./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0981.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0981.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 32b42038ead14abdb9d9a10a891c0ac1f232f4f2a6f46102e269b55a9fecf70e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:45:28,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:45:28,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:45:29,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:45:29,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:45:29,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:45:29,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:45:29,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:45:29,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:45:29,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:45:29,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:45:29,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:45:29,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:45:29,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:45:29,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:45:29,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:45:29,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:45:29,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:45:29,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:45:29,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:45:29,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:45:29,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:45:29,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:45:29,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:45:29,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:45:29,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:45:29,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:45:29,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:45:29,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:45:29,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:45:29,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:45:29,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:45:29,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:45:29,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:45:29,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:45:29,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:45:29,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:45:29,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:45:29,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:45:29,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:45:29,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:45:29,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:45:29,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:45:29,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:45:29,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:45:29,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:45:29,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:45:29,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:45:29,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:45:29,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:45:29,089 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:45:29,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:45:29,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:45:29,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:45:29,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:45:29,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:45:29,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:45:29,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:45:29,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:45:29,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:45:29,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:45:29,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:45:29,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:45:29,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:45:29,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:45:29,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:45:29,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:29,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:45:29,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:45:29,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:45:29,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:45:29,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:45:29,094 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:45:29,094 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:45:29,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:45:29,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32b42038ead14abdb9d9a10a891c0ac1f232f4f2a6f46102e269b55a9fecf70e [2022-02-20 16:45:29,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:45:29,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:45:29,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:45:29,331 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:45:29,332 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:45:29,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0981.c [2022-02-20 16:45:29,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946c1e810/282733bf48bb402da573c6486e0aa111/FLAG59c2df493 [2022-02-20 16:45:29,803 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:45:29,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0981.c [2022-02-20 16:45:29,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946c1e810/282733bf48bb402da573c6486e0aa111/FLAG59c2df493 [2022-02-20 16:45:30,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946c1e810/282733bf48bb402da573c6486e0aa111 [2022-02-20 16:45:30,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:45:30,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:45:30,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:30,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:45:30,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:45:30,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a54b945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30, skipping insertion in model container [2022-02-20 16:45:30,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:45:30,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:45:30,454 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-newlib/float_req_bl_0981.c[4209,4222] [2022-02-20 16:45:30,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:30,475 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:45:30,514 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-newlib/float_req_bl_0981.c[4209,4222] [2022-02-20 16:45:30,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:30,527 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:45:30,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30 WrapperNode [2022-02-20 16:45:30,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:30,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:30,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:45:30,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:45:30,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,612 INFO L137 Inliner]: procedures = 17, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 243 [2022-02-20 16:45:30,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:30,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:45:30,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:45:30,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:45:30,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:45:30,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:45:30,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:45:30,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:45:30,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (1/1) ... [2022-02-20 16:45:30,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:30,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:45:30,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:45:30,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:45:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:45:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:45:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:45:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:45:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:45:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:45:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:45:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:45:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:45:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:45:30,818 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:45:30,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:45:31,260 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:45:31,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:45:31,269 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-02-20 16:45:31,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:31 BoogieIcfgContainer [2022-02-20 16:45:31,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:45:31,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:45:31,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:45:31,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:45:31,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:45:30" (1/3) ... [2022-02-20 16:45:31,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f156a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:31, skipping insertion in model container [2022-02-20 16:45:31,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:30" (2/3) ... [2022-02-20 16:45:31,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f156a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:31, skipping insertion in model container [2022-02-20 16:45:31,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:31" (3/3) ... [2022-02-20 16:45:31,280 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0981.c [2022-02-20 16:45:31,283 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:45:31,283 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:45:31,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:45:31,343 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:45:31,344 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:45:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 55 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:45:31,370 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:31,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:31,372 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:31,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:31,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1397432229, now seen corresponding path program 1 times [2022-02-20 16:45:31,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:45:31,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417296052] [2022-02-20 16:45:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:31,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:45:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:31,517 INFO L290 TraceCheckUtils]: 0: Hoare triple {59#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~ln2_hi_log~0 := 0.69313812256;~ln2_lo_log~0 := 9.0580006145E-6;~two25_log~0 := 3.3554432E7;~Lg1_log~0 := 0.66666668653;~Lg2_log~0 := 0.40000000596;~Lg3_log~0 := 0.28571429849;~Lg4_log~0 := 0.22222198546;~Lg5_log~0 := 0.1818357259;~Lg6_log~0 := 0.15313838422;~Lg7_log~0 := 0.1479819864;~zero_log~0 := 0.0;~two25_log10~0 := 3.3554432E7;~ivln10_log10~0 := 0.43429449201;~log10_2hi_log10~0 := 0.30102920532;~log10_2lo_log10~0 := 7.9034151668E-7;~zero~0 := 0.0; {59#true} is VALID [2022-02-20 16:45:31,518 INFO L290 TraceCheckUtils]: 1: Hoare triple {59#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret14#1, main_#t~ret15#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0);assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem11#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret12#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1, __ieee754_log10f_#t~nondet10#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {59#true} is VALID [2022-02-20 16:45:31,519 INFO L290 TraceCheckUtils]: 2: Hoare triple {59#true} assume !true; {60#false} is VALID [2022-02-20 16:45:31,519 INFO L290 TraceCheckUtils]: 3: Hoare triple {60#false} __ieee754_log10f_~k~1#1 := 0; {60#false} is VALID [2022-02-20 16:45:31,519 INFO L290 TraceCheckUtils]: 4: Hoare triple {60#false} assume 0 == (if 0 == __ieee754_log10f_~hx~0#1 then 0 else (if 1 == __ieee754_log10f_~hx~0#1 then 1 else ~bitwiseAnd(__ieee754_log10f_~hx~0#1, 2147483647)));__ieee754_log10f_#res#1 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(~two25_log10~0), ~zero~0); {60#false} is VALID [2022-02-20 16:45:31,520 INFO L290 TraceCheckUtils]: 5: Hoare triple {60#false} main_#t~ret14#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret14#1;havoc main_#t~ret14#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem13#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {60#false} is VALID [2022-02-20 16:45:31,520 INFO L290 TraceCheckUtils]: 6: Hoare triple {60#false} assume !true; {60#false} is VALID [2022-02-20 16:45:31,520 INFO L290 TraceCheckUtils]: 7: Hoare triple {60#false} isinf_float_~ix~1#1 := (if 0 == isinf_float_~ix~1#1 then 0 else (if 1 == isinf_float_~ix~1#1 then 1 else ~bitwiseAnd(isinf_float_~ix~1#1, 2147483647)));isinf_float_#res#1 := (if 2139095040 == isinf_float_~ix~1#1 then 1 else 0); {60#false} is VALID [2022-02-20 16:45:31,520 INFO L290 TraceCheckUtils]: 8: Hoare triple {60#false} main_#t~ret15#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true;assume -2147483648 <= main_#t~ret15#1 && main_#t~ret15#1 <= 2147483647; {60#false} is VALID [2022-02-20 16:45:31,521 INFO L290 TraceCheckUtils]: 9: Hoare triple {60#false} assume 0 == main_#t~ret15#1;havoc main_#t~ret15#1; {60#false} is VALID [2022-02-20 16:45:31,521 INFO L290 TraceCheckUtils]: 10: Hoare triple {60#false} assume !false; {60#false} is VALID [2022-02-20 16:45:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:31,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:45:31,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417296052] [2022-02-20 16:45:31,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417296052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:31,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:31,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:31,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642166352] [2022-02-20 16:45:31,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:31,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:45:31,530 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:31,533 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,545 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:31,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:31,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:45:31,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:31,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:31,566 INFO L87 Difference]: Start difference. First operand has 56 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 55 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:31,647 INFO L93 Difference]: Finished difference Result 110 states and 184 transitions. [2022-02-20 16:45:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:45:31,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:45:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2022-02-20 16:45:31,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2022-02-20 16:45:31,671 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 184 transitions. [2022-02-20 16:45:31,864 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 184 edges. 184 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:31,897 INFO L225 Difference]: With dead ends: 110 [2022-02-20 16:45:31,897 INFO L226 Difference]: Without dead ends: 53 [2022-02-20 16:45:31,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:31,906 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:45:31,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:45:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-02-20 16:45:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-02-20 16:45:31,936 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:45:31,938 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,940 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,941 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:31,945 INFO L93 Difference]: Finished difference Result 53 states and 73 transitions. [2022-02-20 16:45:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-02-20 16:45:31,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:31,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:31,947 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 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 53 states. [2022-02-20 16:45:31,947 INFO L87 Difference]: Start difference. First operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 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 53 states. [2022-02-20 16:45:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:31,950 INFO L93 Difference]: Finished difference Result 53 states and 73 transitions. [2022-02-20 16:45:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-02-20 16:45:31,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:31,952 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:31,952 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:45:31,952 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:45:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2022-02-20 16:45:31,960 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 11 [2022-02-20 16:45:31,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:45:31,961 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions. [2022-02-20 16:45:31,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:31,961 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-02-20 16:45:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:45:31,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:31,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:31,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:45:31,966 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:31,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:31,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1461869416, now seen corresponding path program 1 times [2022-02-20 16:45:31,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:45:31,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557988971] [2022-02-20 16:45:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:31,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:45:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:45:32,057 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:45:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:45:32,137 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:45:32,137 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:45:32,140 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:45:32,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:45:32,145 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:45:32,147 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:45:32,197 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:45:32,199 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:45:32,199 WARN L170 areAnnotationChecker]: L110-2 has no Hoare annotation [2022-02-20 16:45:32,199 WARN L170 areAnnotationChecker]: L110-2 has no Hoare annotation [2022-02-20 16:45:32,200 WARN L170 areAnnotationChecker]: L110-1 has no Hoare annotation [2022-02-20 16:45:32,200 WARN L170 areAnnotationChecker]: L110-1 has no Hoare annotation [2022-02-20 16:45:32,200 WARN L170 areAnnotationChecker]: L110-3 has no Hoare annotation [2022-02-20 16:45:32,200 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:45:32,200 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:45:32,200 WARN L170 areAnnotationChecker]: L142 has no Hoare annotation [2022-02-20 16:45:32,200 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L148-2 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L148-2 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L121 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L121 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L148-1 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L148-1 has no Hoare annotation [2022-02-20 16:45:32,201 WARN L170 areAnnotationChecker]: L148-3 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L154 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L126-2 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L126-2 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L123-1 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L169 has no Hoare annotation [2022-02-20 16:45:32,202 WARN L170 areAnnotationChecker]: L169 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L126-1 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L126-1 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L170 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L170 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L173 has no Hoare annotation [2022-02-20 16:45:32,203 WARN L170 areAnnotationChecker]: L134-8 has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: L134-4 has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: L134-4 has no Hoare annotation [2022-02-20 16:45:32,204 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L136-3 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L134-6 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L134-6 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:45:32,205 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:45:32,206 WARN L170 areAnnotationChecker]: L25-3 has no Hoare annotation [2022-02-20 16:45:32,206 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-02-20 16:45:32,206 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-02-20 16:45:32,206 WARN L170 areAnnotationChecker]: L95 has no Hoare annotation [2022-02-20 16:45:32,207 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 16:45:32,208 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 16:45:32,208 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:45:32,208 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:45:32,208 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:45:32,208 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:45:32,208 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2022-02-20 16:45:32,208 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-02-20 16:45:32,209 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:45:32,210 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:45:32,211 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:45:32,212 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2022-02-20 16:45:32,212 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2022-02-20 16:45:32,212 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2022-02-20 16:45:32,212 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2022-02-20 16:45:32,213 WARN L170 areAnnotationChecker]: L92 has no Hoare annotation [2022-02-20 16:45:32,213 WARN L170 areAnnotationChecker]: L92 has no Hoare annotation [2022-02-20 16:45:32,213 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:45:32,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:45:32 BoogieIcfgContainer [2022-02-20 16:45:32,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:45:32,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:45:32,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:45:32,216 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:45:32,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:31" (3/4) ... [2022-02-20 16:45:32,219 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:45:32,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:45:32,221 INFO L158 Benchmark]: Toolchain (without parser) took 1990.09ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 57.4MB in the beginning and 70.8MB in the end (delta: -13.4MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:32,222 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 73.8MB in the beginning and 73.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:32,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.92ms. Allocated memory is still 96.5MB. Free memory was 57.2MB in the beginning and 67.5MB in the end (delta: -10.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-02-20 16:45:32,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.53ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 64.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 16:45:32,227 INFO L158 Benchmark]: Boogie Preprocessor took 71.91ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 61.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:32,228 INFO L158 Benchmark]: RCFGBuilder took 585.39ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.5MB in the beginning and 80.1MB in the end (delta: -18.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-02-20 16:45:32,228 INFO L158 Benchmark]: TraceAbstraction took 941.07ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 70.8MB in the end (delta: 9.3MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:32,229 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 117.4MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:32,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 73.8MB in the beginning and 73.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.92ms. Allocated memory is still 96.5MB. Free memory was 57.2MB in the beginning and 67.5MB in the end (delta: -10.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.53ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 64.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.91ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 61.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.39ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.5MB in the beginning and 80.1MB in the end (delta: -18.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 941.07ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 70.8MB in the end (delta: 9.3MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 117.4MB. Free memory is still 70.8MB. 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: 170]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 153. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L165] float x = 1.0f / 0.0f; [L166] CALL, EXPR __ieee754_log10f(x) [L107] float y, z; [L108] __int32_t i, k, hx; VAL [\old(x)=8589934592, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [\old(x)=8589934592, hx=-2, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [\old(x)=8589934592, hx=-2, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] [L166] RET, EXPR __ieee754_log10f(x) [L166] float res = __ieee754_log10f(x); [L169] CALL, EXPR isinf_float(res) [L147] __int32_t ix; VAL [\old(x)=8589934591, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934591, zero=0, zero_log=0] [L149] ieee_float_shape_type gf_u; [L150] gf_u.value = (x) [L151] EXPR gf_u.word [L151] (ix) = gf_u.word [L153] ix &= 0x7fffffff [L154] return ((ix) == 0x7f800000L); VAL [\old(x)=8589934591, \result=0, ivln10_log10=43429449201/100000000000, ix=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934591, zero=0, zero_log=0] [L169] RET, EXPR isinf_float(res) [L169] COND TRUE !isinf_float(res) [L170] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=8589934591, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 76 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 16:45:32,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0981.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 32b42038ead14abdb9d9a10a891c0ac1f232f4f2a6f46102e269b55a9fecf70e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:45:34,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:45:34,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:45:34,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:45:34,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:45:34,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:45:34,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:45:34,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:45:34,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:45:34,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:45:34,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:45:34,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:45:34,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:45:34,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:45:34,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:45:34,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:45:34,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:45:34,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:45:34,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:45:34,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:45:34,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:45:34,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:45:34,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:45:34,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:45:34,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:45:34,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:45:34,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:45:34,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:45:34,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:45:34,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:45:34,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:45:34,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:45:34,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:45:34,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:45:34,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:45:34,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:45:34,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:45:34,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:45:34,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:45:34,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:45:34,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:45:34,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:45:34,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:45:34,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:45:34,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:45:34,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:45:34,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:45:34,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:45:34,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:45:34,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:45:34,275 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:45:34,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:45:34,276 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:45:34,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:45:34,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:45:34,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:45:34,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:45:34,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:45:34,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:45:34,277 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:45:34,278 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:45:34,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:45:34,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:45:34,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:45:34,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:45:34,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:45:34,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:45:34,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:45:34,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:34,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:45:34,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:45:34,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:45:34,280 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:45:34,281 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:45:34,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:45:34,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:45:34,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:45:34,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:45:34,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32b42038ead14abdb9d9a10a891c0ac1f232f4f2a6f46102e269b55a9fecf70e [2022-02-20 16:45:34,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:45:34,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:45:34,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:45:34,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:45:34,606 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:45:34,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0981.c [2022-02-20 16:45:34,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daebac974/aa5f4120ffed4bc5bbdd4f622e7028fa/FLAG618197065 [2022-02-20 16:45:35,136 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:45:35,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0981.c [2022-02-20 16:45:35,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daebac974/aa5f4120ffed4bc5bbdd4f622e7028fa/FLAG618197065 [2022-02-20 16:45:35,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daebac974/aa5f4120ffed4bc5bbdd4f622e7028fa [2022-02-20 16:45:35,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:45:35,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:45:35,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:35,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:45:35,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:45:35,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609aa5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35, skipping insertion in model container [2022-02-20 16:45:35,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:45:35,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:45:35,352 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-newlib/float_req_bl_0981.c[4209,4222] [2022-02-20 16:45:35,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:35,404 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:45:35,464 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-newlib/float_req_bl_0981.c[4209,4222] [2022-02-20 16:45:35,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:35,479 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:45:35,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35 WrapperNode [2022-02-20 16:45:35,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:35,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:35,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:45:35,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:45:35,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,558 INFO L137 Inliner]: procedures = 20, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 219 [2022-02-20 16:45:35,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:35,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:45:35,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:45:35,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:45:35,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:45:35,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:45:35,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:45:35,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:45:35,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (1/1) ... [2022-02-20 16:45:35,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:35,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:45:35,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:45:35,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:45:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:45:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:45:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:45:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-02-20 16:45:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:45:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:45:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:45:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-02-20 16:45:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:45:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:45:35,799 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:45:35,801 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:45:57,288 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:45:57,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:45:57,301 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-02-20 16:45:57,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:57 BoogieIcfgContainer [2022-02-20 16:45:57,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:45:57,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:45:57,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:45:57,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:45:57,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:45:35" (1/3) ... [2022-02-20 16:45:57,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251a1444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:57, skipping insertion in model container [2022-02-20 16:45:57,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:35" (2/3) ... [2022-02-20 16:45:57,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251a1444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:57, skipping insertion in model container [2022-02-20 16:45:57,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:57" (3/3) ... [2022-02-20 16:45:57,314 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0981.c [2022-02-20 16:45:57,318 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:45:57,318 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:45:57,350 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:45:57,356 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:45:57,356 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:45:57,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:57,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:45:57,370 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:57,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:57,371 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:57,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:57,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2022-02-20 16:45:57,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:45:57,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994084133] [2022-02-20 16:45:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:57,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:45:57,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:45:57,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:45:57,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:45:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:57,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:45:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:57,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:57,996 INFO L290 TraceCheckUtils]: 0: Hoare triple {50#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE());~two25_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~ivln10_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.43429449201));~log10_2hi_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.30102920532));~log10_2lo_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 7.9034151668E-7));~zero~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {50#true} is VALID [2022-02-20 16:45:58,006 INFO L290 TraceCheckUtils]: 1: Hoare triple {50#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_#t~ret13#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem7#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret10#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {50#true} is VALID [2022-02-20 16:45:58,007 INFO L290 TraceCheckUtils]: 2: Hoare triple {50#true} assume !true; {51#false} is VALID [2022-02-20 16:45:58,008 INFO L290 TraceCheckUtils]: 3: Hoare triple {51#false} __ieee754_log10f_~k~1#1 := 0bv32; {51#false} is VALID [2022-02-20 16:45:58,008 INFO L290 TraceCheckUtils]: 4: Hoare triple {51#false} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_log10f_~hx~0#1);__ieee754_log10f_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log10~0), ~zero~0); {51#false} is VALID [2022-02-20 16:45:58,009 INFO L290 TraceCheckUtils]: 5: Hoare triple {51#false} main_#t~ret12#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret12#1;havoc main_#t~ret12#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem11#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {51#false} is VALID [2022-02-20 16:45:58,010 INFO L290 TraceCheckUtils]: 6: Hoare triple {51#false} assume !true; {51#false} is VALID [2022-02-20 16:45:58,010 INFO L290 TraceCheckUtils]: 7: Hoare triple {51#false} isinf_float_~ix~1#1 := ~bvand32(2147483647bv32, isinf_float_~ix~1#1);isinf_float_#res#1 := (if 2139095040bv32 == isinf_float_~ix~1#1 then 1bv32 else 0bv32); {51#false} is VALID [2022-02-20 16:45:58,010 INFO L290 TraceCheckUtils]: 8: Hoare triple {51#false} main_#t~ret13#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true; {51#false} is VALID [2022-02-20 16:45:58,010 INFO L290 TraceCheckUtils]: 9: Hoare triple {51#false} assume 0bv32 == main_#t~ret13#1;havoc main_#t~ret13#1; {51#false} is VALID [2022-02-20 16:45:58,011 INFO L290 TraceCheckUtils]: 10: Hoare triple {51#false} assume !false; {51#false} is VALID [2022-02-20 16:45:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:58,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:58,013 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:58,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994084133] [2022-02-20 16:45:58,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994084133] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:58,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:58,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:58,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032595779] [2022-02-20 16:45:58,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:58,027 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:45:58,028 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:58,031 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:58,209 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:58,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:58,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:58,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:58,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:58,236 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:19,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:19,411 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2022-02-20 16:46:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:46:19,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:46:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:46:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2022-02-20 16:46:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:19,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2022-02-20 16:46:19,430 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 150 transitions. [2022-02-20 16:46:23,436 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:46:23,444 INFO L225 Difference]: With dead ends: 92 [2022-02-20 16:46:23,444 INFO L226 Difference]: Without dead ends: 44 [2022-02-20 16:46:23,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:46:23,450 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:46:23,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:46:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-02-20 16:46:23,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-02-20 16:46:23,477 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:46:23,478 INFO L82 GeneralOperation]: Start isEquivalent. First operand 44 states. Second operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:23,478 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:23,479 INFO L87 Difference]: Start difference. First operand 44 states. Second operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:23,484 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2022-02-20 16:46:23,484 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-02-20 16:46:23,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:46:23,485 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:46:23,489 INFO L74 IsIncluded]: Start isIncluded. First operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 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 44 states. [2022-02-20 16:46:23,489 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 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 44 states. [2022-02-20 16:46:23,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:23,498 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2022-02-20 16:46:23,499 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-02-20 16:46:23,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:46:23,499 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:46:23,500 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:46:23,501 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:46:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:23,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2022-02-20 16:46:23,506 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2022-02-20 16:46:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:46:23,507 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2022-02-20 16:46:23,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-02-20 16:46:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:46:23,508 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:46:23,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:46:23,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-02-20 16:46:23,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:46:23,714 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:46:23,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:46:23,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2022-02-20 16:46:23,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:46:23,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003444857] [2022-02-20 16:46:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:46:23,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:46:23,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:46:23,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:46:23,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:46:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:46:24,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-20 16:46:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:46:24,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:46:24,681 INFO L290 TraceCheckUtils]: 0: Hoare triple {340#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE());~two25_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~ivln10_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.43429449201));~log10_2hi_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.30102920532));~log10_2lo_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 7.9034151668E-7));~zero~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {340#true} is VALID [2022-02-20 16:46:24,684 INFO L290 TraceCheckUtils]: 1: Hoare triple {340#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_#t~ret13#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem7#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret10#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {348#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|))} is VALID [2022-02-20 16:46:24,690 INFO L290 TraceCheckUtils]: 2: Hoare triple {348#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|))} call __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_log10f_~x#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, 4bv32);call __ieee754_log10f_#t~mem7#1 := read~intINTTYPE4(__ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, 4bv32);__ieee754_log10f_~hx~0#1 := __ieee754_log10f_#t~mem7#1;havoc __ieee754_log10f_#t~mem7#1;call ULTIMATE.dealloc(__ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset);havoc __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset; {352#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} is VALID [2022-02-20 16:46:24,691 INFO L290 TraceCheckUtils]: 3: Hoare triple {352#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} goto; {352#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} is VALID [2022-02-20 16:46:24,691 INFO L290 TraceCheckUtils]: 4: Hoare triple {352#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} __ieee754_log10f_~k~1#1 := 0bv32; {352#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} is VALID [2022-02-20 16:46:24,842 INFO L290 TraceCheckUtils]: 5: Hoare triple {352#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_log10f_~hx~0#1);__ieee754_log10f_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log10~0), ~zero~0); {341#false} is VALID [2022-02-20 16:46:24,842 INFO L290 TraceCheckUtils]: 6: Hoare triple {341#false} main_#t~ret12#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret12#1;havoc main_#t~ret12#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem11#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {341#false} is VALID [2022-02-20 16:46:24,842 INFO L290 TraceCheckUtils]: 7: Hoare triple {341#false} call isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, 4bv32);call isinf_float_#t~mem11#1 := read~intINTTYPE4(isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, 4bv32);isinf_float_~ix~1#1 := isinf_float_#t~mem11#1;havoc isinf_float_#t~mem11#1;call ULTIMATE.dealloc(isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset);havoc isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset; {341#false} is VALID [2022-02-20 16:46:24,842 INFO L290 TraceCheckUtils]: 8: Hoare triple {341#false} goto; {341#false} is VALID [2022-02-20 16:46:24,842 INFO L290 TraceCheckUtils]: 9: Hoare triple {341#false} isinf_float_~ix~1#1 := ~bvand32(2147483647bv32, isinf_float_~ix~1#1);isinf_float_#res#1 := (if 2139095040bv32 == isinf_float_~ix~1#1 then 1bv32 else 0bv32); {341#false} is VALID [2022-02-20 16:46:24,843 INFO L290 TraceCheckUtils]: 10: Hoare triple {341#false} main_#t~ret13#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true; {341#false} is VALID [2022-02-20 16:46:24,843 INFO L290 TraceCheckUtils]: 11: Hoare triple {341#false} assume 0bv32 == main_#t~ret13#1;havoc main_#t~ret13#1; {341#false} is VALID [2022-02-20 16:46:24,843 INFO L290 TraceCheckUtils]: 12: Hoare triple {341#false} assume !false; {341#false} is VALID [2022-02-20 16:46:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:46:24,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:46:24,844 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:46:24,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003444857] [2022-02-20 16:46:24,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003444857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:46:24,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:46:24,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:46:24,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068529534] [2022-02-20 16:46:24,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:46:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-02-20 16:46:24,846 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:46:24,846 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:25,012 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:46:25,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:46:25,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:46:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:46:25,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:46:25,013 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)