./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/floats-cbmc-regression/float-no-simp6.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 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:22:17,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:22:17,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:22:17,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:22:17,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:22:17,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:22:17,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:22:17,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:22:17,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:22:17,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:22:17,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:22:17,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:22:17,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:22:17,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:22:17,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:22:17,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:22:17,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:22:17,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:22:17,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:22:17,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:22:17,708 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:22:17,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:22:17,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:22:17,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:22:17,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:22:17,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:22:17,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:22:17,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:22:17,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:22:17,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:22:17,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:22:17,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:22:17,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:22:17,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:22:17,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:22:17,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:22:17,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:22:17,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:22:17,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:22:17,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:22:17,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:22:17,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:22:17,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:22:17,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:22:17,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:22:17,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:22:17,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:22:17,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:22:17,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:22:17,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:22:17,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:22:17,757 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:22:17,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:22:17,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:22:17,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:22:17,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:22:17,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:22:17,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:22:17,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:22:17,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:22:17,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:22:17,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:22:17,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:22:17,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:22:17,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:22:17,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:22:17,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:22:17,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:17,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:22:17,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:22:17,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:22:17,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:22:17,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:22:17,763 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:22:17,763 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:22:17,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:22:17,764 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 [2022-07-12 02:22:17,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:22:18,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:22:18,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:22:18,003 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:22:18,003 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:22:18,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-07-12 02:22:18,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3796986/0ee75f529c2d4a9092ec8d142ff6629a/FLAGde0f540f5 [2022-07-12 02:22:18,474 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:22:18,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-07-12 02:22:18,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3796986/0ee75f529c2d4a9092ec8d142ff6629a/FLAGde0f540f5 [2022-07-12 02:22:18,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3796986/0ee75f529c2d4a9092ec8d142ff6629a [2022-07-12 02:22:18,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:22:18,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:22:18,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:18,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:22:18,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:22:18,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30aac52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18, skipping insertion in model container [2022-07-12 02:22:18,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:22:18,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:22:18,655 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-07-12 02:22:18,664 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-07-12 02:22:18,667 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-07-12 02:22:18,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:18,675 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:22:18,692 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-07-12 02:22:18,695 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-07-12 02:22:18,697 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-07-12 02:22:18,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:18,715 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:22:18,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18 WrapperNode [2022-07-12 02:22:18,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:18,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:18,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:22:18,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:22:18,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,743 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-12 02:22:18,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:18,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:22:18,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:22:18,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:22:18,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:22:18,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:22:18,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:22:18,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:22:18,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (1/1) ... [2022-07-12 02:22:18,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:18,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:22:18,784 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) [2022-07-12 02:22:18,785 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 [2022-07-12 02:22:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:22:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:22:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:22:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:22:18,851 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:22:18,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:22:18,924 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:22:18,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:22:18,932 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:22:18,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:18 BoogieIcfgContainer [2022-07-12 02:22:18,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:22:18,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:22:18,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:22:18,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:22:18,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:22:18" (1/3) ... [2022-07-12 02:22:18,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15679911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:18, skipping insertion in model container [2022-07-12 02:22:18,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:18" (2/3) ... [2022-07-12 02:22:18,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15679911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:18, skipping insertion in model container [2022-07-12 02:22:18,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:18" (3/3) ... [2022-07-12 02:22:18,942 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2022-07-12 02:22:18,955 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:22:18,955 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 02:22:19,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:22:19,013 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@27650fb3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c0a1a93 [2022-07-12 02:22:19,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 02:22:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-07-12 02:22:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-12 02:22:19,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:22:19,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-12 02:22:19,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:22:19,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:22:19,046 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-12 02:22:19,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:22:19,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517830413] [2022-07-12 02:22:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:22:19,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:22:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:22:19,140 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:22:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:22:19,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:22:19,176 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:22:19,177 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-12 02:22:19,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-07-12 02:22:19,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-07-12 02:22:19,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:22:19,184 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 02:22:19,187 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:22:19,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:22:19 BoogieIcfgContainer [2022-07-12 02:22:19,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:22:19,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:22:19,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:22:19,206 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:22:19,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:18" (3/4) ... [2022-07-12 02:22:19,210 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:22:19,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:22:19,211 INFO L158 Benchmark]: Toolchain (without parser) took 713.49ms. Allocated memory is still 115.3MB. Free memory was 86.3MB in the beginning and 64.0MB in the end (delta: 22.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-07-12 02:22:19,212 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:19,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.63ms. Allocated memory is still 115.3MB. Free memory was 86.3MB in the beginning and 88.4MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 02:22:19,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.53ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:22:19,218 INFO L158 Benchmark]: Boogie Preprocessor took 13.73ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:19,218 INFO L158 Benchmark]: RCFGBuilder took 174.67ms. Allocated memory is still 115.3MB. Free memory was 86.0MB in the beginning and 77.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:22:19,219 INFO L158 Benchmark]: TraceAbstraction took 267.68ms. Allocated memory is still 115.3MB. Free memory was 77.1MB in the beginning and 64.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-12 02:22:19,220 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 115.3MB. Free memory was 64.3MB in the beginning and 64.0MB in the end (delta: 303.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:19,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.63ms. Allocated memory is still 115.3MB. Free memory was 86.3MB in the beginning and 88.4MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.53ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.73ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 174.67ms. Allocated memory is still 115.3MB. Free memory was 86.0MB in the beginning and 77.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 267.68ms. Allocated memory is still 115.3MB. Free memory was 77.1MB in the beginning and 64.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 115.3MB. Free memory was 64.3MB in the beginning and 64.0MB in the end (delta: 303.0kB). 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: 25]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 25, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L49] CALL multiply() [L20] float f1=0x1.000000p-1f; [L21] float f2=0x1.fffffep-126f; [L23] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L25] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L25] reach_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - UnprovableResult [Line: 35]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 02:22:19,270 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/floats-cbmc-regression/float-no-simp6.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 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:22:21,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:22:21,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:22:21,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:22:21,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:22:21,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:22:21,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:22:21,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:22:21,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:22:21,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:22:21,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:22:21,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:22:21,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:22:21,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:22:21,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:22:21,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:22:21,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:22:21,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:22:21,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:22:21,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:22:21,138 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:22:21,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:22:21,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:22:21,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:22:21,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:22:21,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:22:21,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:22:21,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:22:21,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:22:21,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:22:21,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:22:21,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:22:21,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:22:21,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:22:21,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:22:21,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:22:21,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:22:21,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:22:21,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:22:21,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:22:21,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:22:21,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:22:21,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:22:21,189 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:22:21,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:22:21,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:22:21,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:22:21,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:22:21,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:22:21,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:22:21,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:22:21,193 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:22:21,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:22:21,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:22:21,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:22:21,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:22:21,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:22:21,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:22:21,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:22:21,195 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:22:21,195 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:22:21,195 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:22:21,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:22:21,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:22:21,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:22:21,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:22:21,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:22:21,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:22:21,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:22:21,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:21,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:22:21,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:22:21,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:22:21,197 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:22:21,198 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:22:21,198 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:22:21,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:22:21,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:22:21,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:22:21,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 [2022-07-12 02:22:21,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:22:21,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:22:21,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:22:21,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:22:21,513 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:22:21,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-07-12 02:22:21,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f1cc79f/badf04f274c1485989574be13a96877a/FLAGb8145ca3e [2022-07-12 02:22:21,973 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:22:21,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-07-12 02:22:21,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f1cc79f/badf04f274c1485989574be13a96877a/FLAGb8145ca3e [2022-07-12 02:22:22,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f1cc79f/badf04f274c1485989574be13a96877a [2022-07-12 02:22:22,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:22:22,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:22:22,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:22,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:22:22,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:22:22,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4577740d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22, skipping insertion in model container [2022-07-12 02:22:22,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:22:22,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:22:22,608 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-07-12 02:22:22,616 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-07-12 02:22:22,632 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-07-12 02:22:22,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:22,651 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:22:22,667 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-07-12 02:22:22,681 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-07-12 02:22:22,686 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-07-12 02:22:22,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:22:22,707 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:22:22,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22 WrapperNode [2022-07-12 02:22:22,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:22:22,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:22,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:22:22,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:22:22,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,754 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-12 02:22:22,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:22:22,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:22:22,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:22:22,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:22:22,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:22:22,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:22:22,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:22:22,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:22:22,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (1/1) ... [2022-07-12 02:22:22,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:22:22,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:22:22,825 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) [2022-07-12 02:22:22,848 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 [2022-07-12 02:22:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:22:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:22:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:22:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:22:22,924 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:22:22,926 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:22:23,532 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:22:23,537 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:22:23,537 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:22:23,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:23 BoogieIcfgContainer [2022-07-12 02:22:23,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:22:23,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:22:23,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:22:23,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:22:23,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:22:22" (1/3) ... [2022-07-12 02:22:23,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a1bebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:23, skipping insertion in model container [2022-07-12 02:22:23,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:22:22" (2/3) ... [2022-07-12 02:22:23,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a1bebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:22:23, skipping insertion in model container [2022-07-12 02:22:23,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:23" (3/3) ... [2022-07-12 02:22:23,545 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2022-07-12 02:22:23,556 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:22:23,556 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 02:22:23,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:22:23,609 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@2524be2b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c19d693 [2022-07-12 02:22:23,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 02:22:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-07-12 02:22:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-12 02:22:23,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:22:23,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-12 02:22:23,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:22:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:22:23,659 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-12 02:22:23,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:22:23,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624007455] [2022-07-12 02:22:23,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:22:23,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:22:23,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:22:23,684 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) [2022-07-12 02:22:23,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:22:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:22:23,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 02:22:23,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:22:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:22:23,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:22:23,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:22:23,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624007455] [2022-07-12 02:22:23,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624007455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:22:23,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:22:23,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 02:22:23,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101006740] [2022-07-12 02:22:23,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:22:23,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:22:23,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:22:23,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:22:23,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:22:23,955 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-12 02:22:24,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:22:24,293 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-07-12 02:22:24,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:22:24,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-07-12 02:22:24,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:22:24,301 INFO L225 Difference]: With dead ends: 29 [2022-07-12 02:22:24,301 INFO L226 Difference]: Without dead ends: 11 [2022-07-12 02:22:24,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:22:24,308 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 02:22:24,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 02:22:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-07-12 02:22:24,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-07-12 02:22:24,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 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) [2022-07-12 02:22:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-07-12 02:22:24,328 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4 [2022-07-12 02:22:24,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:22:24,328 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-07-12 02:22:24,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-12 02:22:24,329 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-07-12 02:22:24,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-12 02:22:24,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:22:24,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-12 02:22:24,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 02:22:24,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:22:24,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:22:24,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:22:24,536 INFO L85 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2022-07-12 02:22:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:22:24,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105310466] [2022-07-12 02:22:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:22:24,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:22:24,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:22:24,541 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) [2022-07-12 02:22:24,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 02:22:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:22:24,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 02:22:24,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:22:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:22:24,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:22:24,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:22:24,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105310466] [2022-07-12 02:22:24,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105310466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:22:24,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:22:24,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 02:22:24,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221259070] [2022-07-12 02:22:24,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:22:24,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:22:24,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:22:24,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:22:24,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:22:24,784 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-12 02:22:25,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:22:25,043 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-07-12 02:22:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:22:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-07-12 02:22:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:22:25,045 INFO L225 Difference]: With dead ends: 11 [2022-07-12 02:22:25,045 INFO L226 Difference]: Without dead ends: 9 [2022-07-12 02:22:25,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:22:25,046 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 02:22:25,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 02:22:25,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-12 02:22:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-12 02:22:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-07-12 02:22:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-12 02:22:25,050 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2022-07-12 02:22:25,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:22:25,050 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-12 02:22:25,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-12 02:22:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-12 02:22:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:22:25,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:22:25,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:22:25,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 02:22:25,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:22:25,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:22:25,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:22:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2022-07-12 02:22:25,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:22:25,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299681533] [2022-07-12 02:22:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:22:25,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:22:25,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:22:25,270 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) [2022-07-12 02:22:25,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 02:22:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:22:25,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 02:22:25,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:22:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:22:25,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:22:25,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:22:25,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299681533] [2022-07-12 02:22:25,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299681533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:22:25,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:22:25,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 02:22:25,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450433130] [2022-07-12 02:22:25,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:22:25,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:22:25,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:22:25,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:22:25,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:22:25,567 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-12 02:22:26,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:22:26,048 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-07-12 02:22:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:22:26,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-07-12 02:22:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:22:26,055 INFO L225 Difference]: With dead ends: 9 [2022-07-12 02:22:26,055 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 02:22:26,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:22:26,056 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 02:22:26,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 02:22:26,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 02:22:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 02:22:26,058 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) [2022-07-12 02:22:26,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 02:22:26,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-07-12 02:22:26,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:22:26,058 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 02:22:26,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-12 02:22:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 02:22:26,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 02:22:26,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-12 02:22:26,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-07-12 02:22:26,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-07-12 02:22:26,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 02:22:26,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:22:26,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 02:22:26,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 02:22:26,271 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-07-12 02:22:26,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2022-07-12 02:22:26,271 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-07-12 02:22:26,272 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-12 02:22:26,272 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-07-12 02:22:26,272 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 45) no Hoare annotation was computed. [2022-07-12 02:22:26,272 INFO L899 garLoopResultBuilder]: For program point L5(lines 5 26) no Hoare annotation was computed. [2022-07-12 02:22:26,272 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 02:22:26,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 02:22:26,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 02:22:26,273 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 36) no Hoare annotation was computed. [2022-07-12 02:22:26,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2022-07-12 02:22:26,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2022-07-12 02:22:26,273 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 52) no Hoare annotation was computed. [2022-07-12 02:22:26,274 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-12 02:22:26,274 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-07-12 02:22:26,276 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-12 02:22:26,278 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:22:26,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:22:26 BoogieIcfgContainer [2022-07-12 02:22:26,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:22:26,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:22:26,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:22:26,282 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:22:26,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:22:23" (3/4) ... [2022-07-12 02:22:26,285 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 02:22:26,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-12 02:22:26,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 02:22:26,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 02:22:26,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 02:22:26,311 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:22:26,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:22:26,312 INFO L158 Benchmark]: Toolchain (without parser) took 3877.64ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 44.0MB in the beginning and 56.0MB in the end (delta: -12.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-12 02:22:26,313 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 46.0MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:26,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.39ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 48.5MB in the end (delta: -4.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-07-12 02:22:26,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.32ms. Allocated memory is still 65.0MB. Free memory was 48.5MB in the beginning and 47.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:22:26,314 INFO L158 Benchmark]: Boogie Preprocessor took 38.55ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 46.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:26,314 INFO L158 Benchmark]: RCFGBuilder took 743.01ms. Allocated memory is still 65.0MB. Free memory was 45.9MB in the beginning and 37.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:22:26,315 INFO L158 Benchmark]: TraceAbstraction took 2741.25ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 58.1MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:22:26,315 INFO L158 Benchmark]: Witness Printer took 29.99ms. Allocated memory is still 81.8MB. Free memory was 58.1MB in the beginning and 56.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:22:26,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 46.0MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.39ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 48.5MB in the end (delta: -4.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.32ms. Allocated memory is still 65.0MB. Free memory was 48.5MB in the beginning and 47.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.55ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 46.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 743.01ms. Allocated memory is still 65.0MB. Free memory was 45.9MB in the beginning and 37.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2741.25ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 58.1MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.99ms. Allocated memory is still 81.8MB. Free memory was 58.1MB in the beginning and 56.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 44]: 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, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 11 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 14 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-12 02:22:26,368 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