./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0834.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0834.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 50ed40b69e81fb917053aec6552591dca3f64c8cb874eda039e4af9ce9424f97 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:30:44,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:30:44,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:30:44,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:30:44,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:30:44,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:30:44,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:30:44,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:30:44,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:30:44,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:30:44,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:30:44,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:30:44,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:30:44,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:30:44,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:30:44,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:30:44,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:30:44,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:30:44,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:30:44,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:30:44,783 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:30:44,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:30:44,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:30:44,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:30:44,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:30:44,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:30:44,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:30:44,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:30:44,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:30:44,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:30:44,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:30:44,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:30:44,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:30:44,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:30:44,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:30:44,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:30:44,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:30:44,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:30:44,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:30:44,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:30:44,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:30:44,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:30:44,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 14:30:44,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:30:44,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:30:44,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:30:44,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:30:44,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:30:44,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:30:44,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:30:44,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:30:44,837 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:30:44,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:30:44,838 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:30:44,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 14:30:44,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:30:44,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:30:44,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:30:44,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:30:44,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:30:44,839 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:30:44,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:30:44,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:30:44,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:30:44,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:30:44,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:30:44,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:30:44,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:30:44,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:30:44,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:30:44,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:30:44,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 14:30:44,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 14:30:44,842 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:30:44,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:30:44,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:30:44,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50ed40b69e81fb917053aec6552591dca3f64c8cb874eda039e4af9ce9424f97 [2022-07-22 14:30:45,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:30:45,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:30:45,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:30:45,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:30:45,086 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:30:45,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0834.c [2022-07-22 14:30:45,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fde20fdf/4a5be28fcf7e4ac4a72295d16813ec6f/FLAGd9f976b26 [2022-07-22 14:30:45,582 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:30:45,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0834.c [2022-07-22 14:30:45,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fde20fdf/4a5be28fcf7e4ac4a72295d16813ec6f/FLAGd9f976b26 [2022-07-22 14:30:45,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fde20fdf/4a5be28fcf7e4ac4a72295d16813ec6f [2022-07-22 14:30:45,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:30:45,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:30:45,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:30:45,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:30:45,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:30:45,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:30:45" (1/1) ... [2022-07-22 14:30:45,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184b1a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:45, skipping insertion in model container [2022-07-22 14:30:45,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:30:45" (1/1) ... [2022-07-22 14:30:45,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:30:46,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:30:46,254 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_0834.c[3447,3460] [2022-07-22 14:30:46,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:30:46,266 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:30:46,312 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_0834.c[3447,3460] [2022-07-22 14:30:46,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:30:46,325 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:30:46,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46 WrapperNode [2022-07-22 14:30:46,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:30:46,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:30:46,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:30:46,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:30:46,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,374 INFO L137 Inliner]: procedures = 19, calls = 47, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 204 [2022-07-22 14:30:46,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:30:46,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:30:46,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:30:46,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:30:46,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:30:46,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:30:46,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:30:46,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:30:46,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (1/1) ... [2022-07-22 14:30:46,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:30:46,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:30:46,455 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) [2022-07-22 14:30:46,467 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 [2022-07-22 14:30:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:30:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 14:30:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:30:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 14:30:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-22 14:30:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-22 14:30:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:30:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:30:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 14:30:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-22 14:30:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:30:46,595 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:30:46,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:30:46,847 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:30:46,852 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:30:46,853 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-22 14:30:46,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:30:46 BoogieIcfgContainer [2022-07-22 14:30:46,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:30:46,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:30:46,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:30:46,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:30:46,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:30:45" (1/3) ... [2022-07-22 14:30:46,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4665b34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:30:46, skipping insertion in model container [2022-07-22 14:30:46,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:46" (2/3) ... [2022-07-22 14:30:46,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4665b34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:30:46, skipping insertion in model container [2022-07-22 14:30:46,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:30:46" (3/3) ... [2022-07-22 14:30:46,865 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0834.c [2022-07-22 14:30:46,918 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:30:46,919 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:30:46,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:30:47,000 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@347a3587, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@30d55a58 [2022-07-22 14:30:47,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:30:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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) [2022-07-22 14:30:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 14:30:47,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:30:47,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:30:47,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:30:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:30:47,017 INFO L85 PathProgramCache]: Analyzing trace with hash 472454986, now seen corresponding path program 1 times [2022-07-22 14:30:47,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:30:47,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544842101] [2022-07-22 14:30:47,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:30:47,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:30:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:30:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:30:47,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:30:47,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544842101] [2022-07-22 14:30:47,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544842101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:30:47,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:30:47,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:30:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308102423] [2022-07-22 14:30:47,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:30:47,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:30:47,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:30:47,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:30:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:30:47,243 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:30:47,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:30:47,267 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2022-07-22 14:30:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:30:47,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-22 14:30:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:30:47,276 INFO L225 Difference]: With dead ends: 91 [2022-07-22 14:30:47,276 INFO L226 Difference]: Without dead ends: 43 [2022-07-22 14:30:47,280 INFO L412 NwaCegarLoop]: 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 [2022-07-22 14:30:47,284 INFO L413 NwaCegarLoop]: 60 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, 60 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 [2022-07-22 14:30:47,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:30:47,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-07-22 14:30:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-07-22 14:30:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 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) [2022-07-22 14:30:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2022-07-22 14:30:47,320 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 12 [2022-07-22 14:30:47,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:30:47,321 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2022-07-22 14:30:47,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:30:47,321 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-07-22 14:30:47,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 14:30:47,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:30:47,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:30:47,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 14:30:47,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:30:47,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:30:47,324 INFO L85 PathProgramCache]: Analyzing trace with hash 299673487, now seen corresponding path program 1 times [2022-07-22 14:30:47,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:30:47,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55606453] [2022-07-22 14:30:47,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:30:47,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:30:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:30:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:30:47,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:30:47,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55606453] [2022-07-22 14:30:47,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55606453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:30:47,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:30:47,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 14:30:47,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559490668] [2022-07-22 14:30:47,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:30:47,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 14:30:47,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:30:47,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 14:30:47,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:30:47,432 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-07-22 14:30:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:30:47,473 INFO L93 Difference]: Finished difference Result 96 states and 121 transitions. [2022-07-22 14:30:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 14:30:47,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-07-22 14:30:47,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:30:47,476 INFO L225 Difference]: With dead ends: 96 [2022-07-22 14:30:47,476 INFO L226 Difference]: Without dead ends: 71 [2022-07-22 14:30:47,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:30:47,477 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 31 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:30:47,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 93 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:30:47,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-07-22 14:30:47,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 49. [2022-07-22 14:30:47,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 48 states have internal predecessors, (64), 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) [2022-07-22 14:30:47,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2022-07-22 14:30:47,485 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 14 [2022-07-22 14:30:47,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:30:47,486 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2022-07-22 14:30:47,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-07-22 14:30:47,486 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2022-07-22 14:30:47,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 14:30:47,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:30:47,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:30:47,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 14:30:47,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:30:47,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:30:47,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1094786826, now seen corresponding path program 1 times [2022-07-22 14:30:47,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:30:47,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201571079] [2022-07-22 14:30:47,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:30:47,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:30:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:30:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:30:47,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:30:47,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201571079] [2022-07-22 14:30:47,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201571079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:30:47,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:30:47,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 14:30:47,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358858900] [2022-07-22 14:30:47,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:30:47,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 14:30:47,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:30:47,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 14:30:47,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:30:47,543 INFO L87 Difference]: Start difference. First operand 49 states and 64 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-07-22 14:30:47,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:30:47,574 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2022-07-22 14:30:47,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 14:30:47,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-07-22 14:30:47,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:30:47,576 INFO L225 Difference]: With dead ends: 93 [2022-07-22 14:30:47,576 INFO L226 Difference]: Without dead ends: 85 [2022-07-22 14:30:47,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:30:47,578 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 45 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:30:47,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 113 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:30:47,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-22 14:30:47,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 56. [2022-07-22 14:30:47,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 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) [2022-07-22 14:30:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 74 transitions. [2022-07-22 14:30:47,586 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 74 transitions. Word has length 16 [2022-07-22 14:30:47,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:30:47,587 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 74 transitions. [2022-07-22 14:30:47,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-07-22 14:30:47,587 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2022-07-22 14:30:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 14:30:47,588 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:30:47,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:30:47,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 14:30:47,589 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:30:47,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:30:47,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1249306747, now seen corresponding path program 1 times [2022-07-22 14:30:47,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:30:47,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248489857] [2022-07-22 14:30:47,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:30:47,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:30:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:30:47,657 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 14:30:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:30:47,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 14:30:47,746 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 14:30:47,747 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:30:47,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 14:30:47,754 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-22 14:30:47,757 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:30:47,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:30:47 BoogieIcfgContainer [2022-07-22 14:30:47,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:30:47,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:30:47,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:30:47,798 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:30:47,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:30:46" (3/4) ... [2022-07-22 14:30:47,809 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 14:30:47,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:30:47,810 INFO L158 Benchmark]: Toolchain (without parser) took 1828.08ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 63.7MB in the beginning and 68.1MB in the end (delta: -4.4MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-07-22 14:30:47,810 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:30:47,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.93ms. Allocated memory is still 96.5MB. Free memory was 63.5MB in the beginning and 70.1MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 14:30:47,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.98ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:30:47,812 INFO L158 Benchmark]: Boogie Preprocessor took 27.66ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 66.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:30:47,812 INFO L158 Benchmark]: RCFGBuilder took 451.11ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 50.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 14:30:47,813 INFO L158 Benchmark]: TraceAbstraction took 941.21ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 50.3MB in the beginning and 68.1MB in the end (delta: -17.8MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-07-22 14:30:47,813 INFO L158 Benchmark]: Witness Printer took 11.93ms. Allocated memory is still 136.3MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:30:47,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.93ms. Allocated memory is still 96.5MB. Free memory was 63.5MB in the beginning and 70.1MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.98ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.66ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 66.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.11ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 50.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 941.21ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 50.3MB in the beginning and 68.1MB in the end (delta: -17.8MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Witness Printer took 11.93ms. Allocated memory is still 136.3MB. Free memory is still 68.1MB. 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 52, overapproximation of bitwiseAnd at line 121. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L132] float x = 1.0f / 0.0f; [L133] CALL, EXPR __ieee754_expf(x) [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [\old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 VAL [\old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001, xsb=0] [L49] hx = sx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, hx = sx & 0x7fffffff=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001, xsb=0] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [\old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, hx = sx & 0x7fffffff=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001, xsb=0] [L133] RET, EXPR __ieee754_expf(x) [L133] float res = __ieee754_expf(x); [L136] CALL, EXPR isinf_float(res) [L115] __int32_t ix; VAL [\old(x)=1000000000000000000000000000002, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx = sx & 0x7fffffff=2147483647, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000002] [L117] ieee_float_shape_type gf_u; [L118] gf_u.value = (x) [L119] EXPR gf_u.word [L119] (ix) = gf_u.word [L121] ix &= 0x7fffffff [L122] return ((ix) == 0x7f800000L); VAL [\old(x)=1000000000000000000000000000002, \result=0, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx = sx & 0x7fffffff=2147483647, invln2_exp=1803368777/1250000000, ix=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000002] [L136] RET, EXPR isinf_float(res) [L136] COND TRUE !isinf_float(res) [L137] reach_error() VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx = sx & 0x7fffffff=2147483647, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=1000000000000000000000000000002, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 266 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 183 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 3 MinimizatonAttempts, 51 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2022-07-22 14:30:47,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0834.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 50ed40b69e81fb917053aec6552591dca3f64c8cb874eda039e4af9ce9424f97 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:30:49,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:30:49,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:30:49,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:30:49,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:30:49,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:30:49,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:30:49,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:30:49,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:30:49,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:30:49,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:30:49,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:30:49,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:30:49,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:30:49,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:30:49,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:30:49,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:30:49,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:30:49,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:30:49,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:30:49,878 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:30:49,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:30:49,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:30:49,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:30:49,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:30:49,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:30:49,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:30:49,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:30:49,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:30:49,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:30:49,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:30:49,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:30:49,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:30:49,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:30:49,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:30:49,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:30:49,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:30:49,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:30:49,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:30:49,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:30:49,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:30:49,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:30:49,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 14:30:49,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:30:49,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:30:49,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:30:49,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:30:49,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:30:49,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:30:49,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:30:49,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:30:49,940 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:30:49,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:30:49,941 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:30:49,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:30:49,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:30:49,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:30:49,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:30:49,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:30:49,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 14:30:49,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 14:30:49,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 14:30:49,943 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:30:49,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:30:49,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:30:49,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:30:49,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:30:49,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:30:49,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:30:49,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:30:49,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:30:49,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:30:49,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:30:49,945 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 14:30:49,945 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 14:30:49,945 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:30:49,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:30:49,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:30:49,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 14:30:49,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50ed40b69e81fb917053aec6552591dca3f64c8cb874eda039e4af9ce9424f97 [2022-07-22 14:30:50,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:30:50,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:30:50,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:30:50,310 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:30:50,311 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:30:50,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0834.c [2022-07-22 14:30:50,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06833166c/f4903426461749e7b14adace05e2ae3d/FLAG3565dec74 [2022-07-22 14:30:50,843 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:30:50,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0834.c [2022-07-22 14:30:50,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06833166c/f4903426461749e7b14adace05e2ae3d/FLAG3565dec74 [2022-07-22 14:30:50,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06833166c/f4903426461749e7b14adace05e2ae3d [2022-07-22 14:30:50,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:30:50,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:30:50,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:30:50,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:30:50,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:30:50,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:30:50" (1/1) ... [2022-07-22 14:30:50,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76743020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:50, skipping insertion in model container [2022-07-22 14:30:50,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:30:50" (1/1) ... [2022-07-22 14:30:50,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:30:50,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:30:51,118 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_0834.c[3447,3460] [2022-07-22 14:30:51,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:30:51,131 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:30:51,158 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_0834.c[3447,3460] [2022-07-22 14:30:51,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:30:51,174 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:30:51,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51 WrapperNode [2022-07-22 14:30:51,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:30:51,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:30:51,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:30:51,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:30:51,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,216 INFO L137 Inliner]: procedures = 22, calls = 47, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 181 [2022-07-22 14:30:51,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:30:51,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:30:51,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:30:51,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:30:51,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:30:51,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:30:51,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:30:51,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:30:51,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (1/1) ... [2022-07-22 14:30:51,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:30:51,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:30:51,309 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) [2022-07-22 14:30:51,320 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 [2022-07-22 14:30:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:30:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-22 14:30:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 14:30:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:30:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-22 14:30:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 14:30:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:30:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:30:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-22 14:30:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 14:30:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:30:51,478 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:30:51,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:31:00,819 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:31:00,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:31:00,824 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-22 14:31:00,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:31:00 BoogieIcfgContainer [2022-07-22 14:31:00,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:31:00,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:31:00,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:31:00,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:31:00,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:30:50" (1/3) ... [2022-07-22 14:31:00,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94f1678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:31:00, skipping insertion in model container [2022-07-22 14:31:00,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:30:51" (2/3) ... [2022-07-22 14:31:00,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94f1678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:31:00, skipping insertion in model container [2022-07-22 14:31:00,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:31:00" (3/3) ... [2022-07-22 14:31:00,834 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0834.c [2022-07-22 14:31:00,846 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:31:00,847 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:31:00,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:31:00,894 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e3acb9b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@764f20f5 [2022-07-22 14:31:00,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:31:00,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 39 states have internal predecessors, (63), 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) [2022-07-22 14:31:00,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:31:00,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:31:00,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:31:00,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:31:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:31:00,911 INFO L85 PathProgramCache]: Analyzing trace with hash 619608955, now seen corresponding path program 1 times [2022-07-22 14:31:00,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:31:00,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777070728] [2022-07-22 14:31:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:31:00,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:31:00,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:31:00,928 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) [2022-07-22 14:31:00,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 14:31:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:31:01,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 14:31:01,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:31:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:31:01,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:31:01,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:31:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777070728] [2022-07-22 14:31:01,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777070728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:31:01,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:31:01,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:31:01,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603066408] [2022-07-22 14:31:01,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:31:01,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:31:01,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:31:01,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:31:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:31:01,398 INFO L87 Difference]: Start difference. First operand has 40 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 39 states have internal predecessors, (63), 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) [2022-07-22 14:31:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:31:01,423 INFO L93 Difference]: Finished difference Result 78 states and 124 transitions. [2022-07-22 14:31:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:31:01,425 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 [2022-07-22 14:31:01,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:31:01,432 INFO L225 Difference]: With dead ends: 78 [2022-07-22 14:31:01,433 INFO L226 Difference]: Without dead ends: 37 [2022-07-22 14:31:01,436 INFO L412 NwaCegarLoop]: 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 [2022-07-22 14:31:01,443 INFO L413 NwaCegarLoop]: 50 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, 50 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 [2022-07-22 14:31:01,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:31:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-22 14:31:01,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-22 14:31:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 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) [2022-07-22 14:31:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2022-07-22 14:31:01,485 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 11 [2022-07-22 14:31:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:31:01,485 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2022-07-22 14:31:01,485 INFO L496 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) [2022-07-22 14:31:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-07-22 14:31:01,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:31:01,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:31:01,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:31:01,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 14:31:01,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:31:01,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:31:01,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:31:01,701 INFO L85 PathProgramCache]: Analyzing trace with hash -434363397, now seen corresponding path program 1 times [2022-07-22 14:31:01,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:31:01,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663556919] [2022-07-22 14:31:01,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:31:01,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:31:01,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:31:01,705 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) [2022-07-22 14:31:01,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 14:31:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:31:02,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:31:02,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:31:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:31:02,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:31:02,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:31:02,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663556919] [2022-07-22 14:31:02,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663556919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:31:02,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:31:02,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:31:02,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914638732] [2022-07-22 14:31:02,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:31:02,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:31:02,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:31:02,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:31:02,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:31:02,364 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2022-07-22 14:31:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:31:02,373 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2022-07-22 14:31:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:31:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2022-07-22 14:31:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:31:02,374 INFO L225 Difference]: With dead ends: 45 [2022-07-22 14:31:02,374 INFO L226 Difference]: Without dead ends: 37 [2022-07-22 14:31:02,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:31:02,376 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:31:02,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 28 Unchecked, 0.0s Time] [2022-07-22 14:31:02,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-22 14:31:02,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-22 14:31:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 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) [2022-07-22 14:31:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2022-07-22 14:31:02,382 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 13 [2022-07-22 14:31:02,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:31:02,382 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2022-07-22 14:31:02,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2022-07-22 14:31:02,382 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2022-07-22 14:31:02,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 14:31:02,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:31:02,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:31:02,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 14:31:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:31:02,608 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:31:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:31:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash 59976534, now seen corresponding path program 1 times [2022-07-22 14:31:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:31:02,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018825621] [2022-07-22 14:31:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:31:02,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:31:02,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:31:02,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:31:02,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 14:31:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:31:03,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:31:03,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:31:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:31:03,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:31:03,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:31:03,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018825621] [2022-07-22 14:31:03,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018825621] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:31:03,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:31:03,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:31:03,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895728928] [2022-07-22 14:31:03,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:31:03,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:31:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:31:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:31:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:31:03,265 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-07-22 14:31:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:31:03,269 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-07-22 14:31:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:31:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2022-07-22 14:31:03,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:31:03,270 INFO L225 Difference]: With dead ends: 45 [2022-07-22 14:31:03,270 INFO L226 Difference]: Without dead ends: 17 [2022-07-22 14:31:03,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:31:03,271 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:31:03,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-07-22 14:31:03,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-22 14:31:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-22 14:31:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-07-22 14:31:03,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-07-22 14:31:03,274 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2022-07-22 14:31:03,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:31:03,275 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-07-22 14:31:03,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-07-22 14:31:03,275 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-07-22 14:31:03,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 14:31:03,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:31:03,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:31:03,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 14:31:03,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:31:03,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:31:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:31:03,498 INFO L85 PathProgramCache]: Analyzing trace with hash -760163818, now seen corresponding path program 1 times [2022-07-22 14:31:03,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:31:03,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179987188] [2022-07-22 14:31:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:31:03,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:31:03,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:31:03,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:31:03,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 14:31:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:31:03,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-22 14:31:03,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:31:04,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:31:04,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:31:04,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:31:04,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179987188] [2022-07-22 14:31:04,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179987188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:31:04,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:31:04,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 14:31:04,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862944805] [2022-07-22 14:31:04,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:31:04,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 14:31:04,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:31:04,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 14:31:04,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-22 14:31:04,654 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 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) [2022-07-22 14:31:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:31:05,686 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2022-07-22 14:31:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 14:31:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 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 16 [2022-07-22 14:31:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:31:05,688 INFO L225 Difference]: With dead ends: 26 [2022-07-22 14:31:05,688 INFO L226 Difference]: Without dead ends: 17 [2022-07-22 14:31:05,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-22 14:31:05,689 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 43 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 14:31:05,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 66 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 14:31:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-22 14:31:05,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-22 14:31:05,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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) [2022-07-22 14:31:05,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-07-22 14:31:05,693 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2022-07-22 14:31:05,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:31:05,693 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-07-22 14:31:05,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 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) [2022-07-22 14:31:05,694 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-07-22 14:31:05,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 14:31:05,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:31:05,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:31:05,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 14:31:05,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:31:05,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:31:05,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:31:05,900 INFO L85 PathProgramCache]: Analyzing trace with hash -80105448, now seen corresponding path program 1 times [2022-07-22 14:31:05,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:31:05,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304046585] [2022-07-22 14:31:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:31:05,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:31:05,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:31:05,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:31:05,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 14:31:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:31:06,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:31:06,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:31:06,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:31:06,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:31:06,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:31:06,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304046585] [2022-07-22 14:31:06,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304046585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:31:06,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:31:06,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:31:06,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785304428] [2022-07-22 14:31:06,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:31:06,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:31:06,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:31:06,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:31:06,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:31:06,602 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2022-07-22 14:31:06,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:31:06,603 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-07-22 14:31:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:31:06,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2022-07-22 14:31:06,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:31:06,604 INFO L225 Difference]: With dead ends: 17 [2022-07-22 14:31:06,604 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 14:31:06,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:31:06,605 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:31:06,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-07-22 14:31:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 14:31:06,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 14:31:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:31:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 14:31:06,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-07-22 14:31:06,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:31:06,606 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 14:31:06,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2022-07-22 14:31:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 14:31:06,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 14:31:06,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:31:06,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 14:31:06,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:31:06,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 14:31:07,096 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 75) no Hoare annotation was computed. [2022-07-22 14:31:07,096 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 14:31:07,096 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 70) no Hoare annotation was computed. [2022-07-22 14:31:07,096 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 54) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L895 garLoopResultBuilder]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 139) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L54-2(line 54) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2022-07-22 14:31:07,097 INFO L899 garLoopResultBuilder]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 56) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 83) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L895 garLoopResultBuilder]: At program point L122(lines 114 123) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))))) (and (= (fp ((_ extract 31 31) |ULTIMATE.start_isinf_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_isinf_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_isinf_float_~ix~0#1|)) .cse0) (= |ULTIMATE.start___ieee754_expf_#res#1| .cse0) (= |ULTIMATE.start___ieee754_expf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) (= .cse0 |ULTIMATE.start_isinf_float_~x#1|) (= currentRoundingMode roundNearestTiesToEven))) [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 58) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2022-07-22 14:31:07,098 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2022-07-22 14:31:07,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 95) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L895 garLoopResultBuilder]: At program point L116-2(lines 116 120) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))))) (and (= |ULTIMATE.start___ieee754_expf_#res#1| .cse0) (= |ULTIMATE.start___ieee754_expf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= .cse0 |ULTIMATE.start_isinf_float_~x#1|) (= currentRoundingMode roundNearestTiesToEven))) [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L902 garLoopResultBuilder]: At program point L141(lines 125 142) the Hoare annotation is: true [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 110) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2022-07-22 14:31:07,099 INFO L895 garLoopResultBuilder]: At program point L109(lines 38 111) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res#1| ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))))) (= |ULTIMATE.start___ieee754_expf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-22 14:31:07,099 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2022-07-22 14:31:07,100 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-22 14:31:07,100 INFO L899 garLoopResultBuilder]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2022-07-22 14:31:07,102 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-22 14:31:07,109 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:31:07,119 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,119 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,120 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,123 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,123 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,135 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,135 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,135 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,138 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,138 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,139 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,139 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,139 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,139 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,139 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,146 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,149 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,151 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,153 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:31:07 BoogieIcfgContainer [2022-07-22 14:31:07,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:31:07,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:31:07,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:31:07,158 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:31:07,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:31:00" (3/4) ... [2022-07-22 14:31:07,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 14:31:07,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-07-22 14:31:07,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-22 14:31:07,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 14:31:07,175 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 14:31:07,198 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-22 14:31:07,199 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-22 14:31:07,201 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE())))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE())) && \result == 1bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-22 14:31:07,222 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 14:31:07,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:31:07,223 INFO L158 Benchmark]: Toolchain (without parser) took 16346.33ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 28.4MB in the end (delta: 1.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2022-07-22 14:31:07,224 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 34.5MB in the beginning and 34.5MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:31:07,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.55ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 47.8MB in the end (delta: -18.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-22 14:31:07,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.69ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 45.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:31:07,225 INFO L158 Benchmark]: Boogie Preprocessor took 57.43ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 43.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:31:07,225 INFO L158 Benchmark]: RCFGBuilder took 9550.45ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 45.2MB in the end (delta: -1.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-07-22 14:31:07,225 INFO L158 Benchmark]: TraceAbstraction took 6328.29ms. Allocated memory is still 67.1MB. Free memory was 44.7MB in the beginning and 32.2MB in the end (delta: 12.5MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-07-22 14:31:07,226 INFO L158 Benchmark]: Witness Printer took 65.72ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 28.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 14:31:07,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 34.5MB in the beginning and 34.5MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.55ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 47.8MB in the end (delta: -18.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.69ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 45.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.43ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 43.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9550.45ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 45.2MB in the end (delta: -1.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6328.29ms. Allocated memory is still 67.1MB. Free memory was 44.7MB in the beginning and 32.2MB in the end (delta: 12.5MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 65.72ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 28.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 137]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 322 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 39 IncrementalHoareTripleChecker+Unchecked, 202 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 120 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 132 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 15 QuantifiedInterpolants, 447 SizeOfPredicates, 32 NumberOfNonLiveVariables, 434 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant [2022-07-22 14:31:07,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant [2022-07-22 14:31:07,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 116]: Loop Invariant [2022-07-22 14:31:07,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 114]: Loop Invariant [2022-07-22 14:31:07,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,248 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,248 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,256 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,256 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,256 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,256 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,257 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,257 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,257 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,257 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,257 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,257 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:31:07,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE())))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE())) && \result == 1bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()))) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-07-22 14:31:07,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE