./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/bary_diverge.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/bary_diverge.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 b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:32:20,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:32:20,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:32:20,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:32:20,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:32:20,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:32:20,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:32:20,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:32:20,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:32:20,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:32:20,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:32:20,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:32:20,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:32:20,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:32:20,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:32:20,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:32:20,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:32:20,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:32:20,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:32:20,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:32:20,699 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:32:20,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:32:20,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:32:20,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:32:20,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:32:20,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:32:20,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:32:20,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:32:20,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:32:20,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:32:20,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:32:20,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:32:20,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:32:20,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:32:20,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:32:20,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:32:20,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:32:20,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:32:20,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:32:20,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:32:20,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:32:20,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:32:20,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:32:20,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:32:20,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:32:20,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:32:20,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:32:20,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:32:20,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:32:20,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:32:20,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:32:20,749 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:32:20,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:32:20,750 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:32:20,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:32:20,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:32:20,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:32:20,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:32:20,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:32:20,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:32:20,752 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:32:20,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:32:20,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:32:20,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:32:20,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:32:20,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:32:20,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:32:20,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:20,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:32:20,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:32:20,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:32:20,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:32:20,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:32:20,754 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:32:20,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:32:20,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:32:20,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 [2022-07-19 13:32:20,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:32:21,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:32:21,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:32:21,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:32:21,009 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:32:21,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/bary_diverge.c [2022-07-19 13:32:21,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/035f2abf0/bca2e6e9de164ce8850720433603018f/FLAGfde735167 [2022-07-19 13:32:21,443 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:32:21,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c [2022-07-19 13:32:21,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/035f2abf0/bca2e6e9de164ce8850720433603018f/FLAGfde735167 [2022-07-19 13:32:21,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/035f2abf0/bca2e6e9de164ce8850720433603018f [2022-07-19 13:32:21,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:32:21,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:32:21,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:21,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:32:21,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:32:21,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0f1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21, skipping insertion in model container [2022-07-19 13:32:21,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:32:21,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:32:21,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-07-19 13:32:21,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:21,635 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:32:21,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-07-19 13:32:21,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:21,661 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:32:21,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21 WrapperNode [2022-07-19 13:32:21,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:21,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:21,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:32:21,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:32:21,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,694 INFO L137 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 69 [2022-07-19 13:32:21,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:21,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:32:21,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:32:21,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:32:21,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:32:21,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:32:21,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:32:21,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:32:21,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (1/1) ... [2022-07-19 13:32:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:21,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:32:21,763 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) [2022-07-19 13:32:21,788 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 [2022-07-19 13:32:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:32:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-07-19 13:32:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-07-19 13:32:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:32:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:32:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:32:21,876 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:32:21,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:32:21,975 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:32:21,980 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:32:21,981 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 13:32:21,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:21 BoogieIcfgContainer [2022-07-19 13:32:21,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:32:21,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:32:21,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:32:22,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:32:22,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:32:21" (1/3) ... [2022-07-19 13:32:22,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d10063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:22, skipping insertion in model container [2022-07-19 13:32:22,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:21" (2/3) ... [2022-07-19 13:32:22,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d10063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:22, skipping insertion in model container [2022-07-19 13:32:22,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:21" (3/3) ... [2022-07-19 13:32:22,009 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2022-07-19 13:32:22,023 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:32:22,023 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:32:22,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:32:22,081 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@44ca81f5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@375b1ed0 [2022-07-19 13:32:22,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:32:22,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 13:32:22,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-19 13:32:22,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:22,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:22,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash 372835822, now seen corresponding path program 1 times [2022-07-19 13:32:22,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:32:22,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141988188] [2022-07-19 13:32:22,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:22,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:32:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 13:32:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 13:32:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 13:32:22,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:32:22,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141988188] [2022-07-19 13:32:22,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141988188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:32:22,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:32:22,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:32:22,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731884391] [2022-07-19 13:32:22,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:32:22,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:32:22,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:32:22,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:32:22,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:32:22,308 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:32:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:32:22,325 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2022-07-19 13:32:22,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:32:22,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-07-19 13:32:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:32:22,333 INFO L225 Difference]: With dead ends: 61 [2022-07-19 13:32:22,333 INFO L226 Difference]: Without dead ends: 28 [2022-07-19 13:32:22,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:32:22,339 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:32:22,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:32:22,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-19 13:32:22,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-19 13:32:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 13:32:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-07-19 13:32:22,386 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 22 [2022-07-19 13:32:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:32:22,386 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-07-19 13:32:22,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:32:22,387 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-07-19 13:32:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-19 13:32:22,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:22,388 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:22,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:32:22,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash -920244306, now seen corresponding path program 1 times [2022-07-19 13:32:22,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:32:22,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819005839] [2022-07-19 13:32:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:22,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:32:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:32:22,424 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:32:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:32:22,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:32:22,464 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:32:22,465 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:32:22,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:32:22,469 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:32:22,472 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:32:22,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:32:22 BoogieIcfgContainer [2022-07-19 13:32:22,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:32:22,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:32:22,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:32:22,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:32:22,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:21" (3/4) ... [2022-07-19 13:32:22,500 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:32:22,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:32:22,501 INFO L158 Benchmark]: Toolchain (without parser) took 1038.43ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.7MB in the beginning and 88.9MB in the end (delta: -22.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:32:22,501 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:32:22,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.02ms. Allocated memory is still 98.6MB. Free memory was 66.5MB in the beginning and 75.1MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:32:22,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.46ms. Allocated memory is still 98.6MB. Free memory was 75.1MB in the beginning and 73.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:32:22,502 INFO L158 Benchmark]: Boogie Preprocessor took 37.25ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 72.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:32:22,503 INFO L158 Benchmark]: RCFGBuilder took 249.64ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 62.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:32:22,504 INFO L158 Benchmark]: TraceAbstraction took 512.02ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.2MB in the beginning and 88.9MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:32:22,504 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 119.5MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:32:22,507 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 98.6MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.02ms. Allocated memory is still 98.6MB. Free memory was 66.5MB in the beginning and 75.1MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.46ms. Allocated memory is still 98.6MB. Free memory was 75.1MB in the beginning and 73.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.25ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 72.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 249.64ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 62.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 512.02ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.2MB in the beginning and 88.9MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 119.5MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: 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 50. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float C1, I; [L34] static float X,Y,Z; VAL [C1=0, I=0, INIT=0, X=0, Y=0, Z=0] [L55] int i; [L57] INIT = TRUE VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L58] CALL, EXPR RANDOM_INPUT() VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, C1=0, cond=1, I=0, INIT=1, X=0, Y=0, Z=0] [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; VAL [\result=50, C1=0, I=0, INIT=1, x=50, X=0, Y=0, Z=0] [L58] RET, EXPR RANDOM_INPUT() VAL [C1=0, I=0, INIT=1, RANDOM_INPUT()=50, X=0, Y=0, Z=0] [L58] C1 = RANDOM_INPUT() [L59] CALL, EXPR RANDOM_INPUT() VAL [C1=50, I=0, INIT=1, X=0, Y=0, Z=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, C1=50, cond=1, I=0, INIT=1, X=0, Y=0, Z=0] [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; VAL [\result=49, C1=50, I=0, INIT=1, x=49, X=0, Y=0, Z=0] [L59] RET, EXPR RANDOM_INPUT() VAL [C1=50, I=0, INIT=1, RANDOM_INPUT()=49, X=0, Y=0, Z=0] [L59] I = RANDOM_INPUT() [L61] i = 0 VAL [C1=50, I=49, i=0, INIT=1, X=0, Y=0, Z=0] [L61] COND TRUE i < 3600000 [L62] CALL bary() [L36] COND TRUE C1 > 0.f [L37] Z = Y [L38] Y = X VAL [C1=50, I=49, INIT=1, X=0, Y=0, Z=0] [L41] COND TRUE INIT == TRUE [L42] X = I [L43] Y = I [L44] Z = I VAL [C1=50, I=49, INIT=1, X=49, Y=49, Z=49] [L50] CALL __VERIFIER_assert(X >= -5.f && X <= 5.f) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C1=50, cond=0, I=49, INIT=1, X=49, Y=49, Z=49] [L14] reach_error() VAL [\old(cond)=0, C1=50, cond=0, I=49, INIT=1, X=49, Y=49, Z=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 5/5 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 [2022-07-19 13:32:22,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/bary_diverge.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 b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:32:24,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:32:24,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:32:24,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:32:24,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:32:24,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:32:24,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:32:24,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:32:24,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:32:24,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:32:24,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:32:24,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:32:24,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:32:24,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:32:24,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:32:24,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:32:24,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:32:24,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:32:24,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:32:24,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:32:24,481 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:32:24,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:32:24,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:32:24,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:32:24,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:32:24,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:32:24,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:32:24,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:32:24,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:32:24,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:32:24,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:32:24,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:32:24,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:32:24,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:32:24,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:32:24,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:32:24,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:32:24,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:32:24,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:32:24,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:32:24,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:32:24,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:32:24,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:32:24,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:32:24,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:32:24,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:32:24,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:32:24,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:32:24,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:32:24,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:32:24,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:32:24,538 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:32:24,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:32:24,539 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:32:24,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:32:24,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:32:24,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:32:24,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:32:24,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:32:24,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:32:24,547 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:32:24,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:32:24,548 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:32:24,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:32:24,548 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:32:24,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:32:24,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:32:24,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:32:24,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:32:24,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:24,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:32:24,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:32:24,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:32:24,550 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:32:24,550 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:32:24,550 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:32:24,550 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:32:24,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:32:24,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:32:24,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 [2022-07-19 13:32:24,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:32:24,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:32:24,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:32:24,859 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:32:24,859 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:32:24,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/bary_diverge.c [2022-07-19 13:32:24,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8f479f2/d8f0e3b9f6f0405da7718b677b80d6af/FLAG7ac00372f [2022-07-19 13:32:25,323 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:32:25,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c [2022-07-19 13:32:25,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8f479f2/d8f0e3b9f6f0405da7718b677b80d6af/FLAG7ac00372f [2022-07-19 13:32:25,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8f479f2/d8f0e3b9f6f0405da7718b677b80d6af [2022-07-19 13:32:25,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:32:25,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:32:25,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:25,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:32:25,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:32:25,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:25,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7c9127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25, skipping insertion in model container [2022-07-19 13:32:25,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:25,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:32:25,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:32:25,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-07-19 13:32:25,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:25,892 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:32:25,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2022-07-19 13:32:25,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:32:25,974 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:32:25,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25 WrapperNode [2022-07-19 13:32:25,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:32:25,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:25,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:32:25,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:32:25,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:25,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,004 INFO L137 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70 [2022-07-19 13:32:26,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:32:26,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:32:26,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:32:26,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:32:26,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:32:26,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:32:26,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:32:26,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:32:26,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (1/1) ... [2022-07-19 13:32:26,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:32:26,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:32:26,056 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) [2022-07-19 13:32:26,063 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 [2022-07-19 13:32:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:32:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-07-19 13:32:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-07-19 13:32:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:32:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:32:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:32:26,177 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:32:26,178 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:32:26,637 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:32:26,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:32:26,643 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 13:32:26,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:26 BoogieIcfgContainer [2022-07-19 13:32:26,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:32:26,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:32:26,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:32:26,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:32:26,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:32:25" (1/3) ... [2022-07-19 13:32:26,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43dd36ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:26, skipping insertion in model container [2022-07-19 13:32:26,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:32:25" (2/3) ... [2022-07-19 13:32:26,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43dd36ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:32:26, skipping insertion in model container [2022-07-19 13:32:26,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:32:26" (3/3) ... [2022-07-19 13:32:26,650 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2022-07-19 13:32:26,666 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:32:26,667 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:32:26,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:32:26,707 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@13349b96, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4eaa4573 [2022-07-19 13:32:26,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:32:26,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 13:32:26,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-19 13:32:26,717 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:26,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:26,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 372835822, now seen corresponding path program 1 times [2022-07-19 13:32:26,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:32:26,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157570763] [2022-07-19 13:32:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:26,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:32:26,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:32:26,741 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) [2022-07-19 13:32:26,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:32:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:26,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:32:26,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:32:26,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 13:32:26,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:32:26,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:32:26,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157570763] [2022-07-19 13:32:26,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157570763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:32:26,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:32:26,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:32:26,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637415067] [2022-07-19 13:32:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:32:26,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:32:26,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:32:26,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:32:26,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:32:26,865 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:32:26,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:32:26,885 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2022-07-19 13:32:26,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:32:26,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-07-19 13:32:26,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:32:26,894 INFO L225 Difference]: With dead ends: 61 [2022-07-19 13:32:26,894 INFO L226 Difference]: Without dead ends: 28 [2022-07-19 13:32:26,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:32:26,899 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:32:26,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:32:26,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-19 13:32:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-19 13:32:26,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 13:32:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-07-19 13:32:26,934 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 22 [2022-07-19 13:32:26,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:32:26,934 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-07-19 13:32:26,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:32:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-07-19 13:32:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-19 13:32:26,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:26,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:26,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 13:32:27,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:32:27,144 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash -920244306, now seen corresponding path program 1 times [2022-07-19 13:32:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:32:27,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973780528] [2022-07-19 13:32:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:27,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:32:27,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:32:27,147 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) [2022-07-19 13:32:27,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 13:32:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:27,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 13:32:27,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:32:27,624 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-19 13:32:27,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:32:27,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:32:27,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973780528] [2022-07-19 13:32:27,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973780528] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:32:27,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:32:27,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 13:32:27,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642356647] [2022-07-19 13:32:27,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:32:27,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 13:32:27,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:32:27,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 13:32:27,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 13:32:27,629 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 13:32:30,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:32:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:32:30,785 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2022-07-19 13:32:30,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 13:32:30,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-07-19 13:32:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:32:30,788 INFO L225 Difference]: With dead ends: 54 [2022-07-19 13:32:30,788 INFO L226 Difference]: Without dead ends: 52 [2022-07-19 13:32:30,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-07-19 13:32:30,790 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 56 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 13:32:30,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 190 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 13:32:30,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-19 13:32:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2022-07-19 13:32:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-19 13:32:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2022-07-19 13:32:30,804 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 22 [2022-07-19 13:32:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:32:30,805 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-07-19 13:32:30,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 13:32:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2022-07-19 13:32:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-19 13:32:30,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:30,806 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:30,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-19 13:32:31,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:32:31,016 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:31,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:31,017 INFO L85 PathProgramCache]: Analyzing trace with hash -920184724, now seen corresponding path program 1 times [2022-07-19 13:32:31,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:32:31,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007344101] [2022-07-19 13:32:31,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:31,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:32:31,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:32:31,019 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) [2022-07-19 13:32:31,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 13:32:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:31,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 13:32:31,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:32:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 13:32:31,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:32:31,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:32:31,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007344101] [2022-07-19 13:32:31,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007344101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:32:31,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:32:31,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:32:31,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455945092] [2022-07-19 13:32:31,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:32:31,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:32:31,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:32:31,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:32:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:32:31,256 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 13:32:33,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:32:33,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:32:33,357 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2022-07-19 13:32:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:32:33,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-07-19 13:32:33,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:32:33,386 INFO L225 Difference]: With dead ends: 85 [2022-07-19 13:32:33,386 INFO L226 Difference]: Without dead ends: 63 [2022-07-19 13:32:33,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:32:33,388 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:32:33,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 13:32:33,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-19 13:32:33,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2022-07-19 13:32:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.108695652173913) internal successors, (51), 48 states have internal predecessors, (51), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-19 13:32:33,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-07-19 13:32:33,399 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 22 [2022-07-19 13:32:33,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:32:33,399 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-07-19 13:32:33,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 13:32:33,399 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-07-19 13:32:33,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-19 13:32:33,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:33,401 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:33,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 13:32:33,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:32:33,607 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:33,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:33,608 INFO L85 PathProgramCache]: Analyzing trace with hash -961441789, now seen corresponding path program 1 times [2022-07-19 13:32:33,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:32:33,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24317854] [2022-07-19 13:32:33,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:33,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:32:33,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:32:33,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:32:33,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 13:32:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:33,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 13:32:33,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:32:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 13:32:34,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:32:34,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:32:34,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24317854] [2022-07-19 13:32:34,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24317854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:32:34,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:32:34,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 13:32:34,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458919898] [2022-07-19 13:32:34,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:32:34,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 13:32:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:32:34,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 13:32:34,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 13:32:34,082 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-19 13:32:36,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:32:37,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:32:37,105 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2022-07-19 13:32:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 13:32:37,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-07-19 13:32:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:32:37,107 INFO L225 Difference]: With dead ends: 83 [2022-07-19 13:32:37,107 INFO L226 Difference]: Without dead ends: 81 [2022-07-19 13:32:37,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-07-19 13:32:37,108 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 13:32:37,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 217 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 13:32:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-07-19 13:32:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2022-07-19 13:32:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 43 states have internal predecessors, (46), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-19 13:32:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-07-19 13:32:37,117 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 52 [2022-07-19 13:32:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:32:37,117 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-07-19 13:32:37,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-19 13:32:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-07-19 13:32:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-19 13:32:37,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:32:37,119 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:32:37,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 13:32:37,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:32:37,330 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:32:37,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:32:37,330 INFO L85 PathProgramCache]: Analyzing trace with hash -961382207, now seen corresponding path program 1 times [2022-07-19 13:32:37,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:32:37,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092236855] [2022-07-19 13:32:37,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:32:37,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:32:37,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:32:37,332 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:32:37,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 13:32:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:32:37,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 13:32:37,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:33:12,567 WARN L233 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 13:34:13,192 WARN L855 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (let ((.cse2 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (let ((.cse0 (fp.leq .cse2 .cse3)) (.cse1 (fp.geq .cse2 (fp.neg .cse3)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse0) (not .cse1))) (and .cse0 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1)))) (fp.leq ~Z~0 .cse4) (fp.geq ~Z~0 (fp.neg .cse4))))) is different from true [2022-07-19 13:34:52,779 WARN L833 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ~Z~0 .cse0) (fp.geq ~Z~0 (fp.neg .cse0)) (let ((.cse1 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2)))))))) is different from false [2022-07-19 13:34:54,800 WARN L855 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ~Z~0 .cse0) (fp.geq ~Z~0 (fp.neg .cse0)) (let ((.cse1 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2)))))))) is different from true [2022-07-19 13:34:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 1 not checked. [2022-07-19 13:34:54,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:35:08,952 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2022-07-19 13:35:10,981 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2022-07-19 13:35:21,186 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2022-07-19 13:35:23,221 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true