/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain IntervalDomain -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.sifa-quantifier-058fc93 [2023-03-22 15:21:12,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-22 15:21:12,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-22 15:21:12,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-22 15:21:12,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-22 15:21:12,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-22 15:21:12,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-22 15:21:12,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-22 15:21:12,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-22 15:21:12,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-22 15:21:12,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-22 15:21:12,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-22 15:21:12,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-22 15:21:12,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-22 15:21:12,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-22 15:21:12,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-22 15:21:12,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-22 15:21:12,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-22 15:21:12,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-22 15:21:12,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-22 15:21:12,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-22 15:21:12,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-22 15:21:12,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-22 15:21:12,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-22 15:21:12,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-22 15:21:12,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-22 15:21:12,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-22 15:21:12,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-22 15:21:12,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-22 15:21:12,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-22 15:21:12,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-22 15:21:12,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-22 15:21:12,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-22 15:21:12,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-22 15:21:12,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-22 15:21:12,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-22 15:21:12,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-22 15:21:12,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-22 15:21:12,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-22 15:21:12,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-22 15:21:12,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-22 15:21:12,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-22 15:21:12,444 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-22 15:21:12,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-22 15:21:12,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-22 15:21:12,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-22 15:21:12,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-22 15:21:12,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-22 15:21:12,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-22 15:21:12,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-22 15:21:12,447 INFO L138 SettingsManager]: * Use SBE=true [2023-03-22 15:21:12,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-22 15:21:12,447 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-22 15:21:12,448 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-22 15:21:12,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-22 15:21:12,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-22 15:21:12,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-22 15:21:12,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-22 15:21:12,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 15:21:12,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-22 15:21:12,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-22 15:21:12,450 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-22 15:21:12,451 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-22 15:21:12,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-22 15:21:12,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-22 15:21:12,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-22 15:21:12,683 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-22 15:21:12,683 INFO L275 PluginConnector]: CDTParser initialized [2023-03-22 15:21:12,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2023-03-22 15:21:13,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-22 15:21:13,774 INFO L351 CDTParser]: Found 1 translation units. [2023-03-22 15:21:13,774 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2023-03-22 15:21:13,791 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dac7bff/82778c96e8a24a02bfab0b88c4988da5/FLAG91a0a4170 [2023-03-22 15:21:13,800 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dac7bff/82778c96e8a24a02bfab0b88c4988da5 [2023-03-22 15:21:13,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-22 15:21:13,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-22 15:21:13,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-22 15:21:13,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-22 15:21:13,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-22 15:21:13,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 03:21:13" (1/1) ... [2023-03-22 15:21:13,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32117d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:13, skipping insertion in model container [2023-03-22 15:21:13,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.03 03:21:13" (1/1) ... [2023-03-22 15:21:13,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-22 15:21:13,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-22 15:21:14,054 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/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[9241,9254] [2023-03-22 15:21:14,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 15:21:14,100 INFO L203 MainTranslator]: Completed pre-run [2023-03-22 15:21:14,151 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/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[9241,9254] [2023-03-22 15:21:14,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-22 15:21:14,215 INFO L208 MainTranslator]: Completed translation [2023-03-22 15:21:14,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14 WrapperNode [2023-03-22 15:21:14,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-22 15:21:14,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-22 15:21:14,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-22 15:21:14,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-22 15:21:14,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-22 15:21:14,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-22 15:21:14,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-22 15:21:14,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-22 15:21:14,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.03 03:21:14" (1/1) ... [2023-03-22 15:21:14,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-22 15:21:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-22 15:21:14,320 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) [2023-03-22 15:21:14,345 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 [2023-03-22 15:21:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-22 15:21:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-22 15:21:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-22 15:21:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-22 15:21:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-22 15:21:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-22 15:21:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-22 15:21:14,356 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-22 15:21:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-22 15:21:14,543 INFO L236 CfgBuilder]: Building ICFG [2023-03-22 15:21:14,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-22 15:21:15,046 INFO L277 CfgBuilder]: Performing block encoding [2023-03-22 15:21:15,052 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-22 15:21:15,053 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-22 15:21:15,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 03:21:15 BoogieIcfgContainer [2023-03-22 15:21:15,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-22 15:21:15,055 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-22 15:21:15,055 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-22 15:21:15,056 INFO L275 PluginConnector]: Sifa initialized [2023-03-22 15:21:15,060 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.03 03:21:15" (1/1) ... [2023-03-22 15:21:15,060 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=NONE ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-22 15:21:15,080 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-22 15:21:15,080 INFO L166 IcfgInterpreter]: Building call graph [2023-03-22 15:21:15,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-22 15:21:15,089 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-22 15:21:15,089 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-22 15:21:16,085 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 255 for LOIs