/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_1270c.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:47:38,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:47:38,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:47:38,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:47:38,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:47:38,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:47:38,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:47:38,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:47:38,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:47:38,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:47:38,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:47:38,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:47:38,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:47:38,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:47:38,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:47:38,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:47:38,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:47:38,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:47:38,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:47:38,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:47:38,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:47:38,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:47:38,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:47:38,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:47:38,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 04:47:38,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:47:38,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:47:38,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:47:38,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:47:38,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:47:38,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:47:38,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:47:38,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:47:38,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:47:38,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:47:38,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:47:38,929 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 04:47:38,952 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:47:38,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:47:38,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:47:38,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:47:38,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:47:38,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:47:38,954 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:47:38,954 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:47:38,954 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:47:38,954 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:47:38,955 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:47:38,955 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:47:38,955 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:47:38,955 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:47:38,955 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:47:38,955 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:47:38,955 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:47:38,955 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:47:38,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:47:38,956 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:47:38,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:47:38,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:47:38,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:47:38,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:47:38,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:47:38,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:47:38,957 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:47:38,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:38,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:47:38,958 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:47:38,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:47:38,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:47:38,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:47:38,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:47:39,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:47:39,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:47:39,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:47:39,181 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:47:39,181 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:47:39,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2023-04-01 04:47:40,183 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:47:40,373 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:47:40,373 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2023-04-01 04:47:40,383 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf3364ab0/62c57e87ed3a40a88554093ae2e05c60/FLAG08b6b7b2f [2023-04-01 04:47:40,393 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf3364ab0/62c57e87ed3a40a88554093ae2e05c60 [2023-04-01 04:47:40,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:47:40,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:47:40,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:40,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:47:40,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:47:40,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f632223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40, skipping insertion in model container [2023-04-01 04:47:40,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:47:40,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:47:40,576 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_1270c.c[4703,4716] [2023-04-01 04:47:40,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:40,587 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:47:40,622 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_1270c.c[4703,4716] [2023-04-01 04:47:40,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:40,633 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:47:40,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40 WrapperNode [2023-04-01 04:47:40,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:40,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:47:40,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:47:40,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:47:40,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,687 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:47:40,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:47:40,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:47:40,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:47:40,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (1/1) ... [2023-04-01 04:47:40,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:40,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:47:40,725 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 04:47:40,727 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 04:47:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:47:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:47:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:47:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-04-01 04:47:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2023-04-01 04:47:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2023-04-01 04:47:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 04:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:47:40,846 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:47:40,848 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:47:41,228 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:47:41,331 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:47:41,331 INFO L302 CfgBuilder]: Removed 34 assume(true) statements. [2023-04-01 04:47:41,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:41 BoogieIcfgContainer [2023-04-01 04:47:41,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:47:41,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:47:41,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:47:41,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:47:41,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:47:40" (1/3) ... [2023-04-01 04:47:41,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8341ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:41, skipping insertion in model container [2023-04-01 04:47:41,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:40" (2/3) ... [2023-04-01 04:47:41,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8341ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:41, skipping insertion in model container [2023-04-01 04:47:41,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:41" (3/3) ... [2023-04-01 04:47:41,343 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270c.c [2023-04-01 04:47:41,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:47:41,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:47:41,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:47:41,410 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;@771b106d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:47:41,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:47:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 75 states have (on average 1.6533333333333333) internal successors, (124), 76 states have internal predecessors, (124), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-01 04:47:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-01 04:47:41,420 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:41,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:47:41,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:41,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:41,425 INFO L85 PathProgramCache]: Analyzing trace with hash -87433248, now seen corresponding path program 1 times [2023-04-01 04:47:41,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:41,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831136036] [2023-04-01 04:47:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:41,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:47:41,542 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 04:47:41,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:47:41,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831136036] [2023-04-01 04:47:41,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831136036] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:47:41,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:47:41,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:47:41,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417007352] [2023-04-01 04:47:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:47:41,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:47:41,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:47:41,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:47:41,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:47:41,572 INFO L87 Difference]: Start difference. First operand has 88 states, 75 states have (on average 1.6533333333333333) internal successors, (124), 76 states have internal predecessors, (124), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 04:47:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:47:41,613 INFO L93 Difference]: Finished difference Result 169 states and 268 transitions. [2023-04-01 04:47:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:47:41,615 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 25 [2023-04-01 04:47:41,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:47:41,621 INFO L225 Difference]: With dead ends: 169 [2023-04-01 04:47:41,621 INFO L226 Difference]: Without dead ends: 84 [2023-04-01 04:47:41,624 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 04:47:41,626 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:47:41,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:47:41,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-04-01 04:47:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-04-01 04:47:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 73 states have internal predecessors, (87), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-01 04:47:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2023-04-01 04:47:41,664 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 25 [2023-04-01 04:47:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:47:41,665 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2023-04-01 04:47:41,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 04:47:41,665 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2023-04-01 04:47:41,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-04-01 04:47:41,666 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:41,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:47:41,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:47:41,667 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:41,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:41,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1152227645, now seen corresponding path program 1 times [2023-04-01 04:47:41,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:41,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054549079] [2023-04-01 04:47:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:41,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:41,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 04:47:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:41,826 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 04:47:41,826 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 04:47:41,827 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:47:41,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:47:41,832 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 04:47:41,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:47:41,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:47:41 BoogieIcfgContainer [2023-04-01 04:47:41,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:47:41,853 INFO L158 Benchmark]: Toolchain (without parser) took 1456.75ms. Allocated memory was 182.5MB in the beginning and 277.9MB in the end (delta: 95.4MB). Free memory was 129.9MB in the beginning and 186.7MB in the end (delta: -56.9MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. [2023-04-01 04:47:41,853 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 135.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:47:41,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 182.5MB. Free memory was 129.8MB in the beginning and 115.9MB in the end (delta: 13.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-01 04:47:41,854 INFO L158 Benchmark]: Boogie Preprocessor took 62.95ms. Allocated memory is still 182.5MB. Free memory was 115.9MB in the beginning and 113.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 04:47:41,855 INFO L158 Benchmark]: RCFGBuilder took 637.92ms. Allocated memory was 182.5MB in the beginning and 277.9MB in the end (delta: 95.4MB). Free memory was 113.2MB in the beginning and 226.0MB in the end (delta: -112.9MB). Peak memory consumption was 23.3MB. Max. memory is 8.0GB. [2023-04-01 04:47:41,855 INFO L158 Benchmark]: TraceAbstraction took 514.65ms. Allocated memory is still 277.9MB. Free memory was 225.5MB in the beginning and 186.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-04-01 04:47:41,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 135.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 182.5MB. Free memory was 129.8MB in the beginning and 115.9MB in the end (delta: 13.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.95ms. Allocated memory is still 182.5MB. Free memory was 115.9MB in the beginning and 113.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 637.92ms. Allocated memory was 182.5MB in the beginning and 277.9MB in the end (delta: 95.4MB). Free memory was 113.2MB in the beginning and 226.0MB in the end (delta: -112.9MB). Peak memory consumption was 23.3MB. Max. memory is 8.0GB. * TraceAbstraction took 514.65ms. Allocated memory is still 277.9MB. Free memory was 225.5MB in the beginning and 186.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. 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: 237]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = __VERIFIER_nondet_float(); [L232] float y = 1.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243] [L234] CALL, EXPR __ieee754_hypotf(x, y) VAL [\old(x)=251658243, \old(y)=251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=251658243, \old(y)=251658243, a=251658243, b=251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658243] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=251658243, \old(y)=251658243, a=251658243, b=251658243, ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658243] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=251658243, \old(y)=251658243, a=251658243, b=251658243, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658243] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=251658243, \old(y)=251658243, a=251658242, b=251658245, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658243] [L234] RET, EXPR __ieee754_hypotf(x, y) VAL [__ieee754_hypotf(x, y)=251658244, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658243] [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) VAL [\old(x)=251658244, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L214] __int32_t ix; VAL [\old(x)=251658244, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L236] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, one_sqrt=1, res=251658244, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658243] [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, res=251658244, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658243] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 93 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 93 mSDtfsCounter, 9 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=88occurred 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, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 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 04:47:41,871 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...