./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_float_ptr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_float_ptr.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 78f30e89596faa37861e47ad729c34c253971261a6589638e8089a38a98c63e4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:47:12,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:47:12,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:47:12,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:47:12,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:47:12,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:47:12,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:47:12,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:47:12,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:47:12,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:47:12,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:47:12,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:47:12,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:47:12,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:47:12,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:47:12,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:47:12,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:47:12,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:47:12,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:47:12,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:47:12,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:47:12,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:47:12,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:47:12,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:47:12,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:47:12,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:47:12,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:47:12,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:47:12,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:47:12,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:47:12,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:47:12,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:47:12,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:47:12,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:47:12,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:47:12,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:47:12,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:47:12,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:47:12,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:47:12,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:47:12,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:47:12,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:47:12,504 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:47:12,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:47:12,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:47:12,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:47:12,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:47:12,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:47:12,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:47:12,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:47:12,506 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:47:12,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:47:12,507 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:47:12,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:47:12,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:47:12,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:47:12,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:47:12,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:47:12,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:47:12,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:47:12,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:47:12,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:47:12,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:47:12,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:47:12,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:47:12,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:47:12,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:12,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:47:12,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:47:12,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:47:12,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:47:12,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:47:12,511 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:47:12,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:47:12,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:47:12,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:47:12,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f30e89596faa37861e47ad729c34c253971261a6589638e8089a38a98c63e4 [2021-12-21 11:47:12,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:47:12,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:47:12,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:47:12,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:47:12,770 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:47:12,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-21 11:47:12,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e926822/3a2e05205faf419dafd3705b45ac5a9f/FLAGe6f7c2ac6 [2021-12-21 11:47:13,183 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:47:13,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-21 11:47:13,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e926822/3a2e05205faf419dafd3705b45ac5a9f/FLAGe6f7c2ac6 [2021-12-21 11:47:13,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e926822/3a2e05205faf419dafd3705b45ac5a9f [2021-12-21 11:47:13,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:47:13,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:47:13,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:13,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:47:13,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:47:13,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12eb27e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13, skipping insertion in model container [2021-12-21 11:47:13,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:47:13,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:47:13,778 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_float_ptr.c[362,375] [2021-12-21 11:47:13,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:13,801 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:47:13,811 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_float_ptr.c[362,375] [2021-12-21 11:47:13,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:13,832 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:47:13,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13 WrapperNode [2021-12-21 11:47:13,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:13,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:13,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:47:13,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:47:13,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,873 INFO L137 Inliner]: procedures = 17, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2021-12-21 11:47:13,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:13,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:47:13,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:47:13,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:47:13,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:47:13,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:47:13,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:47:13,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:47:13,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (1/1) ... [2021-12-21 11:47:13,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:13,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:47:14,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 11:47:14,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 11:47:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:47:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:47:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:47:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 11:47:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 11:47:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-21 11:47:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:47:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:47:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 11:47:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:47:14,132 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:47:14,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:47:14,252 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:47:14,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:47:14,261 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:47:14,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:14 BoogieIcfgContainer [2021-12-21 11:47:14,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:47:14,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:47:14,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:47:14,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:47:14,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:47:13" (1/3) ... [2021-12-21 11:47:14,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc323f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:14, skipping insertion in model container [2021-12-21 11:47:14,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:13" (2/3) ... [2021-12-21 11:47:14,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc323f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:14, skipping insertion in model container [2021-12-21 11:47:14,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:14" (3/3) ... [2021-12-21 11:47:14,286 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-12-21 11:47:14,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:47:14,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:47:14,318 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:47:14,337 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 11:47:14,341 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:47:14,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:14,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 11:47:14,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:47:14,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:47:14,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:47:14,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:47:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2021-12-21 11:47:14,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:47:14,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688076368] [2021-12-21 11:47:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:47:14,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:47:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:14,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:47:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:14,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:47:14,566 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:47:14,567 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:47:14,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:47:14,573 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-21 11:47:14,576 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:47:14,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:47:14 BoogieIcfgContainer [2021-12-21 11:47:14,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:47:14,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:47:14,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:47:14,598 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:47:14,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:14" (3/4) ... [2021-12-21 11:47:14,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:47:14,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:47:14,602 INFO L158 Benchmark]: Toolchain (without parser) took 994.76ms. Allocated memory is still 121.6MB. Free memory was 97.3MB in the beginning and 66.0MB in the end (delta: 31.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2021-12-21 11:47:14,603 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:14,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.17ms. Allocated memory is still 121.6MB. Free memory was 97.0MB in the beginning and 96.3MB in the end (delta: 701.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:47:14,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.59ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:14,604 INFO L158 Benchmark]: Boogie Preprocessor took 41.49ms. Allocated memory is still 121.6MB. Free memory was 94.5MB in the beginning and 93.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:14,605 INFO L158 Benchmark]: RCFGBuilder took 345.80ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 82.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 11:47:14,606 INFO L158 Benchmark]: TraceAbstraction took 334.19ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 66.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 11:47:14,606 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 121.6MB. Free memory was 66.3MB in the beginning and 66.0MB in the end (delta: 374.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:14,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.17ms. Allocated memory is still 121.6MB. Free memory was 97.0MB in the beginning and 96.3MB in the end (delta: 701.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.59ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.49ms. Allocated memory is still 121.6MB. Free memory was 94.5MB in the beginning and 93.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.80ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 82.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 334.19ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 66.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 121.6MB. Free memory was 66.3MB in the beginning and 66.0MB in the end (delta: 374.2kB). 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: 5]: 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 25, overapproximation of bitwiseAnd at line 13. Possible FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L38] CALL cast(a) [L10] double dmax; [L11] float f; [L13] EXPR \read(d) VAL [\old(d)=3758096386, \read(d)=3758096385, d={5:0}, dmax={7:0}, f={6:0}] [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) VAL [\old(d)=3758096386, \read(d)=3758096386, \read(dmax)=3758096387, d={5:0}, dmax={7:0}, f={6:0}] [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) VAL [\old(d)=3758096386, \read(d)=3758096386, \read(dmax)=3758096387, d={5:0}, dmax={7:0}, f={6:0}] [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] EXPR d >= -3.41e38 && d <= 3.41e38 [L25] EXPR \read(d) [L25] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=3758096386, \read(d)=3758096386, \read(d)=3758096386, d={5:0}, dmax={7:0}, f={6:0}] [L25] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) [L5] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-21 11:47:14,647 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 -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_float_ptr.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 78f30e89596faa37861e47ad729c34c253971261a6589638e8089a38a98c63e4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:47:16,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:47:16,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:47:16,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:47:16,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:47:16,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:47:16,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:47:16,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:47:16,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:47:16,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:47:16,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:47:16,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:47:16,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:47:16,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:47:16,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:47:16,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:47:16,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:47:16,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:47:16,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:47:16,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:47:16,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:47:16,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:47:16,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:47:16,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:47:16,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:47:16,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:47:16,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:47:16,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:47:16,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:47:16,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:47:16,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:47:16,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:47:16,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:47:16,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:47:16,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:47:16,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:47:16,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:47:16,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:47:16,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:47:16,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:47:16,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:47:16,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:47:16,291 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:47:16,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:47:16,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:47:16,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:47:16,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:47:16,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:47:16,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:47:16,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:47:16,294 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:47:16,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:47:16,294 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:47:16,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:47:16,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:47:16,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:47:16,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:47:16,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:47:16,295 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:47:16,295 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:47:16,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:47:16,295 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:47:16,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:47:16,296 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:47:16,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:47:16,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:47:16,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:47:16,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:47:16,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:16,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:47:16,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:47:16,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:47:16,297 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:47:16,297 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:47:16,297 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:47:16,297 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:47:16,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:47:16,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:47:16,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:47:16,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f30e89596faa37861e47ad729c34c253971261a6589638e8089a38a98c63e4 [2021-12-21 11:47:16,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:47:16,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:47:16,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:47:16,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:47:16,611 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:47:16,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-21 11:47:16,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aadaee0c/307d531b3baa460cbe1437970eb63288/FLAG4f2d8f3c8 [2021-12-21 11:47:16,980 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:47:16,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-21 11:47:16,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aadaee0c/307d531b3baa460cbe1437970eb63288/FLAG4f2d8f3c8 [2021-12-21 11:47:17,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aadaee0c/307d531b3baa460cbe1437970eb63288 [2021-12-21 11:47:17,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:47:17,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:47:17,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:17,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:47:17,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:47:17,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6e1f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17, skipping insertion in model container [2021-12-21 11:47:17,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:47:17,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:47:17,502 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_float_ptr.c[362,375] [2021-12-21 11:47:17,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:17,520 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:47:17,528 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_float_ptr.c[362,375] [2021-12-21 11:47:17,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:17,578 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:47:17,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17 WrapperNode [2021-12-21 11:47:17,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:17,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:17,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:47:17,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:47:17,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,618 INFO L137 Inliner]: procedures = 22, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-12-21 11:47:17,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:17,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:47:17,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:47:17,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:47:17,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:47:17,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:47:17,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:47:17,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:47:17,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:17,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:47:17,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 11:47:17,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 11:47:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:47:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-21 11:47:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-21 11:47:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:47:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:47:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-21 11:47:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 11:47:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:47:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:47:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-21 11:47:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 11:47:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:47:17,812 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:47:17,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:47:18,049 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:47:18,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:47:18,053 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:47:18,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:18 BoogieIcfgContainer [2021-12-21 11:47:18,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:47:18,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:47:18,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:47:18,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:47:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:47:17" (1/3) ... [2021-12-21 11:47:18,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439b88b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:18, skipping insertion in model container [2021-12-21 11:47:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (2/3) ... [2021-12-21 11:47:18,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439b88b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:18, skipping insertion in model container [2021-12-21 11:47:18,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:18" (3/3) ... [2021-12-21 11:47:18,060 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-12-21 11:47:18,063 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:47:18,079 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:47:18,111 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:47:18,131 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 11:47:18,131 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:47:18,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:18,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 11:47:18,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:47:18,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:47:18,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:47:18,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:47:18,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2021-12-21 11:47:18,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:47:18,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656623498] [2021-12-21 11:47:18,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:47:18,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:47:18,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:47:18,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 11:47:18,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 11:47:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:47:18,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-21 11:47:18,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:47:18,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 11:47:18,334 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-12-21 11:47:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:47:18,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:47:18,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:47:18,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656623498] [2021-12-21 11:47:18,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656623498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:47:18,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:47:18,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:47:18,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949462472] [2021-12-21 11:47:18,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:47:18,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 11:47:18,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:47:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 11:47:18,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:47:18,599 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:18,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:47:18,633 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2021-12-21 11:47:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 11:47:18,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2021-12-21 11:47:18,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:47:18,643 INFO L225 Difference]: With dead ends: 30 [2021-12-21 11:47:18,648 INFO L226 Difference]: Without dead ends: 10 [2021-12-21 11:47:18,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:47:18,652 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:47:18,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2021-12-21 11:47:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-21 11:47:18,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-21 11:47:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-12-21 11:47:18,671 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2021-12-21 11:47:18,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:47:18,671 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-12-21 11:47:18,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-12-21 11:47:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 11:47:18,672 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:47:18,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:47:18,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-21 11:47:18,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:47:18,883 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:47:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:47:18,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1271627341, now seen corresponding path program 1 times [2021-12-21 11:47:18,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:47:18,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112104664] [2021-12-21 11:47:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:47:18,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:47:18,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:47:18,886 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) [2021-12-21 11:47:18,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 11:47:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:18,974 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:47:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:19,034 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-21 11:47:19,034 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:47:19,035 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:47:19,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-21 11:47:19,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:47:19,240 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:47:19,242 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:47:19,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:47:19 BoogieIcfgContainer [2021-12-21 11:47:19,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:47:19,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:47:19,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:47:19,268 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:47:19,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:18" (3/4) ... [2021-12-21 11:47:19,270 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 11:47:19,305 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 11:47:19,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:47:19,306 INFO L158 Benchmark]: Toolchain (without parser) took 1906.96ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 54.0MB in the beginning and 61.7MB in the end (delta: -7.7MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-12-21 11:47:19,306 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:19,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.00ms. Allocated memory is still 71.3MB. Free memory was 53.9MB in the beginning and 54.6MB in the end (delta: -700.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 11:47:19,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.92ms. Allocated memory is still 71.3MB. Free memory was 54.6MB in the beginning and 52.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:19,307 INFO L158 Benchmark]: Boogie Preprocessor took 43.59ms. Allocated memory is still 71.3MB. Free memory was 52.7MB in the beginning and 51.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:19,307 INFO L158 Benchmark]: RCFGBuilder took 390.31ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 39.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 11:47:19,308 INFO L158 Benchmark]: TraceAbstraction took 1211.93ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 38.9MB in the beginning and 63.7MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:19,308 INFO L158 Benchmark]: Witness Printer took 37.25ms. Allocated memory is still 92.3MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:19,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.00ms. Allocated memory is still 71.3MB. Free memory was 53.9MB in the beginning and 54.6MB in the end (delta: -700.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.92ms. Allocated memory is still 71.3MB. Free memory was 54.6MB in the beginning and 52.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.59ms. Allocated memory is still 71.3MB. Free memory was 52.7MB in the beginning and 51.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 390.31ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 39.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1211.93ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 38.9MB in the beginning and 63.7MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.25ms. Allocated memory is still 92.3MB. Free memory was 63.7MB in the beginning and 61.7MB 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: 5]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L38] CALL cast(a) [L10] double dmax; [L11] float f; [L13] EXPR \read(d) VAL [\old(d)=NaN, \read(d)=0, d={7:0}, dmax={5:0}, f={15:0}] [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) VAL [\old(d)=NaN, \read(d)=NaN, \read(dmax)=-26815623046150350000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, d={7:0}, dmax={5:0}, f={15:0}] [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) VAL [\old(d)=NaN, \read(d)=NaN, \read(dmax)=-26815623046150350000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, d={7:0}, dmax={5:0}, f={15:0}] [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=NaN, \read(d)=NaN, d={7:0}, d >= -3.41e38 && d <= 3.41e38=0, dmax={5:0}, f={15:0}] [L25] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) [L5] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 3 QuantifiedInterpolants, 324 SizeOfPredicates, 3 NumberOfNonLiveVariables, 65 ConjunctsInSsa, 15 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! [2021-12-21 11:47:19,343 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