/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/float_req_bl_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 21:25:34,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 21:25:34,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 21:25:34,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 21:25:34,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 21:25:34,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 21:25:34,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 21:25:34,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 21:25:34,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 21:25:34,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 21:25:34,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 21:25:34,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 21:25:34,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 21:25:34,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 21:25:34,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 21:25:34,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 21:25:34,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 21:25:34,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 21:25:34,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 21:25:34,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 21:25:34,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 21:25:34,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 21:25:34,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 21:25:34,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 21:25:34,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 21:25:34,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 21:25:34,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 21:25:34,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 21:25:34,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 21:25:34,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 21:25:34,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 21:25:34,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 21:25:34,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 21:25:34,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 21:25:34,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 21:25:34,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 21:25:34,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 21:25:34,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 21:25:34,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 21:25:34,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 21:25:34,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 21:25:34,628 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 21:25:34,661 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 21:25:34,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 21:25:34,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 21:25:34,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 21:25:34,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 21:25:34,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 21:25:34,663 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 21:25:34,663 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 21:25:34,663 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 21:25:34,663 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 21:25:34,664 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 21:25:34,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 21:25:34,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 21:25:34,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 21:25:34,664 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 21:25:34,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 21:25:34,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 21:25:34,665 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 21:25:34,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 21:25:34,666 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 21:25:34,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 21:25:34,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 21:25:34,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 21:25:34,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 21:25:34,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 21:25:34,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 21:25:34,667 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 21:25:34,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 21:25:34,667 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 21:25:34,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 21:25:34,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:25:34,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 21:25:34,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 21:25:34,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 21:25:34,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 21:25:34,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 21:25:34,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 21:25:34,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 21:25:34,960 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 21:25:34,961 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 21:25:34,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2023-04-02 21:25:36,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 21:25:36,438 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 21:25:36,439 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2023-04-02 21:25:36,445 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70707a268/955a3ffdcbe14faca0f6caeb929a1269/FLAGa117a16a0 [2023-04-02 21:25:36,461 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70707a268/955a3ffdcbe14faca0f6caeb929a1269 [2023-04-02 21:25:36,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 21:25:36,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 21:25:36,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 21:25:36,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 21:25:36,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 21:25:36,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a19ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36, skipping insertion in model container [2023-04-02 21:25:36,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 21:25:36,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 21:25:36,673 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/float_req_bl_1232a.c[1656,1669] [2023-04-02 21:25:36,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:25:36,686 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 21:25:36,720 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/float_req_bl_1232a.c[1656,1669] [2023-04-02 21:25:36,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:25:36,735 INFO L208 MainTranslator]: Completed translation [2023-04-02 21:25:36,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36 WrapperNode [2023-04-02 21:25:36,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 21:25:36,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 21:25:36,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 21:25:36,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 21:25:36,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,785 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 21:25:36,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 21:25:36,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 21:25:36,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 21:25:36,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (1/1) ... [2023-04-02 21:25:36,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:25:36,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:25:36,824 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 21:25:36,847 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 21:25:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 21:25:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 21:25:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 21:25:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-04-02 21:25:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2023-04-02 21:25:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2023-04-02 21:25:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 21:25:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 21:25:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 21:25:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 21:25:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 21:25:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-02 21:25:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-04-02 21:25:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 21:25:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 21:25:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 21:25:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 21:25:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2023-04-02 21:25:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2023-04-02 21:25:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 21:25:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 21:25:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 21:25:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 21:25:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 21:25:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 21:25:36,954 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 21:25:36,956 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 21:25:37,111 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 21:25:37,275 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 21:25:37,275 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-02 21:25:37,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:25:37 BoogieIcfgContainer [2023-04-02 21:25:37,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 21:25:37,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 21:25:37,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 21:25:37,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 21:25:37,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:25:36" (1/3) ... [2023-04-02 21:25:37,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a95f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:25:37, skipping insertion in model container [2023-04-02 21:25:37,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:25:36" (2/3) ... [2023-04-02 21:25:37,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a95f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:25:37, skipping insertion in model container [2023-04-02 21:25:37,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:25:37" (3/3) ... [2023-04-02 21:25:37,284 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c [2023-04-02 21:25:37,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 21:25:37,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 21:25:37,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 21:25:37,349 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;@6fee810b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 21:25:37,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 21:25:37,360 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 21:25:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-02 21:25:37,367 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:25:37,367 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 21:25:37,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:25:37,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:25:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1969873223, now seen corresponding path program 1 times [2023-04-02 21:25:37,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:25:37,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271394243] [2023-04-02 21:25:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:25:37,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:25:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:25:37,542 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 21:25:37,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:25:37,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271394243] [2023-04-02 21:25:37,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271394243] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:25:37,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:25:37,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-02 21:25:37,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094304577] [2023-04-02 21:25:37,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:25:37,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-02 21:25:37,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:25:37,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-02 21:25:37,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-02 21:25:37,577 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 21:25:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:25:37,669 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2023-04-02 21:25:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-02 21:25:37,671 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 21:25:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:25:37,677 INFO L225 Difference]: With dead ends: 62 [2023-04-02 21:25:37,677 INFO L226 Difference]: Without dead ends: 31 [2023-04-02 21:25:37,679 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 21:25:37,682 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 21:25:37,683 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 21:25:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-04-02 21:25:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-04-02 21:25:37,734 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 21:25:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-04-02 21:25:37,736 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2023-04-02 21:25:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:25:37,736 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-04-02 21:25:37,736 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 21:25:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-04-02 21:25:37,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-02 21:25:37,750 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:25:37,750 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 21:25:37,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 21:25:37,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:25:37,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:25:37,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1706820922, now seen corresponding path program 1 times [2023-04-02 21:25:37,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:25:37,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991630664] [2023-04-02 21:25:37,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:25:37,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:25:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:25:37,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 21:25:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:25:37,910 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-02 21:25:37,911 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 21:25:37,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 21:25:37,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 21:25:37,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 21:25:37,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 21:25:37,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 09:25:37 BoogieIcfgContainer [2023-04-02 21:25:37,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 21:25:37,953 INFO L158 Benchmark]: Toolchain (without parser) took 1487.69ms. Allocated memory is still 298.8MB. Free memory was 251.8MB in the beginning and 253.4MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:25:37,953 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:25:37,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.44ms. Allocated memory is still 298.8MB. Free memory was 251.5MB in the beginning and 240.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-02 21:25:37,957 INFO L158 Benchmark]: Boogie Preprocessor took 50.37ms. Allocated memory is still 298.8MB. Free memory was 240.7MB in the beginning and 238.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 21:25:37,958 INFO L158 Benchmark]: RCFGBuilder took 489.57ms. Allocated memory is still 298.8MB. Free memory was 238.9MB in the beginning and 219.4MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-04-02 21:25:37,961 INFO L158 Benchmark]: TraceAbstraction took 672.68ms. Allocated memory is still 298.8MB. Free memory was 218.7MB in the beginning and 253.4MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:25:37,965 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 184.5MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 268.44ms. Allocated memory is still 298.8MB. Free memory was 251.5MB in the beginning and 240.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.37ms. Allocated memory is still 298.8MB. Free memory was 240.7MB in the beginning and 238.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 489.57ms. Allocated memory is still 298.8MB. Free memory was 238.9MB in the beginning and 219.4MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 672.68ms. Allocated memory is still 298.8MB. Free memory was 218.7MB in the beginning and 253.4MB in the end (delta: -34.7MB). There was no memory consumed. 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: 72]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someUnaryFLOAToperation at line 67. Possible FailurePath: [L66] float x = 0.0f; [L67] float y = -0.0f; VAL [x=0] [L68] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0, \old(y)=4286578698] [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L15] __uint32_t w; VAL [\old(x)=0, x=0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L25-L26] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L28-L29] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L31] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L34] return 0; [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=4286578698, __fpclassify_float(x)=0, x=0, y=4286578698] [L38] COND TRUE __fpclassify_float(x) == 0 [L39] return y; VAL [\old(x)=0, \old(y)=4286578698, \result=4286578698, x=0, y=4286578698] [L68] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578698, x=0, y=4286578698] [L68] float res = fmin_float(x, y); [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res == -0.0f && __signbit_float(res) == 1=0, res=4286578698, x=0, y=4286578698] [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L72] reach_error() VAL [res=4286578698, x=0, y=4286578698] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 37 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 [2023-04-02 21:25:37,994 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...