/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 OctagonDomain -i ../sv-benchmarks/c/eca-rers2012/Problem12_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 10:25:28,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 10:25:28,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 10:25:28,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 10:25:28,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 10:25:28,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 10:25:28,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 10:25:28,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 10:25:28,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 10:25:28,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 10:25:28,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 10:25:28,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 10:25:28,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 10:25:28,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 10:25:28,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 10:25:28,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 10:25:28,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 10:25:28,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 10:25:28,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 10:25:28,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 10:25:28,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 10:25:28,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 10:25:28,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 10:25:28,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 10:25:28,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 10:25:28,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 10:25:28,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 10:25:28,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 10:25:28,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 10:25:28,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 10:25:28,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 10:25:28,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 10:25:28,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 10:25:28,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 10:25:28,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 10:25:28,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 10:25:28,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 10:25:28,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 10:25:28,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 10:25:28,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 10:25:28,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 10:25:28,993 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 10:25:29,015 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 10:25:29,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 10:25:29,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 10:25:29,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 10:25:29,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 10:25:29,017 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 10:25:29,017 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 10:25:29,017 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 10:25:29,017 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 10:25:29,017 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 10:25:29,018 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 10:25:29,018 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 10:25:29,018 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 10:25:29,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 10:25:29,018 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 10:25:29,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 10:25:29,019 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 10:25:29,019 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 10:25:29,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 10:25:29,019 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 10:25:29,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 10:25:29,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 10:25:29,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 10:25:29,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 10:25:29,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 10:25:29,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 10:25:29,020 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 10:25:29,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 10:25:29,020 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 10:25:29,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 10:25:29,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 10:25:29,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 10:25:29,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 10:25:29,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-03-31 10:25:29,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 10:25:29,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 10:25:29,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 10:25:29,245 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 10:25:29,245 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 10:25:29,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label56.c [2023-03-31 10:25:30,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 10:25:30,697 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 10:25:30,698 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label56.c [2023-03-31 10:25:30,723 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2bf16d49/4f2bd771d4fd4b1287fd5b048df66da8/FLAG819834691 [2023-03-31 10:25:30,735 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2bf16d49/4f2bd771d4fd4b1287fd5b048df66da8 [2023-03-31 10:25:30,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 10:25:30,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 10:25:30,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 10:25:30,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 10:25:30,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 10:25:30,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:25:30" (1/1) ... [2023-03-31 10:25:30,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5a8c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:30, skipping insertion in model container [2023-03-31 10:25:30,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:25:30" (1/1) ... [2023-03-31 10:25:30,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 10:25:30,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 10:25:31,092 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/Problem12_label56.c[6959,6972] [2023-03-31 10:25:31,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 10:25:31,726 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 10:25:31,749 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/Problem12_label56.c[6959,6972] [2023-03-31 10:25:32,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 10:25:32,046 INFO L208 MainTranslator]: Completed translation [2023-03-31 10:25:32,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32 WrapperNode [2023-03-31 10:25:32,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 10:25:32,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 10:25:32,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 10:25:32,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 10:25:32,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,205 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 10:25:32,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 10:25:32,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 10:25:32,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 10:25:32,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:25:32" (1/1) ... [2023-03-31 10:25:32,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 10:25:32,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 10:25:32,292 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 10:25:32,299 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 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-31 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-31 10:25:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 10:25:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 10:25:32,367 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 10:25:32,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 10:25:35,351 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 10:25:35,787 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 10:25:35,787 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 10:25:35,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:25:35 BoogieIcfgContainer [2023-03-31 10:25:35,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 10:25:35,792 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 10:25:35,792 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 10:25:35,792 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 10:25:35,793 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:25:35" (1/1) ... [2023-03-31 10:25:35,793 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=OctagonDomain ♦ 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 10:25:35,813 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 10:25:35,813 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 10:25:35,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 10:25:35,823 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 10:25:35,823 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 10:25:35,945 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 77 for LOIs [2023-03-31 10:25:36,526 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2023-03-31 10:25:40,895 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 84745 conjuctions. This might take some time... [2023-03-31 10:25:46,036 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 689 conjuctions. [2023-03-31 10:25:49,223 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2023-03-31 10:25:49,247 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 8199 conjuctions. This might take some time... [2023-03-31 10:25:49,425 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 311 conjuctions. [2023-03-31 10:26:05,092 WARN L223 SmtUtils]: Spent 13.37s on a formula simplification that was a NOOP. DAG size: 1065 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)