NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:30,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:30,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:30,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:30,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:30,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:30,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:30,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:30,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:30,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:30,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:30,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:30,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:30,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:30,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:30,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:30,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:30,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:30,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:30,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:30,932 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:30,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:30,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:30,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:30,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:30,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:30,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:30,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:30,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:30,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:30,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:30,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:30,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:30,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:30,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:30,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:30,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:30,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:30,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:30,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:30,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:30,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:30,941 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:30,952 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:30,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:30,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:30,953 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:30,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:30,953 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:30,953 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:30,953 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:30,953 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:30,953 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:30,953 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:30,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:30,954 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:30,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:30,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:30,955 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:30,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:30,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:30,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:30,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:30,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:31,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:31,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:31,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:31,099 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:31,099 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:31,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:31,141 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/a8092c13325f4844ade0cfa6e8091041/FLAG65ab546b2 [2023-02-13 03:40:31,470 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:31,470 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:31,475 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/a8092c13325f4844ade0cfa6e8091041/FLAG65ab546b2 [2023-02-13 03:40:31,937 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/a8092c13325f4844ade0cfa6e8091041 [2023-02-13 03:40:31,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:31,942 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:31,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:31,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:31,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:31,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:31" (1/1) ... [2023-02-13 03:40:31,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72debaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:31, skipping insertion in model container [2023-02-13 03:40:31,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:31" (1/1) ... [2023-02-13 03:40:31,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:31,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:32,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:32,048 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:32,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:32,060 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:32,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32 WrapperNode [2023-02-13 03:40:32,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:32,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:32,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:32,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:32,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,083 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-13 03:40:32,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:32,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:32,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:32,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:32,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:32,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:32,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:32,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:32,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:32,109 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:32,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:32,119 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:32,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:32,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:32,219 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:32,221 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:32,284 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:32,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:32,289 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-13 03:40:32,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32 BoogieIcfgContainer [2023-02-13 03:40:32,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:32,290 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:32,291 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:32,292 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:32,292 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,300 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2023-02-13 03:40:32,301 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:32,301 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:32,301 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:32,302 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:32,302 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:32,302 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:32,303 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:32,310 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:32,316 INFO L200 BlockEncoder]: SBE split 3 edges [2023-02-13 03:40:32,318 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2023-02-13 03:40:32,319 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:32,322 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:32,323 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2023-02-13 03:40:32,324 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:32,324 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:32,324 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:32,324 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:32,325 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2023-02-13 03:40:32,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:32 BasicIcfg [2023-02-13 03:40:32,325 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:32,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:32,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:32,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:32,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:31" (1/4) ... [2023-02-13 03:40:32,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa2a600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (2/4) ... [2023-02-13 03:40:32,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa2a600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32" (3/4) ... [2023-02-13 03:40:32,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa2a600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:32" (4/4) ... [2023-02-13 03:40:32,329 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:32,338 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:32,338 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:32,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa2a600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:32,339 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:32,339 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:32,341 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:32,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:31" (1/4) ... [2023-02-13 03:40:32,342 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@627295bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (2/4) ... [2023-02-13 03:40:32,342 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@627295bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32" (3/4) ... [2023-02-13 03:40:32,342 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@627295bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:32" (4/4) ... [2023-02-13 03:40:32,343 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:32,369 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:32,369 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:32,369 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:32,369 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:32,370 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:32,370 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:32,370 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:32,370 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:32,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:32,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:32,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:32,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:32,386 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:32,386 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:32,386 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:32,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:32,387 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:32,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:32,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:32,387 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:32,387 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:32,390 INFO L733 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [62] ULTIMATE.startENTRY-->L13-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_8|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 5#L13-2true [2023-02-13 03:40:32,390 INFO L735 eck$LassoCheckResult]: Loop: 5#L13-2true [58] L13-2-->L17: Formula: (and (= |v_ULTIMATE.start_main_~xtmp~0#1_3| |v_ULTIMATE.start_main_~x~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|) (< |v_ULTIMATE.start_main_~y~0#1_5| 0) (= |v_ULTIMATE.start_main_~tmp~0#1_3| |v_ULTIMATE.start_main_~y~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_3|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_3|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~xtmp~0#1] 2#L17true [37] L17-->L21-3: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_6| 0) (= |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 3#L21-3true [39] L21-3-->L13-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~xtmp~0#1_7|) (= |v_ULTIMATE.start_main_~tmp~0#1_4| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 5#L13-2true [2023-02-13 03:40:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,394 INFO L85 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2023-02-13 03:40:32,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,399 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126461823] [2023-02-13 03:40:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,443 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,455 INFO L85 PathProgramCache]: Analyzing trace with hash 86715, now seen corresponding path program 1 times [2023-02-13 03:40:32,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,456 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015225508] [2023-02-13 03:40:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:32,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:32,481 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015225508] [2023-02-13 03:40:32,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015225508] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:32,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:32,481 ERROR L191 FreeRefinementEngine]: {11#true} [12#false, 12#false] {12#false} [2023-02-13 03:40:32,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:40:32,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560239685] [2023-02-13 03:40:32,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:32,484 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:32,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:32,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-13 03:40:32,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-13 03:40:32,505 INFO L87 Difference]: Start difference. First operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 1 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:32,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:32,519 INFO L93 Difference]: Finished difference Result 5 states and 8 transitions. [2023-02-13 03:40:32,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 8 transitions. [2023-02-13 03:40:32,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:32,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 8 transitions. [2023-02-13 03:40:32,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:40:32,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:32,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8 transitions. [2023-02-13 03:40:32,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:32,527 INFO L220 hiAutomatonCegarLoop]: Abstraction has 5 states and 8 transitions. [2023-02-13 03:40:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 8 transitions. [2023-02-13 03:40:32,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-13 03:40:32,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2023-02-13 03:40:32,544 INFO L242 hiAutomatonCegarLoop]: Abstraction has 5 states and 8 transitions. [2023-02-13 03:40:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-13 03:40:32,550 INFO L426 stractBuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2023-02-13 03:40:32,550 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:32,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2023-02-13 03:40:32,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:32,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:32,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:32,551 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:32,551 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:32,551 INFO L733 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRY [62] ULTIMATE.startENTRY-->L13-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_12|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_8|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 19#L13-2 [2023-02-13 03:40:32,551 INFO L735 eck$LassoCheckResult]: Loop: 19#L13-2 [59] L13-2-->L17: Formula: (and (= |v_ULTIMATE.start_main_~xtmp~0#1_3| |v_ULTIMATE.start_main_~x~0#1_5|) (> |v_ULTIMATE.start_main_~y~0#1_5| 0) (<= 0 |v_ULTIMATE.start_main_~y~0#1_5|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_5|) (= |v_ULTIMATE.start_main_~tmp~0#1_3| |v_ULTIMATE.start_main_~y~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_3|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_3|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~xtmp~0#1] 20#L17 [37] L17-->L21-3: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_6| 0) (= |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 18#L21-3 [39] L21-3-->L13-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_11| |v_ULTIMATE.start_main_~xtmp~0#1_7|) (= |v_ULTIMATE.start_main_~tmp~0#1_4| |v_ULTIMATE.start_main_~x~0#1_8|)) InVars {ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~tmp~0#1=|v_ULTIMATE.start_main_~tmp~0#1_4|, ULTIMATE.start_main_~xtmp~0#1=|v_ULTIMATE.start_main_~xtmp~0#1_7|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1] 19#L13-2 [2023-02-13 03:40:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 2 times [2023-02-13 03:40:32,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,552 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469683595] [2023-02-13 03:40:32,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,554 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,557 INFO L85 PathProgramCache]: Analyzing trace with hash 87676, now seen corresponding path program 1 times [2023-02-13 03:40:32,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,557 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530562580] [2023-02-13 03:40:32,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,563 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2828448, now seen corresponding path program 1 times [2023-02-13 03:40:32,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,568 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808351025] [2023-02-13 03:40:32,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,572 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:32 BasicIcfg [2023-02-13 03:40:32,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:32,642 INFO L158 Benchmark]: Toolchain (without parser) took 699.94ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 64.7MB). Peak memory consumption was 67.1MB. Max. memory is 42.9GB. [2023-02-13 03:40:32,642 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:32,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 117.14ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:32,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.53ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:32,643 INFO L158 Benchmark]: Boogie Preprocessor took 9.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:32,643 INFO L158 Benchmark]: RCFGBuilder took 197.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:32,644 INFO L158 Benchmark]: BlockEncodingV2 took 34.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:32,644 INFO L158 Benchmark]: TraceAbstraction took 13.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:32,644 INFO L158 Benchmark]: BuchiAutomizer took 302.25ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 42.9GB. [2023-02-13 03:40:32,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 9 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 117.14ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 21.53ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 9.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 197.22ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 34.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 302.25ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40fcc01c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b370b47=0, tmp=1, x=1, xtmp=1, y=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int x; [L7] int y; [L8] int tmp; [L9] int xtmp; [L10] x = __VERIFIER_nondet_int() [L11] y = __VERIFIER_nondet_int() Loop: [L13] COND TRUE (y != 0 && x >= 0) && y >= 0 [L14] tmp = y [L15] xtmp = x [L17] COND TRUE x == y [L18] y = 0 [L26] y = xtmp [L27] x = tmp End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:40:32,675 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...