/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/systemc/toy.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 06:40:47,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 06:40:47,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 06:40:47,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 06:40:47,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 06:40:47,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 06:40:47,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 06:40:47,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 06:40:47,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 06:40:47,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 06:40:47,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 06:40:47,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 06:40:47,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 06:40:47,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 06:40:47,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 06:40:47,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 06:40:47,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 06:40:47,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 06:40:47,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 06:40:47,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 06:40:47,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 06:40:47,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 06:40:47,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 06:40:47,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 06:40:47,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 06:40:47,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 06:40:47,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 06:40:47,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 06:40:47,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 06:40:47,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 06:40:47,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 06:40:47,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 06:40:47,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 06:40:47,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 06:40:47,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 06:40:47,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 06:40:47,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 06:40:47,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 06:40:47,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 06:40:47,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 06:40:47,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 06:40:47,360 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 06:40:47,394 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 06:40:47,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 06:40:47,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 06:40:47,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 06:40:47,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 06:40:47,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 06:40:47,396 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 06:40:47,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 06:40:47,396 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 06:40:47,396 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 06:40:47,396 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 06:40:47,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 06:40:47,396 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 06:40:47,397 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 06:40:47,397 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 06:40:47,397 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 06:40:47,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 06:40:47,397 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 06:40:47,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 06:40:47,398 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 06:40:47,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 06:40:47,399 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 06:40:47,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 06:40:47,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 06:40:47,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 06:40:47,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:40:47,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 06:40:47,399 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 06:40:47,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 06:40:47,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 06:40:47,400 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 06:40:47,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 06:40:47,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 06:40:47,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 06:40:47,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 06:40:47,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 06:40:47,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 06:40:47,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 06:40:47,626 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 06:40:47,627 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 06:40:47,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy.cil.c [2023-03-31 06:40:48,798 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 06:40:48,994 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 06:40:48,994 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy.cil.c [2023-03-31 06:40:49,003 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e7b3aa3/414db5e043274f29b5c2a6a3bdc245c2/FLAG4b820be75 [2023-03-31 06:40:49,016 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e7b3aa3/414db5e043274f29b5c2a6a3bdc245c2 [2023-03-31 06:40:49,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 06:40:49,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 06:40:49,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 06:40:49,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 06:40:49,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 06:40:49,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129c51d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49, skipping insertion in model container [2023-03-31 06:40:49,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 06:40:49,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 06:40:49,183 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/systemc/toy.cil.c[697,710] [2023-03-31 06:40:49,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:40:49,244 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 06:40:49,252 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/systemc/toy.cil.c[697,710] [2023-03-31 06:40:49,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:40:49,299 INFO L208 MainTranslator]: Completed translation [2023-03-31 06:40:49,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49 WrapperNode [2023-03-31 06:40:49,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 06:40:49,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 06:40:49,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 06:40:49,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 06:40:49,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,342 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 06:40:49,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 06:40:49,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 06:40:49,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 06:40:49,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:40:49" (1/1) ... [2023-03-31 06:40:49,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:40:49,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 06:40:49,377 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 06:40:49,389 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 06:40:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 06:40:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 06:40:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 06:40:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-03-31 06:40:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure write_loop [2023-03-31 06:40:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure compute1 [2023-03-31 06:40:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure compute2 [2023-03-31 06:40:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure write_back [2023-03-31 06:40:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure read [2023-03-31 06:40:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-03-31 06:40:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-03-31 06:40:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure write_loop [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure compute1 [2023-03-31 06:40:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure compute2 [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure write_back [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 06:40:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 06:40:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 06:40:49,487 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 06:40:49,489 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 06:40:49,960 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 06:40:50,206 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 06:40:50,207 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-03-31 06:40:50,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:40:50 BoogieIcfgContainer [2023-03-31 06:40:50,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 06:40:50,211 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 06:40:50,211 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 06:40:50,211 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 06:40:50,212 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:40:50" (1/1) ... [2023-03-31 06:40:50,213 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 06:40:50,238 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 06:40:50,238 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 06:40:50,243 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 06:40:50,248 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 06:40:50,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 06:40:50,847 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 146 for LOIs [2023-03-31 06:40:51,279 INFO L197 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 136 for LOIs [2023-03-31 06:41:00,600 INFO L197 IcfgInterpreter]: Interpreting procedure eval with input of size 82 for LOIs [2023-03-31 06:41:02,059 INFO L197 IcfgInterpreter]: Interpreting procedure write_loop with input of size 68 for LOIs [2023-03-31 06:41:02,143 INFO L197 IcfgInterpreter]: Interpreting procedure error with input of size 53 for LOIs [2023-03-31 06:41:02,151 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 06:41:02,162 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 06:41:02,163 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 06:41:02,164 INFO L158 Benchmark]: Toolchain (without parser) took 13143.75ms. Allocated memory was 251.7MB in the beginning and 848.3MB in the end (delta: 596.6MB). Free memory was 196.1MB in the beginning and 479.6MB in the end (delta: -283.5MB). Peak memory consumption was 314.0MB. Max. memory is 8.0GB. [2023-03-31 06:41:02,164 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 174.1MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 06:41:02,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.35ms. Allocated memory is still 251.7MB. Free memory was 196.1MB in the beginning and 181.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-03-31 06:41:02,166 INFO L158 Benchmark]: Boogie Preprocessor took 46.92ms. Allocated memory is still 251.7MB. Free memory was 181.1MB in the beginning and 178.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 06:41:02,170 INFO L158 Benchmark]: RCFGBuilder took 861.67ms. Allocated memory is still 251.7MB. Free memory was 178.6MB in the beginning and 170.8MB in the end (delta: 7.8MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. [2023-03-31 06:41:02,170 INFO L158 Benchmark]: Sifa took 11951.42ms. Allocated memory was 251.7MB in the beginning and 848.3MB in the end (delta: 596.6MB). Free memory was 170.8MB in the beginning and 479.6MB in the end (delta: -308.8MB). Peak memory consumption was 288.4MB. Max. memory is 8.0GB. [2023-03-31 06:41:02,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 174.1MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 277.35ms. Allocated memory is still 251.7MB. Free memory was 196.1MB in the beginning and 181.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.92ms. Allocated memory is still 251.7MB. Free memory was 181.1MB in the beginning and 178.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 861.67ms. Allocated memory is still 251.7MB. Free memory was 178.6MB in the beginning and 170.8MB in the end (delta: 7.8MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. * Sifa took 11951.42ms. Allocated memory was 251.7MB in the beginning and 848.3MB in the end (delta: 596.6MB). Free memory was 170.8MB in the beginning and 479.6MB in the end (delta: -308.8MB). Peak memory consumption was 288.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 11.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 351, DAG_INTERPRETER_EARLY_EXITS: 15, TOOLS_POST_APPLICATIONS: 665, TOOLS_POST_TIME: 7.0s, TOOLS_POST_CALL_APPLICATIONS: 91, TOOLS_POST_CALL_TIME: 2.7s, TOOLS_POST_RETURN_APPLICATIONS: 86, TOOLS_POST_RETURN_TIME: 1.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 814, TOOLS_QUANTIFIERELIM_TIME: 10.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 854, FLUID_YES_ANSWERS: 33, DOMAIN_JOIN_APPLICATIONS: 324, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 33, DOMAIN_ALPHA_TIME: 0.1s, DOMAIN_WIDEN_APPLICATIONS: 9, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 29, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 351, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 20, LOOP_SUMMARIZER_CACHE_MISSES: 20, LOOP_SUMMARIZER_OVERALL_TIME: 8.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 8.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 29, CALL_SUMMARIZER_APPLICATIONS: 86, CALL_SUMMARIZER_CACHE_MISSES: 8, CALL_SUMMARIZER_OVERALL_TIME: 1.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 1.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 2097, DAG_COMPRESSION_RETAINED_NODES: 323 - UnprovableResult [Line: 23]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 1210#(and (not (= (+ ~t_b~0 1) ~d~0)) (not (= (+ ~t_b~0 2) ~d~0)) (exists ((v_eval_~tmp~0_BEFORE_CALL_16 Int)) (and (<= v_eval_~tmp~0_BEFORE_CALL_16 2147483647) (not (= v_eval_~tmp~0_BEFORE_CALL_16 0)) (<= 0 (+ v_eval_~tmp~0_BEFORE_CALL_16 2147483648)))) (or (and (= ~wl_i~0 1) (= ~p_in~0 0) (= ~r_i~0 0) (= ~c1_i~0 1) (= ~c2_i~0 1) (= ~p_out~0 0) (= |#NULL.offset| 0) (= ~wb_i~0 1) (= ~e_p_in~0 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= ~wl_i~0 1) (= ~wb_pc~0 1) (= ~p_in~0 0) (= ~r_i~0 0) (= ~c1_i~0 1) (= ~c2_i~0 1) (= ~p_out~0 0) (= |#NULL.offset| 0) (= ~wb_i~0 1) (= ~e_p_in~0 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (= ~wl_st~0 1) (= 2 ~wl_pc~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 06:41:02,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...