/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/float_req_bl_0710.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:50:17,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:50:17,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:50:17,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:50:17,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:50:17,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:50:17,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:50:17,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:50:17,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:50:17,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:50:17,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:50:17,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:50:17,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:50:17,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:50:17,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:50:17,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:50:17,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:50:17,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:50:17,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:50:17,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:50:17,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:50:17,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:50:17,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:50:17,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:50:17,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 10:50:17,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 10:50:17,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 10:50:17,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 10:50:17,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 10:50:17,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 10:50:17,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 10:50:17,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 10:50:17,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 10:50:17,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 10:50:17,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 10:50:17,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 10:50:17,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 10:50:17,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 10:50:17,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:50:17,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:50:17,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:50:17,798 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 10:50:17,829 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:50:17,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:50:17,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:50:17,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:50:17,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:50:17,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:50:17,831 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:50:17,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:50:17,831 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:50:17,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:50:17,832 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:50:17,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:50:17,832 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:50:17,833 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:50:17,833 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:50:17,833 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:50:17,833 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:50:17,833 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:50:17,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:50:17,834 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:50:17,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:50:17,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:50:17,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:50:17,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:50:17,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:50:17,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:50:17,835 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:50:17,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:50:17,835 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:50:17,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:50:17,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:50:17,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:50:17,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:50:17,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:50:17,836 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:50:17,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:50:17,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:50:17,836 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:50:17,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:50:17,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:50:17,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:50:17,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:50:18,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:50:18,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:50:18,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:50:18,123 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:50:18,124 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:50:18,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2023-04-01 10:50:19,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:50:19,483 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:50:19,484 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2023-04-01 10:50:19,489 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4048b4f/48c2a3aed3bd4c1b8263758c8a821e83/FLAGf17492e3b [2023-04-01 10:50:19,503 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4048b4f/48c2a3aed3bd4c1b8263758c8a821e83 [2023-04-01 10:50:19,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:50:19,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:50:19,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:50:19,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:50:19,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:50:19,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47cbc997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19, skipping insertion in model container [2023-04-01 10:50:19,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:50:19,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:50:19,677 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_0710.c[1961,1974] [2023-04-01 10:50:19,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:50:19,690 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:50:19,712 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_0710.c[1961,1974] [2023-04-01 10:50:19,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:50:19,725 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:50:19,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19 WrapperNode [2023-04-01 10:50:19,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:50:19,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:50:19,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:50:19,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:50:19,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,760 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:50:19,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:50:19,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:50:19,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:50:19,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (1/1) ... [2023-04-01 10:50:19,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:50:19,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:50:19,790 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 10:50:19,792 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 10:50:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:50:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:50:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:50:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-04-01 10:50:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-04-01 10:50:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-01 10:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-04-01 10:50:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:50:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:50:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:50:19,888 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:50:19,890 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:50:20,164 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:50:20,366 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:50:20,366 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-04-01 10:50:20,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:50:20 BoogieIcfgContainer [2023-04-01 10:50:20,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:50:20,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:50:20,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:50:20,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:50:20,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:50:19" (1/3) ... [2023-04-01 10:50:20,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ef914a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:50:20, skipping insertion in model container [2023-04-01 10:50:20,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:19" (2/3) ... [2023-04-01 10:50:20,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ef914a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:50:20, skipping insertion in model container [2023-04-01 10:50:20,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:50:20" (3/3) ... [2023-04-01 10:50:20,382 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2023-04-01 10:50:20,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:50:20,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 10:50:20,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:50:20,458 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;@75bbf133, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:50:20,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 10:50:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 28 states have (on average 1.5) internal successors, (42), 29 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 10:50:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-01 10:50:20,468 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:50:20,469 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 10:50:20,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:50:20,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:50:20,474 INFO L85 PathProgramCache]: Analyzing trace with hash -959575594, now seen corresponding path program 1 times [2023-04-01 10:50:20,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:50:20,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891916235] [2023-04-01 10:50:20,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:50:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:50:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:50:20,695 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 10:50:20,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:50:20,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891916235] [2023-04-01 10:50:20,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891916235] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:50:20,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:50:20,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 10:50:20,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081517984] [2023-04-01 10:50:20,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:50:20,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 10:50:20,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:50:20,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 10:50:20,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 10:50:20,743 INFO L87 Difference]: Start difference. First operand has 38 states, 28 states have (on average 1.5) internal successors, (42), 29 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 10:50:20,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:50:20,803 INFO L93 Difference]: Finished difference Result 68 states and 91 transitions. [2023-04-01 10:50:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 10:50:20,805 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-04-01 10:50:20,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:50:20,848 INFO L225 Difference]: With dead ends: 68 [2023-04-01 10:50:20,848 INFO L226 Difference]: Without dead ends: 33 [2023-04-01 10:50:20,852 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 10:50:20,864 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 10:50:20,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:50:20,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-04-01 10:50:20,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-04-01 10:50:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 10:50:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2023-04-01 10:50:20,903 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 20 [2023-04-01 10:50:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:50:20,904 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2023-04-01 10:50:20,905 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 10:50:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-04-01 10:50:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-01 10:50:20,907 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:50:20,907 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 10:50:20,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 10:50:20,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:50:20,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:50:20,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1901254405, now seen corresponding path program 1 times [2023-04-01 10:50:20,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:50:20,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307172851] [2023-04-01 10:50:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:50:20,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:50:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:50:20,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 10:50:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:50:21,021 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 10:50:21,021 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 10:50:21,022 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 10:50:21,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 10:50:21,027 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 10:50:21,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 10:50:21,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:50:21 BoogieIcfgContainer [2023-04-01 10:50:21,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 10:50:21,053 INFO L158 Benchmark]: Toolchain (without parser) took 1546.36ms. Allocated memory is still 289.4MB. Free memory was 238.3MB in the beginning and 243.3MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:50:21,054 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 195.0MB. Free memory was 144.1MB in the beginning and 144.0MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:50:21,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.43ms. Allocated memory is still 289.4MB. Free memory was 238.3MB in the beginning and 226.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-01 10:50:21,055 INFO L158 Benchmark]: Boogie Preprocessor took 36.12ms. Allocated memory is still 289.4MB. Free memory was 226.8MB in the beginning and 225.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 10:50:21,055 INFO L158 Benchmark]: RCFGBuilder took 605.21ms. Allocated memory is still 289.4MB. Free memory was 225.1MB in the beginning and 200.6MB in the end (delta: 24.5MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-04-01 10:50:21,055 INFO L158 Benchmark]: TraceAbstraction took 681.76ms. Allocated memory is still 289.4MB. Free memory was 199.9MB in the beginning and 243.3MB in the end (delta: -43.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:50:21,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 195.0MB. Free memory was 144.1MB in the beginning and 144.0MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.43ms. Allocated memory is still 289.4MB. Free memory was 238.3MB in the beginning and 226.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.12ms. Allocated memory is still 289.4MB. Free memory was 226.8MB in the beginning and 225.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 605.21ms. Allocated memory is still 289.4MB. Free memory was 225.1MB in the beginning and 200.6MB in the end (delta: 24.5MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 681.76ms. Allocated memory is still 289.4MB. Free memory was 199.9MB in the beginning and 243.3MB in the end (delta: -43.4MB). 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: 100]: 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = __VERIFIER_nondet_float(); [L94] COND TRUE x < -0.0f VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L96] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(x)=2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [\old(x)=2147483648, hx=2147483647, ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [\old(x)=2147483648, hx=2147483647, ix=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L96] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=2147483651, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L96] float res = __ieee754_sqrtf(x); [L99] CALL, EXPR isnan_float(res) VAL [\old(x)=2147483651, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] return x != x; [L99] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=2147483651, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L99] COND TRUE !isnan_float(res) [L100] reach_error() VAL [one_sqrt=1, res=2147483651, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 37 mSDtfsCounter, 7 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=38occurred 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 10:50:21,076 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...