/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_1121b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:47:04,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:47:04,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:47:04,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:47:04,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:47:04,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:47:04,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:47:04,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:47:04,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:47:04,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:47:04,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:47:04,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:47:04,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:47:04,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:47:04,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:47:04,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:47:04,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:47:04,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:47:04,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:47:04,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:47:04,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:47:04,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:47:04,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:47:04,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:47:04,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:47:04,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:47:04,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:47:04,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:47:04,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:47:04,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:47:04,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:47:04,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:47:04,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:47:04,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:47:04,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:47:04,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:47:04,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:47:04,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:47:04,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:47:04,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:47:04,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:47:04,837 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 22:47:04,858 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:47:04,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:47:04,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:47:04,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:47:04,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:47:04,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:47:04,859 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:47:04,859 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:47:04,859 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:47:04,860 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:47:04,860 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:47:04,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:47:04,861 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:47:04,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:47:04,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:47:04,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:47:04,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:47:04,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:47:04,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:47:04,862 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:47:04,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:47:04,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:47:04,863 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:47:04,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:47:04,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:47:04,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:47:04,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:47:05,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:47:05,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:47:05,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:47:05,074 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:47:05,074 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:47:05,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-03-31 22:47:06,106 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:47:06,265 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:47:06,265 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-03-31 22:47:06,272 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6f4e527/127efc6960574fd984b2fff293180e25/FLAG73a50b090 [2023-03-31 22:47:06,286 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6f4e527/127efc6960574fd984b2fff293180e25 [2023-03-31 22:47:06,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:47:06,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:47:06,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:47:06,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:47:06,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:47:06,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a92776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06, skipping insertion in model container [2023-03-31 22:47:06,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:47:06,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:47:06,517 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_1121b.c[2700,2713] [2023-03-31 22:47:06,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:47:06,526 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:47:06,563 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_1121b.c[2700,2713] [2023-03-31 22:47:06,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:47:06,578 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:47:06,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06 WrapperNode [2023-03-31 22:47:06,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:47:06,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:47:06,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:47:06,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:47:06,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,618 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:47:06,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:47:06,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:47:06,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:47:06,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (1/1) ... [2023-03-31 22:47:06,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:47:06,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:47:06,673 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 22:47:06,678 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 22:47:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:47:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:47:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:47:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2023-03-31 22:47:06,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-03-31 22:47:06,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 22:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-03-31 22:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:47:06,763 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:47:06,764 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:47:07,087 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:47:07,254 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:47:07,254 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-03-31 22:47:07,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:47:07 BoogieIcfgContainer [2023-03-31 22:47:07,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:47:07,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:47:07,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:47:07,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:47:07,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:47:06" (1/3) ... [2023-03-31 22:47:07,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139b6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:47:07, skipping insertion in model container [2023-03-31 22:47:07,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:47:06" (2/3) ... [2023-03-31 22:47:07,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139b6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:47:07, skipping insertion in model container [2023-03-31 22:47:07,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:47:07" (3/3) ... [2023-03-31 22:47:07,263 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2023-03-31 22:47:07,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:47:07,281 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:47:07,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:47:07,336 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;@7b6ef69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:47:07,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:47:07,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 38 states have (on average 1.631578947368421) internal successors, (62), 39 states have internal predecessors, (62), 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 22:47:07,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-03-31 22:47:07,348 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:47:07,349 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 22:47:07,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:47:07,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:47:07,356 INFO L85 PathProgramCache]: Analyzing trace with hash 199288624, now seen corresponding path program 1 times [2023-03-31 22:47:07,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:47:07,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834431796] [2023-03-31 22:47:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:47:07,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:47:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:47:07,553 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 22:47:07,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:47:07,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834431796] [2023-03-31 22:47:07,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834431796] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:47:07,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:47:07,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:47:07,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892776078] [2023-03-31 22:47:07,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:47:07,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:47:07,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:47:07,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:47:07,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:47:07,585 INFO L87 Difference]: Start difference. First operand has 48 states, 38 states have (on average 1.631578947368421) internal successors, (62), 39 states have internal predecessors, (62), 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) [2023-03-31 22:47:07,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:47:07,649 INFO L93 Difference]: Finished difference Result 89 states and 133 transitions. [2023-03-31 22:47:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:47:07,651 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 [2023-03-31 22:47:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:47:07,657 INFO L225 Difference]: With dead ends: 89 [2023-03-31 22:47:07,657 INFO L226 Difference]: Without dead ends: 44 [2023-03-31 22:47:07,659 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 22:47:07,661 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 22:47:07,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 22:47:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-03-31 22:47:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-03-31 22:47:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 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 22:47:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2023-03-31 22:47:07,690 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 20 [2023-03-31 22:47:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:47:07,691 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2023-03-31 22:47:07,691 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) [2023-03-31 22:47:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2023-03-31 22:47:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-03-31 22:47:07,692 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:47:07,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:47:07,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:47:07,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:47:07,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:47:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 873714803, now seen corresponding path program 1 times [2023-03-31 22:47:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:47:07,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208669576] [2023-03-31 22:47:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:47:07,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:47:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:47:07,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 22:47:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:47:07,841 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 22:47:07,841 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 22:47:07,842 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 22:47:07,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:47:07,851 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 22:47:07,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:47:07,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:47:07 BoogieIcfgContainer [2023-03-31 22:47:07,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:47:07,876 INFO L158 Benchmark]: Toolchain (without parser) took 1587.28ms. Allocated memory is still 361.8MB. Free memory was 308.6MB in the beginning and 213.2MB in the end (delta: 95.4MB). Peak memory consumption was 95.4MB. Max. memory is 8.0GB. [2023-03-31 22:47:07,876 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:47:07,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.32ms. Allocated memory is still 361.8MB. Free memory was 308.6MB in the beginning and 296.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 22:47:07,880 INFO L158 Benchmark]: Boogie Preprocessor took 41.64ms. Allocated memory is still 361.8MB. Free memory was 296.6MB in the beginning and 294.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 22:47:07,881 INFO L158 Benchmark]: RCFGBuilder took 634.86ms. Allocated memory is still 361.8MB. Free memory was 294.0MB in the beginning and 248.9MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2023-03-31 22:47:07,881 INFO L158 Benchmark]: TraceAbstraction took 617.14ms. Allocated memory is still 361.8MB. Free memory was 248.3MB in the beginning and 213.2MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-03-31 22:47:07,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 289.32ms. Allocated memory is still 361.8MB. Free memory was 308.6MB in the beginning and 296.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.64ms. Allocated memory is still 361.8MB. Free memory was 296.6MB in the beginning and 294.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 634.86ms. Allocated memory is still 361.8MB. Free memory was 294.0MB in the beginning and 248.9MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * TraceAbstraction took 617.14ms. Allocated memory is still 361.8MB. Free memory was 248.3MB in the beginning and 213.2MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. 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: 124]: 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 110, overapproximation of bitwiseOr at line 33, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L118] float x = __VERIFIER_nondet_float(); [L119] float y = -0.0f; VAL [Zero_fmod={4:0}, one_fmod=1, x=2147483655] [L120] CALL, EXPR fmod_float(x, y) VAL [Zero_fmod={4:0}, \old(x)=2147483655, \old(y)=2147483657, one_fmod=1] [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, \old(x)=2147483655, \old(y)=2147483657, one_fmod=1, x=2147483655, y=2147483657] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, \old(x)=2147483655, \old(y)=2147483657, hx=2139095040, hy=0, one_fmod=1, sx=-2147483648, x=2147483655, y=2147483657] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, \old(x)=2147483655, \old(y)=2147483657, hx=2139095040, hy=0, one_fmod=1, sx=-2147483648, x=2147483655, y=2147483657] [L120] RET, EXPR fmod_float(x, y) VAL [Zero_fmod={4:0}, fmod_float(x, y)=2147483656, one_fmod=1, x=2147483655, y=2147483657] [L120] float res = fmod_float(x, y); [L123] CALL, EXPR isnan_float(res) VAL [Zero_fmod={4:0}, \old(x)=2147483656, one_fmod=1] [L110] return x != x; [L123] RET, EXPR isnan_float(res) VAL [Zero_fmod={4:0}, isnan_float(res)=0, one_fmod=1, res=2147483656, x=2147483655, y=2147483657] [L123] COND TRUE !isnan_float(res) [L124] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=2147483656, x=2147483655, y=2147483657] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 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, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 14 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=48occurred 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, 42 NumberOfCodeBlocks, 42 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 [2023-03-31 22:47:07,905 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...