/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 00:47:45,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 00:47:45,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 00:47:45,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 00:47:45,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 00:47:45,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 00:47:45,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 00:47:45,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 00:47:45,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 00:47:45,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 00:47:45,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 00:47:45,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 00:47:45,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 00:47:45,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 00:47:45,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 00:47:45,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 00:47:45,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 00:47:45,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 00:47:45,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 00:47:45,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 00:47:45,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 00:47:45,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 00:47:45,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 00:47:45,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 00:47:45,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 00:47:45,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 00:47:45,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 00:47:45,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 00:47:45,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 00:47:45,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 00:47:45,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 00:47:45,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 00:47:45,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 00:47:45,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 00:47:45,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 00:47:45,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 00:47:45,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 00:47:45,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 00:47:45,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 00:47:45,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 00:47:45,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 00:47:45,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 00:47:45,996 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 00:47:45,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 00:47:45,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 00:47:45,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 00:47:45,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 00:47:45,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 00:47:45,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 00:47:45,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 00:47:45,998 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 00:47:45,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 00:47:45,999 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 00:47:45,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 00:47:45,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 00:47:45,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 00:47:45,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 00:47:45,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 00:47:45,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 00:47:46,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:47:46,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 00:47:46,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 00:47:46,001 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 00:47:46,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 00:47:46,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 00:47:46,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 00:47:46,214 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 00:47:46,216 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 00:47:46,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2023-04-02 00:47:47,177 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 00:47:47,383 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 00:47:47,383 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2023-04-02 00:47:47,389 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ab2716a/721962e78915404081d3501edb974940/FLAG2b57d115f [2023-04-02 00:47:47,403 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ab2716a/721962e78915404081d3501edb974940 [2023-04-02 00:47:47,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 00:47:47,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 00:47:47,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 00:47:47,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 00:47:47,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 00:47:47,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc5ad21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47, skipping insertion in model container [2023-04-02 00:47:47,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 00:47:47,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 00:47:47,587 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_1130a.c[2907,2920] [2023-04-02 00:47:47,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:47:47,596 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 00:47:47,616 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_1130a.c[2907,2920] [2023-04-02 00:47:47,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:47:47,627 INFO L208 MainTranslator]: Completed translation [2023-04-02 00:47:47,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47 WrapperNode [2023-04-02 00:47:47,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 00:47:47,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 00:47:47,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 00:47:47,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 00:47:47,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,673 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 00:47:47,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 00:47:47,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 00:47:47,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 00:47:47,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (1/1) ... [2023-04-02 00:47:47,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:47:47,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 00:47:47,708 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) [2023-04-02 00:47:47,710 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 [2023-04-02 00:47:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 00:47:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 00:47:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 00:47:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2023-04-02 00:47:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2023-04-02 00:47:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 00:47:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 00:47:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2023-04-02 00:47:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 00:47:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 00:47:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 00:47:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-04-02 00:47:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 00:47:47,873 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 00:47:47,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 00:47:48,281 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 00:47:48,287 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 00:47:48,287 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-04-02 00:47:48,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:47:48 BoogieIcfgContainer [2023-04-02 00:47:48,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 00:47:48,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 00:47:48,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 00:47:48,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 00:47:48,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 12:47:47" (1/3) ... [2023-04-02 00:47:48,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdb20fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:47:48, skipping insertion in model container [2023-04-02 00:47:48,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:47" (2/3) ... [2023-04-02 00:47:48,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdb20fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:47:48, skipping insertion in model container [2023-04-02 00:47:48,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:47:48" (3/3) ... [2023-04-02 00:47:48,294 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130a.c [2023-04-02 00:47:48,308 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 00:47:48,308 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 00:47:48,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 00:47:48,381 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=PETRI_NET, 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;@26a59a6b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 00:47:48,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 00:47:48,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 76 states have (on average 1.6578947368421053) internal successors, (126), 77 states have internal predecessors, (126), 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) [2023-04-02 00:47:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-02 00:47:48,391 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:47:48,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:47:48,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:47:48,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:47:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash -476185070, now seen corresponding path program 1 times [2023-04-02 00:47:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:47:48,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311634145] [2023-04-02 00:47:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:47:48,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:47:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:47:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 00:47:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:47:48,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:47:48,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311634145] [2023-04-02 00:47:48,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311634145] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:47:48,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:47:48,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 00:47:48,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432138713] [2023-04-02 00:47:48,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:47:48,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 00:47:48,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:47:48,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 00:47:48,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 00:47:48,668 INFO L87 Difference]: Start difference. First operand has 86 states, 76 states have (on average 1.6578947368421053) internal successors, (126), 77 states have internal predecessors, (126), 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 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 00:47:48,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:47:48,951 INFO L93 Difference]: Finished difference Result 166 states and 262 transitions. [2023-04-02 00:47:48,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 00:47:48,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-04-02 00:47:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:47:48,960 INFO L225 Difference]: With dead ends: 166 [2023-04-02 00:47:48,960 INFO L226 Difference]: Without dead ends: 81 [2023-04-02 00:47:48,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 00:47:48,967 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 118 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 00:47:48,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 7 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 00:47:48,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-04-02 00:47:48,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-04-02 00:47:48,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 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) [2023-04-02 00:47:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 111 transitions. [2023-04-02 00:47:48,999 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 111 transitions. Word has length 21 [2023-04-02 00:47:49,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:47:49,000 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 111 transitions. [2023-04-02 00:47:49,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 00:47:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 111 transitions. [2023-04-02 00:47:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-02 00:47:49,001 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:47:49,001 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] [2023-04-02 00:47:49,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 00:47:49,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:47:49,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:47:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash -983984177, now seen corresponding path program 1 times [2023-04-02 00:47:49,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:47:49,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379695707] [2023-04-02 00:47:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:47:49,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:47:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:47:49,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 00:47:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:47:49,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 00:47:49,124 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 00:47:49,126 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 00:47:49,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 00:47:49,129 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 00:47:49,131 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 00:47:49,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 12:47:49 BoogieIcfgContainer [2023-04-02 00:47:49,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 00:47:49,160 INFO L158 Benchmark]: Toolchain (without parser) took 1752.20ms. Allocated memory was 199.2MB in the beginning and 337.6MB in the end (delta: 138.4MB). Free memory was 147.8MB in the beginning and 262.7MB in the end (delta: -114.9MB). Peak memory consumption was 25.1MB. Max. memory is 8.0GB. [2023-04-02 00:47:49,160 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:47:49,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.38ms. Allocated memory is still 199.2MB. Free memory was 147.4MB in the beginning and 135.2MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 00:47:49,161 INFO L158 Benchmark]: Boogie Preprocessor took 48.67ms. Allocated memory is still 199.2MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 00:47:49,161 INFO L158 Benchmark]: RCFGBuilder took 611.09ms. Allocated memory is still 199.2MB. Free memory was 132.8MB in the beginning and 110.7MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-04-02 00:47:49,162 INFO L158 Benchmark]: TraceAbstraction took 868.95ms. Allocated memory was 199.2MB in the beginning and 337.6MB in the end (delta: 138.4MB). Free memory was 110.0MB in the beginning and 262.7MB in the end (delta: -152.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:47:49,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.38ms. Allocated memory is still 199.2MB. Free memory was 147.4MB in the beginning and 135.2MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.67ms. Allocated memory is still 199.2MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 611.09ms. Allocated memory is still 199.2MB. Free memory was 132.8MB in the beginning and 110.7MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 868.95ms. Allocated memory was 199.2MB in the beginning and 337.6MB in the end (delta: 138.4MB). Free memory was 110.0MB in the beginning and 262.7MB in the end (delta: -152.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 137]: 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 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [Zero_fmod={4:0}, \old(Zero_fmod)={2147483652:2147483650}, \old(one_fmod)=2147483653, one_fmod=1] [L128] float x = 0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) VAL [Zero_fmod={4:0}, one_fmod=1, x=0] [L133] CALL, EXPR fmod_float(x, y) VAL [Zero_fmod={4:0}, \old(x)=0, \old(y)=2147483654, one_fmod=1] [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, \old(x)=0, \old(y)=2147483654, one_fmod=1, x=0, y=2147483654] [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 VAL [Zero_fmod={4:0}, \old(x)=0, \old(y)=2147483654, hx=0, hy=-2147483648, one_fmod=1, sx=0, x=0, y=2147483654] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, \old(x)=0, \old(y)=2147483654, hx=0, hy=0, one_fmod=1, sx=0, x=0, y=2147483654] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, \old(x)=0, \old(y)=2147483654, hx=0, hy=0, one_fmod=1, sx=0, x=0, y=2147483654] [L133] RET, EXPR fmod_float(x, y) VAL [Zero_fmod={4:0}, fmod_float(x, y)=2147483655, one_fmod=1, x=0, y=2147483654] [L133] float res = fmod_float(x, y); [L136] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Zero_fmod={4:0}, one_fmod=1, res == 0.0f && __signbit_float(res) == 0=0, res=2147483655, x=0, y=2147483654] [L136] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L137] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=2147483655, x=0, y=2147483654] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 221 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 5 mSDtfsCounter, 221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 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 [2023-04-02 00:47:49,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...