/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/SifaC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/eca-rers2012/Problem06_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 04:40:03,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 04:40:03,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 04:40:03,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 04:40:03,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 04:40:03,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 04:40:03,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 04:40:03,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 04:40:03,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 04:40:03,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 04:40:03,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 04:40:03,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 04:40:03,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 04:40:03,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 04:40:03,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 04:40:03,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 04:40:03,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 04:40:03,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 04:40:03,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 04:40:03,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 04:40:03,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 04:40:03,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 04:40:03,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 04:40:03,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 04:40:03,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 04:40:03,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 04:40:03,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 04:40:03,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 04:40:03,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 04:40:03,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 04:40:03,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 04:40:03,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 04:40:03,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 04:40:03,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 04:40:03,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 04:40:03,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 04:40:03,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 04:40:03,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 04:40:03,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 04:40:03,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 04:40:03,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 04:40:03,821 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 [2023-03-31 04:40:03,859 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 04:40:03,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 04:40:03,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 04:40:03,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 04:40:03,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 04:40:03,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 04:40:03,861 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 04:40:03,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 04:40:03,862 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 04:40:03,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 04:40:03,862 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 04:40:03,862 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 04:40:03,862 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 04:40:03,862 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 04:40:03,863 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 04:40:03,863 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 04:40:03,863 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 04:40:03,863 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 04:40:03,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 04:40:03,864 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 04:40:03,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 04:40:03,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 04:40:03,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 04:40:03,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 04:40:03,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 04:40:03,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 04:40:03,870 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 04:40:03,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 04:40:03,870 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 04:40:03,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 04:40:03,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 04:40:03,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 04:40:03,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 04:40:03,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 04:40:03,871 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 04:40:03,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 04:40:03,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 04:40:03,873 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 04:40:03,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 04:40:03,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 04:40:03,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 04:40:03,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 04:40:04,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 04:40:04,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 04:40:04,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 04:40:04,107 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 04:40:04,107 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 04:40:04,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem06_label11.c [2023-03-31 04:40:05,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 04:40:05,836 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 04:40:05,836 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label11.c [2023-03-31 04:40:05,890 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/613efb68b/637359cf1cdc4ca6bddb6f86f7bba04b/FLAG414f23ddd [2023-03-31 04:40:05,905 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/613efb68b/637359cf1cdc4ca6bddb6f86f7bba04b [2023-03-31 04:40:05,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 04:40:05,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 04:40:05,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 04:40:05,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 04:40:05,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 04:40:05,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:40:05" (1/1) ... [2023-03-31 04:40:05,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec733b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:05, skipping insertion in model container [2023-03-31 04:40:05,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:40:05" (1/1) ... [2023-03-31 04:40:05,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 04:40:06,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 04:40:07,571 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-rers2012/Problem06_label11.c[330559,330572] [2023-03-31 04:40:07,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 04:40:07,616 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 04:40:08,363 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-rers2012/Problem06_label11.c[330559,330572] [2023-03-31 04:40:08,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 04:40:08,413 INFO L208 MainTranslator]: Completed translation [2023-03-31 04:40:08,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08 WrapperNode [2023-03-31 04:40:08,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 04:40:08,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 04:40:08,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 04:40:08,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 04:40:08,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 04:40:08,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 04:40:08,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 04:40:08,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 04:40:08,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:40:08" (1/1) ... [2023-03-31 04:40:08,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 04:40:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 04:40:08,817 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) [2023-03-31 04:40:08,832 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 [2023-03-31 04:40:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 04:40:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 04:40:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 04:40:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 04:40:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 04:40:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-31 04:40:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-31 04:40:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-03-31 04:40:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 04:40:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 04:40:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 04:40:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-31 04:40:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-31 04:40:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-03-31 04:40:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 04:40:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 04:40:09,023 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 04:40:09,026 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 04:40:14,258 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 04:40:15,338 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 04:40:15,338 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 04:40:15,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:40:15 BoogieIcfgContainer [2023-03-31 04:40:15,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 04:40:15,343 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 04:40:15,343 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 04:40:15,344 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 04:40:15,344 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:40:15" (1/1) ... [2023-03-31 04:40:15,345 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=IntervalDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 04:40:15,364 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 04:40:15,365 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 04:40:15,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 04:40:15,440 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 04:40:15,441 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 04:40:15,963 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 189 for LOIs [2023-03-31 04:40:23,836 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2023-03-31 04:40:32,583 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 137 for LOIs