/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:47:27,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:47:27,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:47:27,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:47:27,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:47:27,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:47:27,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:47:27,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:47:27,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:47:27,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:47:27,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:47:27,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:47:27,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:47:27,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:47:27,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:47:27,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:47:27,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:47:27,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:47:27,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:47:27,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:47:27,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:47:27,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:47:27,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:47:27,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:47:27,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 04:47:27,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:47:27,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:47:27,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:47:27,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:47:27,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:47:27,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:47:27,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:47:27,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:47:27,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:47:27,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:47:27,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:47:27,886 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 04:47:27,897 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:47:27,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:47:27,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:47:27,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:47:27,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:47:27,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:47:27,899 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:47:27,899 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:47:27,899 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:47:27,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:47:27,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:47:27,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:27,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:47:27,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:47:27,902 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:47:27,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:47:27,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:47:27,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:47:27,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:47:28,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:47:28,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:47:28,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:47:28,100 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:47:28,100 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:47:28,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-04-01 04:47:29,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:47:29,529 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:47:29,529 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-04-01 04:47:29,535 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a8674e6/444037f940be4b14aa66a1c230eb470f/FLAGba3666d04 [2023-04-01 04:47:29,547 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a8674e6/444037f940be4b14aa66a1c230eb470f [2023-04-01 04:47:29,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:47:29,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:47:29,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:29,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:47:29,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:47:29,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506ebbb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29, skipping insertion in model container [2023-04-01 04:47:29,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:47:29,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:47:29,730 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] [2023-04-01 04:47:29,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:29,749 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:47:29,806 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] [2023-04-01 04:47:29,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:29,840 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:47:29,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29 WrapperNode [2023-04-01 04:47:29,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:29,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:47:29,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:47:29,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:47:29,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:47:29,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:47:29,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:47:29,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:47:29,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (1/1) ... [2023-04-01 04:47:29,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:29,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:47:29,959 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 04:47:29,979 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 04:47:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:47:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:47:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:47:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2023-04-01 04:47:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-04-01 04:47:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:47:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 04:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-04-01 04:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:47:30,105 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:47:30,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:47:30,507 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:47:30,673 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:47:30,673 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-04-01 04:47:30,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:30 BoogieIcfgContainer [2023-04-01 04:47:30,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:47:30,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:47:30,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:47:30,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:47:30,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:47:29" (1/3) ... [2023-04-01 04:47:30,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642f8282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:30, skipping insertion in model container [2023-04-01 04:47:30,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:29" (2/3) ... [2023-04-01 04:47:30,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642f8282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:30, skipping insertion in model container [2023-04-01 04:47:30,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:30" (3/3) ... [2023-04-01 04:47:30,682 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2023-04-01 04:47:30,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:47:30,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:47:30,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:47:30,730 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;@103f9145, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:47:30,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:47:30,735 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) [2023-04-01 04:47:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-01 04:47:30,741 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:30,741 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 04:47:30,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:30,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:30,745 INFO L85 PathProgramCache]: Analyzing trace with hash 199288624, now seen corresponding path program 1 times [2023-04-01 04:47:30,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:30,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194704499] [2023-04-01 04:47:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:30,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:47:30,899 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 04:47:30,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:47:30,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194704499] [2023-04-01 04:47:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194704499] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:47:30,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:47:30,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:47:30,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695648355] [2023-04-01 04:47:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:47:30,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:47:30,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:47:30,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:47:30,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:47:30,925 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) [2023-04-01 04:47:30,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:47:30,985 INFO L93 Difference]: Finished difference Result 89 states and 133 transitions. [2023-04-01 04:47:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:47:30,988 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 04:47:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:47:30,993 INFO L225 Difference]: With dead ends: 89 [2023-04-01 04:47:30,993 INFO L226 Difference]: Without dead ends: 44 [2023-04-01 04:47:30,995 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 04:47:30,998 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 [2023-04-01 04:47:30,998 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] [2023-04-01 04:47:31,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-04-01 04:47:31,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-04-01 04:47:31,021 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) [2023-04-01 04:47:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2023-04-01 04:47:31,023 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 20 [2023-04-01 04:47:31,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:47:31,024 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2023-04-01 04:47:31,024 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 04:47:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2023-04-01 04:47:31,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-01 04:47:31,025 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:31,025 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] [2023-04-01 04:47:31,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:47:31,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:31,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash 873714803, now seen corresponding path program 1 times [2023-04-01 04:47:31,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:31,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944190429] [2023-04-01 04:47:31,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:31,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:31,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 04:47:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:31,213 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 04:47:31,214 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 04:47:31,215 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:47:31,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:47:31,218 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 04:47:31,237 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:47:31,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:47:31 BoogieIcfgContainer [2023-04-01 04:47:31,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:47:31,267 INFO L158 Benchmark]: Toolchain (without parser) took 1716.87ms. Allocated memory was 217.1MB in the beginning and 274.7MB in the end (delta: 57.7MB). Free memory was 152.3MB in the beginning and 235.5MB in the end (delta: -83.2MB). Peak memory consumption was 48.9MB. Max. memory is 8.0GB. [2023-04-01 04:47:31,267 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory was 165.0MB in the beginning and 164.9MB in the end (delta: 156.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:47:31,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.70ms. Allocated memory is still 217.1MB. Free memory was 152.0MB in the beginning and 139.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 04:47:31,268 INFO L158 Benchmark]: Boogie Preprocessor took 78.02ms. Allocated memory is still 217.1MB. Free memory was 139.9MB in the beginning and 137.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 04:47:31,268 INFO L158 Benchmark]: RCFGBuilder took 744.04ms. Allocated memory was 217.1MB in the beginning and 274.7MB in the end (delta: 57.7MB). Free memory was 137.7MB in the beginning and 199.8MB in the end (delta: -62.2MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2023-04-01 04:47:31,268 INFO L158 Benchmark]: TraceAbstraction took 588.39ms. Allocated memory is still 274.7MB. Free memory was 199.3MB in the beginning and 235.5MB in the end (delta: -36.2MB). Peak memory consumption was 37.2MB. Max. memory is 8.0GB. [2023-04-01 04:47:31,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory was 165.0MB in the beginning and 164.9MB in the end (delta: 156.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.70ms. Allocated memory is still 217.1MB. Free memory was 152.0MB in the beginning and 139.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.02ms. Allocated memory is still 217.1MB. Free memory was 139.9MB in the beginning and 137.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 744.04ms. Allocated memory was 217.1MB in the beginning and 274.7MB in the end (delta: 57.7MB). Free memory was 137.7MB in the beginning and 199.8MB in the end (delta: -62.2MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * TraceAbstraction took 588.39ms. Allocated memory is still 274.7MB. Free memory was 199.3MB in the beginning and 235.5MB in the end (delta: -36.2MB). Peak memory consumption was 37.2MB. 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 [2023-04-01 04:47:31,296 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...