/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_0720.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:46:36,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:46:36,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:46:36,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:46:36,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:46:36,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:46:36,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:46:36,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:46:36,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:46:36,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:46:36,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:46:36,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:46:36,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:46:36,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:46:36,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:46:36,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:46:36,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:46:36,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:46:36,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:46:36,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:46:36,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:46:36,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:46:36,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:46:36,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:46:36,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:46:36,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:46:36,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:46:36,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:46:36,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:46:36,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:46:36,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:46:36,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:46:36,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:46:36,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:46:36,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:46:36,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:46:36,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:46:36,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:46:36,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:46:36,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:46:36,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:46:36,928 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 22:46:36,946 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:46:36,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:46:36,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:46:36,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:46:36,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:46:36,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:46:36,947 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:46:36,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:46:36,947 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:46:36,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:46:36,948 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:46:36,948 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:46:36,948 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:46:36,948 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:46:36,948 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:46:36,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:46:36,949 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:46:36,949 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:46:36,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:46:36,949 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:46:36,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:46:36,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:46:36,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:46:36,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:46:36,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:46:36,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:46:36,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:46:37,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:46:37,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:46:37,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:46:37,139 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:46:37,139 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:46:37,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2023-03-31 22:46:38,153 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:46:38,379 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:46:38,380 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2023-03-31 22:46:38,389 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b99f895/07a90bd574da4f6aac104f1f4ed9759a/FLAG54e268f08 [2023-03-31 22:46:38,785 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b99f895/07a90bd574da4f6aac104f1f4ed9759a [2023-03-31 22:46:38,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:46:38,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:46:38,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:46:38,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:46:38,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:46:38,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:38,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438eb56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38, skipping insertion in model container [2023-03-31 22:46:38,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:38,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:46:38,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:46:38,959 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_0720.c[1929,1942] [2023-03-31 22:46:38,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:46:38,967 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:46:38,987 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_0720.c[1929,1942] [2023-03-31 22:46:38,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:46:38,997 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:46:38,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38 WrapperNode [2023-03-31 22:46:38,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:46:38,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:46:38,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:46:38,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:46:39,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:46:39,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:46:39,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:46:39,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:46:39,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (1/1) ... [2023-03-31 22:46:39,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:46:39,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:46:39,074 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 22:46:39,076 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 22:46:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:46:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:46:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:46:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-03-31 22:46:39,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-03-31 22:46:39,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:46:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:46:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 22:46:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:46:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:46:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:46:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:46:39,183 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:46:39,185 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:46:39,456 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:46:39,579 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:46:39,580 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-03-31 22:46:39,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:46:39 BoogieIcfgContainer [2023-03-31 22:46:39,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:46:39,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:46:39,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:46:39,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:46:39,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:46:38" (1/3) ... [2023-03-31 22:46:39,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a080215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:46:39, skipping insertion in model container [2023-03-31 22:46:39,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:38" (2/3) ... [2023-03-31 22:46:39,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a080215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:46:39, skipping insertion in model container [2023-03-31 22:46:39,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:46:39" (3/3) ... [2023-03-31 22:46:39,588 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2023-03-31 22:46:39,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:46:39,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:46:39,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:46:39,633 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;@35a71d3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:46:39,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:46:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 26 states have (on average 1.5) internal successors, (39), 27 states have internal predecessors, (39), 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) [2023-03-31 22:46:39,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-03-31 22:46:39,640 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:46:39,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:46:39,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:46:39,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:46:39,644 INFO L85 PathProgramCache]: Analyzing trace with hash -531843667, now seen corresponding path program 1 times [2023-03-31 22:46:39,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:46:39,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871858433] [2023-03-31 22:46:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:46:39,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:46:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:46:39,775 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 22:46:39,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:46:39,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871858433] [2023-03-31 22:46:39,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871858433] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:46:39,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:46:39,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:46:39,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530155802] [2023-03-31 22:46:39,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:46:39,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:46:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:46:39,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:46:39,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:46:39,801 INFO L87 Difference]: Start difference. First operand has 36 states, 26 states have (on average 1.5) internal successors, (39), 27 states have internal predecessors, (39), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-03-31 22:46:39,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:46:39,825 INFO L93 Difference]: Finished difference Result 65 states and 87 transitions. [2023-03-31 22:46:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:46:39,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 19 [2023-03-31 22:46:39,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:46:39,831 INFO L225 Difference]: With dead ends: 65 [2023-03-31 22:46:39,831 INFO L226 Difference]: Without dead ends: 32 [2023-03-31 22:46:39,833 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 22:46:39,835 INFO L413 NwaCegarLoop]: 34 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, 34 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 [2023-03-31 22:46:39,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 22:46:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-03-31 22:46:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-03-31 22:46:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 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) [2023-03-31 22:46:39,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2023-03-31 22:46:39,857 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2023-03-31 22:46:39,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:46:39,857 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2023-03-31 22:46:39,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-03-31 22:46:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-03-31 22:46:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-03-31 22:46:39,858 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:46:39,858 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] [2023-03-31 22:46:39,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:46:39,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:46:39,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:46:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1145303529, now seen corresponding path program 1 times [2023-03-31 22:46:39,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:46:39,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749806292] [2023-03-31 22:46:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:46:39,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:46:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:46:39,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 22:46:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:46:39,928 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 22:46:39,928 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 22:46:39,929 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 22:46:39,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:46:39,932 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 22:46:39,934 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:46:39,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:46:39 BoogieIcfgContainer [2023-03-31 22:46:39,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:46:39,946 INFO L158 Benchmark]: Toolchain (without parser) took 1158.15ms. Allocated memory is still 390.1MB. Free memory was 347.3MB in the beginning and 279.7MB in the end (delta: 67.6MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-03-31 22:46:39,946 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 204.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:46:39,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.77ms. Allocated memory is still 390.1MB. Free memory was 347.3MB in the beginning and 335.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 22:46:39,947 INFO L158 Benchmark]: Boogie Preprocessor took 24.02ms. Allocated memory is still 390.1MB. Free memory was 335.8MB in the beginning and 334.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 22:46:39,947 INFO L158 Benchmark]: RCFGBuilder took 559.28ms. Allocated memory is still 390.1MB. Free memory was 334.2MB in the beginning and 309.6MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-03-31 22:46:39,948 INFO L158 Benchmark]: TraceAbstraction took 362.90ms. Allocated memory is still 390.1MB. Free memory was 309.1MB in the beginning and 279.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-03-31 22:46:39,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 204.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 205.77ms. Allocated memory is still 390.1MB. Free memory was 347.3MB in the beginning and 335.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.02ms. Allocated memory is still 390.1MB. Free memory was 335.8MB in the beginning and 334.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 559.28ms. Allocated memory is still 390.1MB. Free memory was 334.2MB in the beginning and 309.6MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 362.90ms. Allocated memory is still 390.1MB. Free memory was 309.1MB in the beginning and 279.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 98]: 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 = 0.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] 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] [L94] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=2147483649, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L94] float res = __ieee754_sqrtf(x); [L97] CALL, EXPR isnan_float(res) VAL [\old(x)=2147483649, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] return x != x; [L97] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=2147483649, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] [L97] COND TRUE !isnan_float(res) [L98] reach_error() VAL [one_sqrt=1, res=2147483649, tiny_sqrt=1/1000000000000000000000000000000, x=2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 34 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, 34 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=36occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 22:46:39,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...