/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 IntervalDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:47:08,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:47:08,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:47:08,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:47:08,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:47:08,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:47:08,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:47:08,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:47:08,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:47:08,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:47:08,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:47:08,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:47:08,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:47:08,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:47:08,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:47:08,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:47:08,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:47:08,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:47:08,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:47:08,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:47:08,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:47:08,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:47:08,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:47:08,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:47:08,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:47:08,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:47:08,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:47:08,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:47:08,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:47:08,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:47:08,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:47:08,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:47:08,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:47:08,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:47:08,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:47:08,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:47:08,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:47:08,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:47:08,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:47:08,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:47:08,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:47:08,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 22:47:08,584 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:47:08,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:47:08,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:47:08,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:47:08,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:47:08,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:47:08,586 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:47:08,586 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:47:08,586 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:47:08,586 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:47:08,586 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:47:08,586 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:47:08,586 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:47:08,586 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:47:08,587 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:47:08,587 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:47:08,587 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:47:08,587 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:47:08,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:47:08,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:47:08,589 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:47:08,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:47:08,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:47:08,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:47:08,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:47:08,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:47:08,589 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:47:08,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:47:08,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:47:08,590 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:47:08,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:47:08,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:47:08,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:47:08,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:47:08,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:47:08,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:47:08,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:47:08,854 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:47:08,855 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:47:08,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2023-03-31 22:47:10,028 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:47:10,188 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:47:10,188 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2023-03-31 22:47:10,193 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b529d0d42/49ba56bdb5fd4c8fa2dc59b96c19af54/FLAGf60d4574b [2023-03-31 22:47:10,204 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b529d0d42/49ba56bdb5fd4c8fa2dc59b96c19af54 [2023-03-31 22:47:10,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:47:10,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:47:10,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:47:10,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:47:10,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:47:10,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264462a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10, skipping insertion in model container [2023-03-31 22:47:10,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:47:10,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:47:10,356 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_1230.c[1411,1424] [2023-03-31 22:47:10,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:47:10,367 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:47:10,393 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_1230.c[1411,1424] [2023-03-31 22:47:10,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:47:10,403 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:47:10,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10 WrapperNode [2023-03-31 22:47:10,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:47:10,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:47:10,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:47:10,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:47:10,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:47:10,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:47:10,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:47:10,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:47:10,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (1/1) ... [2023-03-31 22:47:10,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:47:10,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:47:10,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 22:47:10,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 22:47:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:47:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:47:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:47:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-03-31 22:47:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2023-03-31 22:47:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-03-31 22:47:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:47:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:47:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:47:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:47:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:47:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-03-31 22:47:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 22:47:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 22:47:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:47:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:47:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2023-03-31 22:47:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-03-31 22:47:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:47:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:47:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:47:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:47:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 22:47:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:47:10,569 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:47:10,571 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:47:10,730 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:47:10,882 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:47:10,882 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-03-31 22:47:10,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:47:10 BoogieIcfgContainer [2023-03-31 22:47:10,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:47:10,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:47:10,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:47:10,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:47:10,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:47:10" (1/3) ... [2023-03-31 22:47:10,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1e78be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:47:10, skipping insertion in model container [2023-03-31 22:47:10,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:10" (2/3) ... [2023-03-31 22:47:10,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1e78be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:47:10, skipping insertion in model container [2023-03-31 22:47:10,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:47:10" (3/3) ... [2023-03-31 22:47:10,892 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2023-03-31 22:47:10,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:47:10,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:47:10,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:47:10,978 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;@5643f7db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:47:10,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:47:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 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) [2023-03-31 22:47:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-03-31 22:47:10,990 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:47:10,991 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, 1, 1] [2023-03-31 22:47:10,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:47:10,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:47:10,997 INFO L85 PathProgramCache]: Analyzing trace with hash -910658286, now seen corresponding path program 1 times [2023-03-31 22:47:11,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:47:11,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752859711] [2023-03-31 22:47:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:47:11,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:47:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:47:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:47:11,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:47:11,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752859711] [2023-03-31 22:47:11,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752859711] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:47:11,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:47:11,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:47:11,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422347052] [2023-03-31 22:47:11,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:47:11,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:47:11,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:47:11,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:47:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:47:11,227 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 22:47:11,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:47:11,294 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2023-03-31 22:47:11,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:47:11,297 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2023-03-31 22:47:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:47:11,304 INFO L225 Difference]: With dead ends: 54 [2023-03-31 22:47:11,304 INFO L226 Difference]: Without dead ends: 27 [2023-03-31 22:47:11,307 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 [2023-03-31 22:47:11,311 INFO L413 NwaCegarLoop]: 28 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, 28 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 [2023-03-31 22:47:11,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 22:47:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-03-31 22:47:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-03-31 22:47:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2023-03-31 22:47:11,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-03-31 22:47:11,349 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2023-03-31 22:47:11,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:47:11,350 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-03-31 22:47:11,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 22:47:11,350 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-03-31 22:47:11,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-03-31 22:47:11,352 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:47:11,352 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, 1, 1, 1] [2023-03-31 22:47:11,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:47:11,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:47:11,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:47:11,353 INFO L85 PathProgramCache]: Analyzing trace with hash -617377497, now seen corresponding path program 1 times [2023-03-31 22:47:11,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:47:11,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434301208] [2023-03-31 22:47:11,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:47:11,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:47:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:47:11,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 22:47:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:47:11,492 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 22:47:11,492 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 22:47:11,494 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 22:47:11,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:47:11,498 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 22:47:11,501 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:47:11,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:47:11 BoogieIcfgContainer [2023-03-31 22:47:11,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:47:11,521 INFO L158 Benchmark]: Toolchain (without parser) took 1314.08ms. Allocated memory is still 292.6MB. Free memory was 249.1MB in the beginning and 258.6MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:47:11,521 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory was 142.1MB in the beginning and 141.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:47:11,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.16ms. Allocated memory is still 292.6MB. Free memory was 248.8MB in the beginning and 238.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 22:47:11,522 INFO L158 Benchmark]: Boogie Preprocessor took 28.25ms. Allocated memory is still 292.6MB. Free memory was 238.3MB in the beginning and 236.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 22:47:11,522 INFO L158 Benchmark]: RCFGBuilder took 450.96ms. Allocated memory is still 292.6MB. Free memory was 236.7MB in the beginning and 218.2MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-03-31 22:47:11,523 INFO L158 Benchmark]: TraceAbstraction took 633.99ms. Allocated memory is still 292.6MB. Free memory was 217.5MB in the beginning and 258.6MB in the end (delta: -41.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:47:11,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory was 142.1MB in the beginning and 141.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.16ms. Allocated memory is still 292.6MB. Free memory was 248.8MB in the beginning and 238.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.25ms. Allocated memory is still 292.6MB. Free memory was 238.3MB in the beginning and 236.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 450.96ms. Allocated memory is still 292.6MB. Free memory was 236.7MB in the beginning and 218.2MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 633.99ms. Allocated memory is still 292.6MB. Free memory was 217.5MB in the beginning and 258.6MB in the end (delta: -41.1MB). 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: 61]: 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 46, overapproximation of someBinaryArithmeticFLOAToperation at line 56. Possible FailurePath: [L56] float x = 0.0f / 0.0f; [L57] float y = 0.0f / 0.0f; [L58] CALL, EXPR fmin_float(x, y) VAL [\old(x)=2139095050, \old(y)=2139095051] [L37] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095050] [L14] __uint32_t w; VAL [\old(x)=2139095050, x=2139095050] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L24-L25] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L27-L28] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L30] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L33] return 0; [L37] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095050, \old(y)=2139095051, __fpclassify_float(x)=0, x=2139095050, y=2139095051] [L37] COND TRUE __fpclassify_float(x) == 0 [L38] return y; VAL [\old(x)=2139095050, \old(y)=2139095051, \result=2139095051, x=2139095050, y=2139095051] [L58] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=2139095051, x=2139095050, y=2139095051] [L58] float res = fmin_float(x, y); [L60] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095051] [L46] return x != x; [L60] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095051, x=2139095050, y=2139095051] [L60] COND TRUE !isnan_float(res) [L61] reach_error() VAL [res=2139095051, x=2139095050, y=2139095051] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 28 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, 28 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=31occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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 [2023-03-31 22:47:11,548 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...