/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 21:24:15,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 21:24:15,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 21:24:15,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 21:24:15,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 21:24:15,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 21:24:15,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 21:24:15,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 21:24:15,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 21:24:15,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 21:24:15,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 21:24:15,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 21:24:15,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 21:24:15,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 21:24:15,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 21:24:15,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 21:24:15,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 21:24:15,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 21:24:15,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 21:24:15,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 21:24:15,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 21:24:15,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 21:24:15,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 21:24:15,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 21:24:15,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 21:24:15,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 21:24:15,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 21:24:15,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 21:24:15,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 21:24:15,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 21:24:15,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 21:24:15,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 21:24:15,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 21:24:15,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 21:24:15,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 21:24:15,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 21:24:15,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 21:24:16,018 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 21:24:16,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 21:24:16,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 21:24:16,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 21:24:16,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 21:24:16,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 21:24:16,020 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 21:24:16,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 21:24:16,020 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 21:24:16,020 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 21:24:16,021 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 21:24:16,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 21:24:16,021 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 21:24:16,021 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 21:24:16,021 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 21:24:16,021 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 21:24:16,021 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 21:24:16,022 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 21:24:16,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 21:24:16,022 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 21:24:16,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 21:24:16,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 21:24:16,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 21:24:16,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 21:24:16,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 21:24:16,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 21:24:16,023 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 21:24:16,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 21:24:16,023 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 21:24:16,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 21:24:16,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:24:16,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 21:24:16,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 21:24:16,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 21:24:16,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 21:24:16,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 21:24:16,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 21:24:16,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 21:24:16,210 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 21:24:16,210 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 21:24:16,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2023-04-02 21:24:17,210 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 21:24:17,369 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 21:24:17,369 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2023-04-02 21:24:17,378 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164412dd5/782d924f742e47f9a9d6e6a2b1035c9e/FLAGc2b74550d [2023-04-02 21:24:17,390 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164412dd5/782d924f742e47f9a9d6e6a2b1035c9e [2023-04-02 21:24:17,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 21:24:17,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 21:24:17,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 21:24:17,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 21:24:17,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 21:24:17,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44eb3b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17, skipping insertion in model container [2023-04-02 21:24:17,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 21:24:17,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 21:24:17,561 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/float-newlib/double_req_bl_1252a.c[2154,2167] [2023-04-02 21:24:17,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:24:17,568 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 21:24:17,586 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/float-newlib/double_req_bl_1252a.c[2154,2167] [2023-04-02 21:24:17,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:24:17,595 INFO L208 MainTranslator]: Completed translation [2023-04-02 21:24:17,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17 WrapperNode [2023-04-02 21:24:17,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 21:24:17,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 21:24:17,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 21:24:17,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 21:24:17,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 21:24:17,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 21:24:17,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 21:24:17,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 21:24:17,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (1/1) ... [2023-04-02 21:24:17,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:24:17,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:24:17,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 21:24:17,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 21:24:17,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 21:24:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 21:24:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 21:24:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2023-04-02 21:24:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2023-04-02 21:24:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2023-04-02 21:24:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 21:24:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 21:24:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 21:24:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 21:24:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 21:24:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 21:24:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 21:24:17,780 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 21:24:17,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 21:24:17,979 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 21:24:18,099 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 21:24:18,100 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-02 21:24:18,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:24:18 BoogieIcfgContainer [2023-04-02 21:24:18,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 21:24:18,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 21:24:18,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 21:24:18,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 21:24:18,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:24:17" (1/3) ... [2023-04-02 21:24:18,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41389ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:24:18, skipping insertion in model container [2023-04-02 21:24:18,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:17" (2/3) ... [2023-04-02 21:24:18,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41389ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:24:18, skipping insertion in model container [2023-04-02 21:24:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:24:18" (3/3) ... [2023-04-02 21:24:18,114 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2023-04-02 21:24:18,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 21:24:18,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 21:24:18,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 21:24:18,165 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ce8263d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 21:24:18,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 21:24:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 23 states have internal predecessors, (30), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-02 21:24:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-02 21:24:18,172 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:24:18,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:24:18,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:24:18,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:24:18,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1962083496, now seen corresponding path program 1 times [2023-04-02 21:24:18,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:24:18,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451136644] [2023-04-02 21:24:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:24:18,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:24:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:24:18,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:24:18,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:24:18,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451136644] [2023-04-02 21:24:18,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451136644] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:24:18,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:24:18,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-02 21:24:18,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857976651] [2023-04-02 21:24:18,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:24:18,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-02 21:24:18,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:24:18,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-02 21:24:18,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-02 21:24:18,351 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 23 states have internal predecessors, (30), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 21:24:18,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:24:18,399 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2023-04-02 21:24:18,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-02 21:24:18,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-04-02 21:24:18,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:24:18,405 INFO L225 Difference]: With dead ends: 62 [2023-04-02 21:24:18,405 INFO L226 Difference]: Without dead ends: 31 [2023-04-02 21:24:18,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-02 21:24:18,409 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 21:24:18,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 21:24:18,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-04-02 21:24:18,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-04-02 21:24:18,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-02 21:24:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-04-02 21:24:18,446 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2023-04-02 21:24:18,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:24:18,447 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-04-02 21:24:18,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 21:24:18,448 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-04-02 21:24:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-02 21:24:18,450 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:24:18,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:24:18,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 21:24:18,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:24:18,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:24:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash -124915964, now seen corresponding path program 1 times [2023-04-02 21:24:18,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:24:18,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992839898] [2023-04-02 21:24:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:24:18,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:24:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:24:18,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 21:24:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:24:18,562 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-02 21:24:18,562 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 21:24:18,563 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 21:24:18,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 21:24:18,566 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 21:24:18,568 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 21:24:18,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 09:24:18 BoogieIcfgContainer [2023-04-02 21:24:18,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 21:24:18,599 INFO L158 Benchmark]: Toolchain (without parser) took 1205.72ms. Allocated memory is still 268.4MB. Free memory was 230.4MB in the beginning and 166.5MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2023-04-02 21:24:18,599 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 181.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:24:18,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.81ms. Allocated memory is still 268.4MB. Free memory was 230.4MB in the beginning and 219.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-02 21:24:18,602 INFO L158 Benchmark]: Boogie Preprocessor took 21.54ms. Allocated memory is still 268.4MB. Free memory was 219.4MB in the beginning and 217.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 21:24:18,603 INFO L158 Benchmark]: RCFGBuilder took 483.38ms. Allocated memory is still 268.4MB. Free memory was 217.9MB in the beginning and 196.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-04-02 21:24:18,605 INFO L158 Benchmark]: TraceAbstraction took 495.11ms. Allocated memory is still 268.4MB. Free memory was 196.4MB in the beginning and 166.5MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-04-02 21:24:18,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 181.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.81ms. Allocated memory is still 268.4MB. Free memory was 230.4MB in the beginning and 219.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.54ms. Allocated memory is still 268.4MB. Free memory was 219.4MB in the beginning and 217.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 483.38ms. Allocated memory is still 268.4MB. Free memory was 217.9MB in the beginning and 196.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 495.11ms. Allocated memory is still 268.4MB. Free memory was 196.4MB in the beginning and 166.5MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 87]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someUnaryDOUBLEoperation at line 81. Possible FailurePath: [L81] double x = -0.0; [L82] double y = 0.0; VAL [y=0] [L83] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4293918730, \old(y)=0] [L54] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4293918730] [L26] __uint32_t msw, lsw; VAL [\old(x)=4293918730, x=4293918730] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L49] return 0; [L54] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4293918730, \old(y)=0, __fpclassify_double(x)=0, x=4293918730, y=0] [L54] COND TRUE __fpclassify_double(x) == 0 [L55] return y; VAL [\old(x)=4293918730, \old(y)=0, \result=0, x=4293918730, y=0] [L83] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=0, x=4293918730, y=0] [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res == 0.0 && __signbit_double(res) == 0=0, res=0, x=4293918730, y=0] [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() VAL [res=0, x=4293918730, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-04-02 21:24:18,622 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...