/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/eca-programs/Problem101_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 20:48:57,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 20:48:57,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 20:48:57,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 20:48:57,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 20:48:57,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 20:48:57,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 20:48:57,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 20:48:57,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 20:48:57,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 20:48:57,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 20:48:57,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 20:48:57,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 20:48:57,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 20:48:57,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 20:48:57,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 20:48:57,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 20:48:57,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 20:48:57,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 20:48:57,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 20:48:57,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 20:48:57,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 20:48:57,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 20:48:57,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 20:48:57,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 20:48:57,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 20:48:57,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 20:48:57,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 20:48:57,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 20:48:57,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 20:48:57,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 20:48:57,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 20:48:57,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 20:48:57,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 20:48:57,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 20:48:57,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 20:48:57,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 20:48:57,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 20:48:57,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 20:48:57,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 20:48:57,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 20:48:57,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 20:48:57,751 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 20:48:57,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 20:48:57,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 20:48:57,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 20:48:57,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 20:48:57,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 20:48:57,753 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 20:48:57,753 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 20:48:57,753 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 20:48:57,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 20:48:57,754 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 20:48:57,754 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 20:48:57,755 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 20:48:57,755 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 20:48:57,755 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 20:48:57,755 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 20:48:57,755 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 20:48:57,755 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 20:48:57,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 20:48:57,756 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 20:48:57,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 20:48:57,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 20:48:57,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 20:48:57,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 20:48:57,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 20:48:57,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 20:48:57,757 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 20:48:57,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 20:48:57,758 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 20:48:57,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 20:48:57,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 20:48:57,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 20:48:57,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:48:57,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 20:48:57,759 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 20:48:57,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 20:48:57,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 20:48:57,759 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 20:48:57,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 20:48:57,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 20:48:57,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 20:48:57,760 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 20:48:57,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 20:48:58,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 20:48:58,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 20:48:58,011 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 20:48:58,011 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 20:48:58,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label08.c [2023-04-02 20:48:59,137 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 20:49:00,708 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 20:49:00,708 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label08.c [2023-04-02 20:49:00,839 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab744fea7/8511c2ade61948a7acb4ae9c8e3864f6/FLAG9c4594121 [2023-04-02 20:49:00,850 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab744fea7/8511c2ade61948a7acb4ae9c8e3864f6 [2023-04-02 20:49:00,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 20:49:00,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 20:49:00,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 20:49:00,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 20:49:00,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 20:49:00,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:49:00" (1/1) ... [2023-04-02 20:49:00,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bcb2f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:00, skipping insertion in model container [2023-04-02 20:49:00,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:49:00" (1/1) ... [2023-04-02 20:49:00,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 20:49:01,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 20:49:08,734 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label08.c[2767137,2767150] [2023-04-02 20:49:08,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:49:08,796 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 20:49:13,106 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label08.c[2767137,2767150] [2023-04-02 20:49:13,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:49:13,964 INFO L208 MainTranslator]: Completed translation [2023-04-02 20:49:13,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13 WrapperNode [2023-04-02 20:49:13,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 20:49:13,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 20:49:13,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 20:49:13,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 20:49:13,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:13,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:14,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:14,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:15,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:16,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:16,212 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:16,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:16,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 20:49:16,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 20:49:16,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 20:49:16,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 20:49:16,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (1/1) ... [2023-04-02 20:49:16,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:49:16,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 20:49:17,001 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) [2023-04-02 20:49:17,008 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 [2023-04-02 20:49:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 20:49:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 20:49:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 20:49:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 20:49:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 20:49:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 20:49:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 20:49:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 20:49:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 20:49:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 20:49:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 20:49:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 20:49:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 20:49:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 20:49:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 20:49:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 20:49:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 20:49:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 20:49:17,172 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 20:49:17,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 20:49:49,630 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 20:49:50,674 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 20:49:50,674 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 20:49:50,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:49:50 BoogieIcfgContainer [2023-04-02 20:49:50,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 20:49:50,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 20:49:50,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 20:49:50,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 20:49:50,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:49:00" (1/3) ... [2023-04-02 20:49:50,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2ef9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:49:50, skipping insertion in model container [2023-04-02 20:49:50,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:13" (2/3) ... [2023-04-02 20:49:50,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2ef9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:49:50, skipping insertion in model container [2023-04-02 20:49:50,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:49:50" (3/3) ... [2023-04-02 20:49:50,693 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label08.c [2023-04-02 20:49:50,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 20:49:50,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 20:49:50,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 20:49:50,897 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=FINITE_AUTOMATA, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@375c7e25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 20:49:50,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 20:49:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 10325 states, 10227 states have (on average 1.9860174049085753) internal successors, (20311), 10228 states have internal predecessors, (20311), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-04-02 20:49:51,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 20:49:51,678 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 20:49:51,685 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 20:49:51,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 20:49:51,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 20:49:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1298948329, now seen corresponding path program 1 times [2023-04-02 20:49:51,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 20:49:51,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510024950] [2023-04-02 20:49:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 20:49:51,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 20:49:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 20:52:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 20:52:56,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 20:52:56,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510024950] [2023-04-02 20:52:56,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510024950] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 20:52:56,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 20:52:56,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 20:52:56,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240852728] [2023-04-02 20:52:56,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 20:52:56,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 20:52:56,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 20:52:56,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 20:52:56,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 20:52:56,168 INFO L87 Difference]: Start difference. First operand has 10325 states, 10227 states have (on average 1.9860174049085753) internal successors, (20311), 10228 states have internal predecessors, (20311), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 3377.3333333333335) internal successors, (10132), 2 states have internal predecessors, (10132), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)