./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:11:46,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:11:46,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:11:46,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:11:46,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:11:46,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:11:46,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:11:46,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:11:46,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:11:46,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:11:46,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:11:46,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:11:46,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:11:46,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:11:46,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:11:46,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:11:46,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:11:46,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:11:46,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:11:46,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:11:46,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:11:46,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:11:46,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:11:46,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:11:46,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:11:46,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:11:46,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:11:46,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:11:46,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:11:46,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:11:46,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:11:46,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:11:46,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:11:46,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:11:46,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:11:46,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:11:46,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:11:46,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:11:46,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:11:46,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:11:46,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:11:46,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 13:11:46,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:11:46,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:11:46,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:11:46,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:11:46,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:11:46,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:11:46,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:11:46,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:11:46,845 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:11:46,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:11:46,846 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:11:46,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 13:11:46,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:11:46,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:11:46,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:11:46,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:11:46,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:11:46,847 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:11:46,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:11:46,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:11:46,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:11:46,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:11:46,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:11:46,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:11:46,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:11:46,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:11:46,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:11:46,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:11:46,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 13:11:46,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 13:11:46,850 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:11:46,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:11:46,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:11:46,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:11:46,851 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f30e89596faa37861e47ad729c34c253971261a6589638e8089a38a98c63e4 [2021-12-14 13:11:47,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:11:47,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:11:47,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:11:47,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:11:47,106 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:11:47,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-14 13:11:47,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e90daf7/367ee013b10a4947b34218ab4e87a10a/FLAGa3217f8d8 [2021-12-14 13:11:47,534 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:11:47,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-14 13:11:47,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e90daf7/367ee013b10a4947b34218ab4e87a10a/FLAGa3217f8d8 [2021-12-14 13:11:47,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e90daf7/367ee013b10a4947b34218ab4e87a10a [2021-12-14 13:11:47,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:11:47,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:11:47,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:11:47,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:11:47,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:11:47,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:11:47" (1/1) ... [2021-12-14 13:11:47,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b77630f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:47, skipping insertion in model container [2021-12-14 13:11:47,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:11:47" (1/1) ... [2021-12-14 13:11:47,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:11:48,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:11:48,108 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] [2021-12-14 13:11:48,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:11:48,127 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:11:48,138 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] [2021-12-14 13:11:48,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:11:48,159 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:11:48,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48 WrapperNode [2021-12-14 13:11:48,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:11:48,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:11:48,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:11:48,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:11:48,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,192 INFO L137 Inliner]: procedures = 17, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2021-12-14 13:11:48,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:11:48,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:11:48,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:11:48,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:11:48,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:11:48,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:11:48,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:11:48,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:11:48,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (1/1) ... [2021-12-14 13:11:48,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:11:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:11:48,259 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) [2021-12-14 13:11:48,265 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 [2021-12-14 13:11:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:11:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 13:11:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 13:11:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-14 13:11:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 13:11:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-14 13:11:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:11:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:11:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 13:11:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 13:11:48,360 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:11:48,362 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:11:48,513 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 13:11:48,517 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 13:11:48,531 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 13:11:48,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:11:48 BoogieIcfgContainer [2021-12-14 13:11:48,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 13:11:48,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 13:11:48,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 13:11:48,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 13:11:48,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:11:47" (1/3) ... [2021-12-14 13:11:48,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6dfc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:11:48, skipping insertion in model container [2021-12-14 13:11:48,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:48" (2/3) ... [2021-12-14 13:11:48,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6dfc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:11:48, skipping insertion in model container [2021-12-14 13:11:48,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:11:48" (3/3) ... [2021-12-14 13:11:48,539 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-12-14 13:11:48,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 13:11:48,543 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 13:11:48,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 13:11:48,610 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 [2021-12-14 13:11:48,623 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 13:11:48,632 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) [2021-12-14 13:11:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-14 13:11:48,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:11:48,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:11:48,652 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:11:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:11:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2021-12-14 13:11:48,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:11:48,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601423359] [2021-12-14 13:11:48,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:11:48,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:11:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 13:11:48,770 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 13:11:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 13:11:48,803 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 13:11:48,804 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-14 13:11:48,805 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 13:11:48,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 13:11:48,810 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-14 13:11:48,812 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 13:11:48,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:11:48 BoogieIcfgContainer [2021-12-14 13:11:48,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 13:11:48,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 13:11:48,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 13:11:48,832 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 13:11:48,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:11:48" (3/4) ... [2021-12-14 13:11:48,834 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 13:11:48,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 13:11:48,835 INFO L158 Benchmark]: Toolchain (without parser) took 851.76ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 62.3MB in the beginning and 103.7MB in the end (delta: -41.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:11:48,836 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 49.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:11:48,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.61ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 68.8MB in the end (delta: -6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 13:11:48,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.32ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:11:48,837 INFO L158 Benchmark]: Boogie Preprocessor took 39.77ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 65.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:11:48,837 INFO L158 Benchmark]: RCFGBuilder took 300.17ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 55.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 13:11:48,838 INFO L158 Benchmark]: TraceAbstraction took 296.49ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 54.8MB in the beginning and 103.9MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:11:48,838 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 132.1MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:11:48,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 49.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.61ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 68.8MB in the end (delta: -6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.32ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.77ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 65.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.17ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 55.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 296.49ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 54.8MB in the beginning and 103.9MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 132.1MB. Free memory is still 103.9MB. 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.0s 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 [2021-12-14 13:11:48,867 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:11:50,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:11:50,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:11:50,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:11:50,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:11:50,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:11:50,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:11:50,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:11:50,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:11:50,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:11:50,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:11:50,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:11:50,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:11:50,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:11:50,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:11:50,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:11:50,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:11:50,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:11:50,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:11:50,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:11:50,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:11:50,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:11:50,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:11:50,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:11:50,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:11:50,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:11:50,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:11:50,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:11:50,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:11:50,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:11:50,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:11:50,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:11:50,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:11:50,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:11:50,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:11:50,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:11:50,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:11:50,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:11:50,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:11:50,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:11:50,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:11:50,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-14 13:11:50,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:11:50,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:11:50,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:11:50,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:11:50,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:11:50,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:11:50,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:11:50,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:11:50,656 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:11:50,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:11:50,657 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:11:50,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:11:50,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:11:50,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:11:50,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:11:50,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:11:50,658 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-14 13:11:50,658 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-14 13:11:50,658 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-14 13:11:50,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:11:50,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:11:50,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:11:50,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:11:50,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:11:50,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:11:50,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:11:50,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:11:50,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:11:50,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:11:50,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:11:50,660 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-14 13:11:50,661 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-14 13:11:50,661 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:11:50,661 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:11:50,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:11:50,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:11:50,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-14 13:11:50,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78f30e89596faa37861e47ad729c34c253971261a6589638e8089a38a98c63e4 [2021-12-14 13:11:50,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:11:50,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:11:50,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:11:50,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:11:50,951 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:11:50,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-14 13:11:51,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9309992ea/c6598604d5974f51b74ecc445a9173d5/FLAG229a7f0d1 [2021-12-14 13:11:51,366 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:11:51,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-12-14 13:11:51,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9309992ea/c6598604d5974f51b74ecc445a9173d5/FLAG229a7f0d1 [2021-12-14 13:11:51,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9309992ea/c6598604d5974f51b74ecc445a9173d5 [2021-12-14 13:11:51,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:11:51,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:11:51,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:11:51,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:11:51,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:11:51,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:11:51" (1/1) ... [2021-12-14 13:11:51,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e4baba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:51, skipping insertion in model container [2021-12-14 13:11:51,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:11:51" (1/1) ... [2021-12-14 13:11:51,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:11:51,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:11:51,952 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] [2021-12-14 13:11:51,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:11:51,975 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:11:51,986 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] [2021-12-14 13:11:51,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:11:52,023 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:11:52,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52 WrapperNode [2021-12-14 13:11:52,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:11:52,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:11:52,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:11:52,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:11:52,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,070 INFO L137 Inliner]: procedures = 22, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-12-14 13:11:52,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:11:52,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:11:52,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:11:52,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:11:52,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:11:52,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:11:52,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:11:52,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:11:52,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (1/1) ... [2021-12-14 13:11:52,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:11:52,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:11:52,142 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) [2021-12-14 13:11:52,165 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 [2021-12-14 13:11:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:11:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-14 13:11:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-14 13:11:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-14 13:11:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 13:11:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-14 13:11:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-14 13:11:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:11:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:11:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-14 13:11:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-14 13:11:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 13:11:52,255 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:11:52,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:11:52,463 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 13:11:52,467 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 13:11:52,467 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 13:11:52,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:11:52 BoogieIcfgContainer [2021-12-14 13:11:52,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 13:11:52,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 13:11:52,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 13:11:52,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 13:11:52,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:11:51" (1/3) ... [2021-12-14 13:11:52,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e25d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:11:52, skipping insertion in model container [2021-12-14 13:11:52,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:11:52" (2/3) ... [2021-12-14 13:11:52,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e25d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:11:52, skipping insertion in model container [2021-12-14 13:11:52,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:11:52" (3/3) ... [2021-12-14 13:11:52,500 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-12-14 13:11:52,504 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 13:11:52,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 13:11:52,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 13:11:52,562 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 [2021-12-14 13:11:52,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 13:11:52,576 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) [2021-12-14 13:11:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-14 13:11:52,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:11:52,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:11:52,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:11:52,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:11:52,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2021-12-14 13:11:52,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-14 13:11:52,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477340619] [2021-12-14 13:11:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:11:52,602 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-14 13:11:52,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-14 13:11:52,604 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) [2021-12-14 13:11:52,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-14 13:11:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:11:52,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-14 13:11:52,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:11:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 13:11:52,833 INFO L388 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 [2021-12-14 13:11:53,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:11:53,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 13:11:53,204 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-14 13:11:53,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477340619] [2021-12-14 13:11:53,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477340619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:11:53,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:11:53,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 13:11:53,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303826728] [2021-12-14 13:11:53,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:11:53,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 13:11:53,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-14 13:11:53,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 13:11:53,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 13:11:53,228 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) [2021-12-14 13:11:53,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:11:53,311 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2021-12-14 13:11:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 13:11:53,319 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 [2021-12-14 13:11:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:11:53,323 INFO L225 Difference]: With dead ends: 30 [2021-12-14 13:11:53,324 INFO L226 Difference]: Without dead ends: 10 [2021-12-14 13:11:53,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 13:11:53,328 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 13:11:53,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2021-12-14 13:11:53,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-14 13:11:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-14 13:11:53,352 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) [2021-12-14 13:11:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-12-14 13:11:53,353 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2021-12-14 13:11:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:11:53,354 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-12-14 13:11:53,354 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) [2021-12-14 13:11:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-12-14 13:11:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-14 13:11:53,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:11:53,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:11:53,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-14 13:11:53,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-14 13:11:53,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:11:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:11:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1271627341, now seen corresponding path program 1 times [2021-12-14 13:11:53,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-14 13:11:53,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026762768] [2021-12-14 13:11:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:11:53,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-14 13:11:53,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-14 13:11:53,567 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) [2021-12-14 13:11:53,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-14 13:11:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 13:11:53,666 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 13:11:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 13:11:53,750 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-14 13:11:53,750 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-14 13:11:53,751 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 13:11:53,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-14 13:11:53,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-14 13:11:53,956 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-14 13:11:53,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 13:11:53,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:11:53 BoogieIcfgContainer [2021-12-14 13:11:53,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 13:11:53,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 13:11:53,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 13:11:53,987 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 13:11:53,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:11:52" (3/4) ... [2021-12-14 13:11:53,992 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-14 13:11:54,025 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 13:11:54,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 13:11:54,026 INFO L158 Benchmark]: Toolchain (without parser) took 2208.73ms. Allocated memory was 50.3MB in the beginning and 77.6MB in the end (delta: 27.3MB). Free memory was 26.3MB in the beginning and 48.7MB in the end (delta: -22.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-12-14 13:11:54,026 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:11:54,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.63ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.2MB in the beginning and 37.0MB in the end (delta: -10.9MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-12-14 13:11:54,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.25ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 43.6MB in the end (delta: -6.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 13:11:54,027 INFO L158 Benchmark]: Boogie Preprocessor took 46.38ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:11:54,027 INFO L158 Benchmark]: RCFGBuilder took 350.24ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 30.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 13:11:54,028 INFO L158 Benchmark]: TraceAbstraction took 1490.65ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 43.5MB in the beginning and 50.4MB in the end (delta: -6.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-14 13:11:54,028 INFO L158 Benchmark]: Witness Printer took 38.31ms. Allocated memory is still 77.6MB. Free memory was 50.4MB in the beginning and 48.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:11:54,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.63ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.2MB in the beginning and 37.0MB in the end (delta: -10.9MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.25ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 43.6MB in the end (delta: -6.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.38ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 350.24ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 30.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1490.65ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 43.5MB in the beginning and 50.4MB in the end (delta: -6.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 38.31ms. Allocated memory is still 77.6MB. Free memory was 50.4MB in the beginning and 48.7MB in the end (delta: 1.7MB). 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: 1.4s, 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s 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, 0.2s 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, 0.5s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 3 QuantifiedInterpolants, 328 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! [2021-12-14 13:11:54,063 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