/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 EqDomain -i ../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:49:47,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:49:47,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:49:47,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:49:47,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:49:47,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:49:47,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:49:47,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:49:47,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:49:47,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:49:47,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:49:47,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:49:47,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:49:47,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:49:47,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:49:47,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:49:47,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:49:47,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:49:47,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:49:47,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:49:47,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:49:47,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:49:47,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:49:47,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:49:47,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 10:49:47,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 10:49:47,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 10:49:47,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 10:49:47,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 10:49:47,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 10:49:47,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 10:49:47,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 10:49:47,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 10:49:47,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:49:47,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:49:47,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:49:47,739 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 [2023-04-01 10:49:47,767 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:49:47,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:49:47,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:49:47,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:49:47,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:49:47,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:49:47,768 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:49:47,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:49:47,769 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:49:47,769 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:49:47,770 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:49:47,770 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:49:47,770 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:49:47,770 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:49:47,770 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:49:47,770 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:49:47,770 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:49:47,770 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:49:47,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:49:47,771 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:49:47,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:49:47,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:49:47,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:49:47,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:49:47,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:49:47,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:49:47,772 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:49:47,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:49:47,772 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:49:47,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:49:47,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:49:47,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:49:47,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:49:47,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:49:47,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:49:47,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:49:47,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:49:47,773 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:49:47,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:49:47,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:49:47,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:49:47,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:49:48,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:49:48,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:49:48,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:49:48,041 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:49:48,041 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:49:48,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2023-04-01 10:49:49,170 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:49:49,329 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:49:49,329 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2023-04-01 10:49:49,335 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be7d94635/484d1da8fb0d42aaaff24eccaa0036fd/FLAG7149ac191 [2023-04-01 10:49:49,346 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be7d94635/484d1da8fb0d42aaaff24eccaa0036fd [2023-04-01 10:49:49,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:49:49,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:49:49,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:49:49,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:49:49,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:49:49,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557d6389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49, skipping insertion in model container [2023-04-01 10:49:49,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:49:49,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:49:49,509 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_1232a.c[1957,1970] [2023-04-01 10:49:49,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:49:49,527 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:49:49,555 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_1232a.c[1957,1970] [2023-04-01 10:49:49,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:49:49,567 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:49:49,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49 WrapperNode [2023-04-01 10:49:49,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:49:49,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:49:49,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:49:49,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:49:49,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:49:49,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:49:49,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:49:49,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:49:49,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (1/1) ... [2023-04-01 10:49:49,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:49:49,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:49:49,636 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) [2023-04-01 10:49:49,638 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 [2023-04-01 10:49:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:49:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:49:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:49:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2023-04-01 10:49:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2023-04-01 10:49:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2023-04-01 10:49:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2023-04-01 10:49:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:49:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:49:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:49:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:49:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:49:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2023-04-01 10:49:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:49:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:49:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:49:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 10:49:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:49:49,732 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:49:49,734 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:49:50,003 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:49:50,185 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:49:50,185 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 10:49:50,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:49:50 BoogieIcfgContainer [2023-04-01 10:49:50,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:49:50,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:49:50,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:49:50,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:49:50,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:49:49" (1/3) ... [2023-04-01 10:49:50,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dedb241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:49:50, skipping insertion in model container [2023-04-01 10:49:50,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:49" (2/3) ... [2023-04-01 10:49:50,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dedb241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:49:50, skipping insertion in model container [2023-04-01 10:49:50,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:49:50" (3/3) ... [2023-04-01 10:49:50,195 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2023-04-01 10:49:50,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:49:50,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 10:49:50,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:49:50,267 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;@5573ece9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:49:50,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 10:49:50,271 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) [2023-04-01 10:49:50,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-01 10:49:50,278 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:49:50,279 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] [2023-04-01 10:49:50,280 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:49:50,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:49:50,286 INFO L85 PathProgramCache]: Analyzing trace with hash 61252910, now seen corresponding path program 1 times [2023-04-01 10:49:50,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:49:50,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271554091] [2023-04-01 10:49:50,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:49:50,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:49:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:49:50,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 10:49:50,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:49:50,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271554091] [2023-04-01 10:49:50,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271554091] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:49:50,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:49:50,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 10:49:50,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847605374] [2023-04-01 10:49:50,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:49:50,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 10:49:50,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:49:50,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 10:49:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 10:49:50,570 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) [2023-04-01 10:49:50,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:49:50,624 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2023-04-01 10:49:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 10:49:50,626 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 [2023-04-01 10:49:50,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:49:50,632 INFO L225 Difference]: With dead ends: 62 [2023-04-01 10:49:50,633 INFO L226 Difference]: Without dead ends: 31 [2023-04-01 10:49:50,636 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 [2023-04-01 10:49:50,640 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 [2023-04-01 10:49:50,640 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] [2023-04-01 10:49:50,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-04-01 10:49:50,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-04-01 10:49:50,687 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) [2023-04-01 10:49:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-04-01 10:49:50,689 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2023-04-01 10:49:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:49:50,689 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-04-01 10:49:50,690 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) [2023-04-01 10:49:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-04-01 10:49:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-01 10:49:50,692 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:49:50,692 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] [2023-04-01 10:49:50,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 10:49:50,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:49:50,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:49:50,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1743802880, now seen corresponding path program 1 times [2023-04-01 10:49:50,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:49:50,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71241502] [2023-04-01 10:49:50,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:49:50,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:49:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:49:50,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 10:49:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:49:50,809 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 10:49:50,810 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 10:49:50,812 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 10:49:50,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 10:49:50,817 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 10:49:50,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 10:49:50,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:49:50 BoogieIcfgContainer [2023-04-01 10:49:50,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 10:49:50,837 INFO L158 Benchmark]: Toolchain (without parser) took 1486.67ms. Allocated memory was 178.3MB in the beginning and 302.0MB in the end (delta: 123.7MB). Free memory was 120.3MB in the beginning and 233.4MB in the end (delta: -113.1MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2023-04-01 10:49:50,837 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:49:50,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.78ms. Allocated memory is still 178.3MB. Free memory was 120.1MB in the beginning and 109.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 10:49:50,838 INFO L158 Benchmark]: Boogie Preprocessor took 42.48ms. Allocated memory is still 178.3MB. Free memory was 109.1MB in the beginning and 107.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 10:49:50,839 INFO L158 Benchmark]: RCFGBuilder took 575.30ms. Allocated memory was 178.3MB in the beginning and 302.0MB in the end (delta: 123.7MB). Free memory was 107.2MB in the beginning and 264.9MB in the end (delta: -157.7MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. [2023-04-01 10:49:50,839 INFO L158 Benchmark]: TraceAbstraction took 646.72ms. Allocated memory is still 302.0MB. Free memory was 263.8MB in the beginning and 233.4MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-04-01 10:49:50,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.78ms. Allocated memory is still 178.3MB. Free memory was 120.1MB in the beginning and 109.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.48ms. Allocated memory is still 178.3MB. Free memory was 109.1MB in the beginning and 107.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 575.30ms. Allocated memory was 178.3MB in the beginning and 302.0MB in the end (delta: 123.7MB). Free memory was 107.2MB in the beginning and 264.9MB in the end (delta: -157.7MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. * TraceAbstraction took 646.72ms. Allocated memory is still 302.0MB. Free memory was 263.8MB in the beginning and 233.4MB in the end (delta: 30.4MB). 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: 82]: 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 81, overapproximation of someUnaryDOUBLEoperation at line 77. Possible FailurePath: [L76] double x = 0.0; [L77] double y = -0.0; VAL [x=0] [L78] CALL, EXPR fmin_double(x, y) VAL [\old(x)=0, \old(y)=4293918730] [L48] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L21] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L30-L31] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L33-L34] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L36-L37] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L40-L41] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L44] return 0; [L48] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=4293918730, __fpclassify_double(x)=0, x=0, y=4293918730] [L48] COND TRUE __fpclassify_double(x) == 0 [L49] return y; VAL [\old(x)=0, \old(y)=4293918730, \result=4293918730, x=0, y=4293918730] [L78] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4293918730, x=0, y=4293918730] [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res == -0.0 && __signbit_double(res) == 1=0, res=4293918730, x=0, y=4293918730] [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L82] reach_error() VAL [res=4293918730, x=0, y=4293918730] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 0.1s 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 [2023-04-01 10:49:50,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...