21:15,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:15,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:15,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:21:15,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:21:15,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,111 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-02-20 16:21:15,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:15,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:21:15,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:21:15,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:21:15,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:21:15,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:21:15,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:21:15,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:21:15,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (1/1) ... [2022-02-20 16:21:15,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:15,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:21:15,181 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 16:21:15,183 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 16:21:15,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:21:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-02-20 16:21:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:21:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:21:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:21:15,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:21:15,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:21:15,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:21:15,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:21:15,254 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:21:15,256 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:21:15,446 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:21:15,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:21:15,450 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:21:15,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:15 BoogieIcfgContainer [2022-02-20 16:21:15,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:21:15,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:21:15,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:21:15,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:21:15,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:21:14" (1/3) ... [2022-02-20 16:21:15,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622ca239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:15, skipping insertion in model container [2022-02-20 16:21:15,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:15" (2/3) ... [2022-02-20 16:21:15,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622ca239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:15, skipping insertion in model container [2022-02-20 16:21:15,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:15" (3/3) ... [2022-02-20 16:21:15,474 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2022-02-20 16:21:15,478 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:21:15,478 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:21:15,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:21:15,546 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 16:21:15,547 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:21:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 16:21:15,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 16:21:15,561 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:21:15,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:21:15,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:21:15,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:21:15,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2022-02-20 16:21:15,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:21:15,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077725930] [2022-02-20 16:21:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:21:15,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:21:15,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:21:15,577 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 16:21:15,578 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 16:21:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:21:15,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:21:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:21:15,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:21:15,768 INFO L290 TraceCheckUtils]: 0: Hoare triple {15#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); {15#true} is VALID [2022-02-20 16:21:15,768 INFO L290 TraceCheckUtils]: 1: Hoare triple {15#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1, main_~a~0#1, main_~r~0#1;havoc main_~a~0#1;havoc main_~r~0#1;main_~a~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~bvsge32(main_~a~0#1, 4294957296bv32) && ~bvsle32(main_~a~0#1, 10000bv32) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {15#true} is VALID [2022-02-20 16:21:15,769 INFO L290 TraceCheckUtils]: 2: Hoare triple {15#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {16#false} is VALID [2022-02-20 16:21:15,769 INFO L290 TraceCheckUtils]: 3: Hoare triple {16#false} assume { :end_inline_assume_abort_if_not } true;assume { :begin_inline_cast } true;cast_#in~i#1 := main_~a~0#1;havoc cast_#res#1;havoc cast_#t~mem4#1, cast_#t~mem5#1, cast_#t~mem6#1, cast_#t~mem7#1, cast_~i#1, cast_~#x~0#1.base, cast_~#x~0#1.offset, cast_~#y~0#1.base, cast_~#y~0#1.offset;cast_~i#1 := cast_#in~i#1;call cast_~#x~0#1.base, cast_~#x~0#1.offset := #Ultimate.allocOnStack(8bv32);call cast_~#y~0#1.base, cast_~#y~0#1.offset := #Ultimate.allocOnStack(8bv32);call write~intINTTYPE4(1127219200bv32, cast_~#x~0#1.base, cast_~#x~0#1.offset, 4bv32);call cast_#t~mem4#1 := read~intINTTYPE4(cast_~#x~0#1.base, cast_~#x~0#1.offset, 4bv32);call write~intINTTYPE4(cast_#t~mem4#1, cast_~#y~0#1.base, cast_~#y~0#1.offset, 4bv32);havoc cast_#t~mem4#1;call write~intINTTYPE4(2147483648bv32, cast_~#x~0#1.base, ~bvadd32(4bv32, cast_~#x~0#1.offset), 4bv32);call cast_#t~mem5#1 := read~intINTTYPE4(cast_~#x~0#1.base, ~bvadd32(4bv32, cast_~#x~0#1.offset), 4bv32);call write~intINTTYPE4(~bvxor32(cast_~i#1, cast_#t~mem5#1), cast_~#y~0#1.base, ~bvadd32(4bv32, cast_~#y~0#1.offset), 4bv32);havoc cast_#t~mem5#1;call cast_#t~mem6#1 := read~intFLOATTYPE8(cast_~#y~0#1.base, cast_~#y~0#1.offset, 8bv32);call cast_#t~mem7#1 := read~intFLOATTYPE8(cast_~#x~0#1.base, cast_~#x~0#1.offset, 8bv32);cast_#res#1 := ~fp.sub~DOUBLE(currentRoundingMode, cast_#t~mem6#1, cast_#t~mem7#1);havoc cast_#t~mem6#1;havoc cast_#t~mem7#1;call ULTIMATE.dealloc(cast_~#x~0#1.base, cast_~#x~0#1.offset);havoc cast_~#x~0#1.base, cast_~#x~0#1.offset;call ULTIMATE.dealloc(cast_~#y~0#1.base, cast_~#y~0#1.offset);havoc cast_~#y~0#1.base, cast_~#y~0#1.offset; {16#false} is VALID [2022-02-20 16:21:15,770 INFO L290 TraceCheckUtils]: 4: Hoare triple {16#false} main_#t~ret9#1 := cast_#res#1;assume { :end_inline_cast } true;main_~r~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~fp.geq~DOUBLE(main_~r~0#1, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 10000.0))) && ~fp.leq~DOUBLE(main_~r~0#1, ~to_fp~DOUBLE(currentRoundingMode, 10000.0)) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; {16#false} is VALID [2022-02-20 16:21:15,771 INFO L290 TraceCheckUtils]: 5: Hoare triple {16#false} assume 0bv32 == __VERIFIER_assert_~cond#1; {16#false} is VALID [2022-02-20 16:21:15,771 INFO L290 TraceCheckUtils]: 6: Hoare triple {16#false} assume !false; {16#false} is VALID [2022-02-20 16:21:15,772 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 16:21:15,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:21:15,773 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:21:15,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077725930] [2022-02-20 16:21:15,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077725930] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:21:15,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:21:15,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:21:15,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802437336] [2022-02-20 16:21:15,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:21:15,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 16:21:15,781 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:21:15,783 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:15,823 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:21:15,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:21:15,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:21:15,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:21:15,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:21:15,838 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:15,912 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-02-20 16:21:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:21:15,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-02-20 16:21:15,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:21:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:15,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2022-02-20 16:21:15,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2022-02-20 16:21:15,917 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 22 transitions. [2022-02-20 16:21:15,990 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:21:15,995 INFO L225 Difference]: With dead ends: 21 [2022-02-20 16:21:15,995 INFO L226 Difference]: Without dead ends: 8 [2022-02-20 16:21:15,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:21:15,999 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:21:15,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:21:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-02-20 16:21:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-02-20 16:21:16,014 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:21:16,015 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:16,015 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:16,015 INFO L87 Difference]: Start difference. First operand 8 states. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:16,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:16,016 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-02-20 16:21:16,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-02-20 16:21:16,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:21:16,016 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:21:16,016 INFO L74 IsIncluded]: Start isIncluded. First operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 8 states. [2022-02-20 16:21:16,017 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 8 states. [2022-02-20 16:21:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:16,017 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-02-20 16:21:16,017 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-02-20 16:21:16,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:21:16,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:21:16,018 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:21:16,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:21:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 16:21:16,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-02-20 16:21:16,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2022-02-20 16:21:16,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:21:16,019 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-02-20 16:21:16,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 16:21:16,020 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-02-20 16:21:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 16:21:16,020 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:21:16,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:21:16,032 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 16:21:16,220 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 16:21:16,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:21:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:21:16,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2022-02-20 16:21:16,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:21:16,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121332930] [2022-02-20 16:21:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:21:16,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:21:16,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:21:16,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:21:16,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:21:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:21:16,365 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:21:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:21:16,489 INFO L138 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-02-20 16:21:16,490 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:21:16,491 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:21:16,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-02-20 16:21:16,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:21:16,695 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:21:16,697 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:21:16,720 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:21:16,720 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:21:16,720 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-02-20 16:21:16,720 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-02-20 16:21:16,720 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-02-20 16:21:16,720 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-20 16:21:16,720 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-02-20 16:21:16,721 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-02-20 16:21:16,721 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2022-02-20 16:21:16,721 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2022-02-20 16:21:16,721 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2022-02-20 16:21:16,721 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2022-02-20 16:21:16,722 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:21:16,722 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 16:21:16,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:21:16 BoogieIcfgContainer [2022-02-20 16:21:16,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:21:16,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:21:16,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:21:16,725 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:21:16,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:15" (3/4) ... [2022-02-20 16:21:16,726 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-20 16:21:16,763 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:21:16,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:21:16,764 INFO L158 Benchmark]: Toolchain (without parser) took 1976.13ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.3MB in the beginning and 29.7MB in the end (delta: 2.6MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-02-20 16:21:16,764 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 35.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:16,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.34ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 36.0MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:21:16,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.35ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 34.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:16,765 INFO L158 Benchmark]: Boogie Preprocessor took 43.24ms. Allocated memory is still 54.5MB. Free memory was 34.2MB in the beginning and 32.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:16,766 INFO L158 Benchmark]: RCFGBuilder took 294.62ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.6MB in the beginning and 47.4MB in the end (delta: -14.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:16,766 INFO L158 Benchmark]: TraceAbstraction took 1269.96ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 31.8MB in the end (delta: 15.0MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-02-20 16:21:16,767 INFO L158 Benchmark]: Witness Printer took 38.81ms. Allocated memory is still 67.1MB. Free memory was 31.8MB in the beginning and 29.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:16,769 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 54.5MB. Free memory is still 35.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.34ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 36.0MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.35ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 34.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.24ms. Allocated memory is still 54.5MB. Free memory was 34.2MB in the beginning and 32.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.62ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.6MB in the beginning and 47.4MB in the end (delta: -14.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1269.96ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 31.8MB in the end (delta: 15.0MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 38.81ms. Allocated memory is still 67.1MB. Free memory was 31.8MB in the beginning and 29.7MB 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 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\old(i)=4294957296, \result=NaN, i=4294957296] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 1 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 RESULT: Ultimate proved your program to be incorrect! [2022-02-20 16:21:16,810 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE