NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:01,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:01,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:01,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:01,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:01,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:01,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:01,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:01,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:01,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:01,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:01,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:01,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:01,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:01,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:01,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:01,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:01,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:01,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:01,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:01,717 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:01,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:01,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:01,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:01,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:01,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:01,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:01,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:01,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:01,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:01,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:01,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:01,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:01,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:01,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:01,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:01,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:01,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:01,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:01,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:01,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:01,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:01,728 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:01,739 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:01,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:01,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:01,740 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:01,740 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:01,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:01,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:01,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:01,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:01,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:01,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:01,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:01,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:01,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:01,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:01,885 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:01,886 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:01,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:01,931 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/dc763f1174444dd08e8a4f6e509a037c/FLAG2fd0865f5 [2023-02-13 03:40:02,291 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:02,292 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:02,295 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/dc763f1174444dd08e8a4f6e509a037c/FLAG2fd0865f5 [2023-02-13 03:40:02,740 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/dc763f1174444dd08e8a4f6e509a037c [2023-02-13 03:40:02,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:02,744 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:02,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:02,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:02,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:02,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea0e820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02, skipping insertion in model container [2023-02-13 03:40:02,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:02,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:02,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:02,867 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:02,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:02,880 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:02,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02 WrapperNode [2023-02-13 03:40:02,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:02,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:02,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:02,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:02,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,906 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2023-02-13 03:40:02,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:02,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:02,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:02,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:02,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:02,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:02,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:02,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:02,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (1/1) ... [2023-02-13 03:40:02,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:02,931 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:02,939 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 03:40:02,949 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 03:40:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:03,061 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:03,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:03,119 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:03,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:03,126 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:03,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:03 BoogieIcfgContainer [2023-02-13 03:40:03,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:03,129 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:03,129 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:03,130 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:03,131 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:03" (1/1) ... [2023-02-13 03:40:03,147 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2023-02-13 03:40:03,149 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:03,149 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:03,150 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:03,150 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:03,151 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:03,151 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:03,152 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:03,159 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:03,162 INFO L200 BlockEncoder]: SBE split 0 edges [2023-02-13 03:40:03,164 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:03,165 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:03,179 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:40:03,182 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:40:03,183 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:03,184 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:03,184 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:03,184 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:03,185 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2023-02-13 03:40:03,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:03 BasicIcfg [2023-02-13 03:40:03,185 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:03,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:03,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:03,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:03,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:02" (1/4) ... [2023-02-13 03:40:03,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6684dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:03, skipping insertion in model container [2023-02-13 03:40:03,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (2/4) ... [2023-02-13 03:40:03,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6684dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:03, skipping insertion in model container [2023-02-13 03:40:03,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:03" (3/4) ... [2023-02-13 03:40:03,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6684dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:03, skipping insertion in model container [2023-02-13 03:40:03,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:03" (4/4) ... [2023-02-13 03:40:03,194 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:03,207 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:03,207 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:03,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6684dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:03, skipping insertion in model container [2023-02-13 03:40:03,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:03,208 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:03,209 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:03,211 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:03,211 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:03,211 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:02" (1/4) ... [2023-02-13 03:40:03,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44540aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:03, skipping insertion in model container [2023-02-13 03:40:03,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:03,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:02" (2/4) ... [2023-02-13 03:40:03,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44540aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:03, skipping insertion in model container [2023-02-13 03:40:03,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:03,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:03" (3/4) ... [2023-02-13 03:40:03,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44540aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:03, skipping insertion in model container [2023-02-13 03:40:03,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:03,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:03" (4/4) ... [2023-02-13 03:40:03,213 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:03,238 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:03,238 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:03,238 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:03,239 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:03,239 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:03,239 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:03,239 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:03,239 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:03,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 03:40:03,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:03,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:03,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:03,253 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:03,253 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:03,253 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:03,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 03:40:03,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:03,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:03,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:03,254 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:03,254 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:03,257 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [28] ULTIMATE.startENTRY-->L9-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet0#1] 3#L9-2true [2023-02-13 03:40:03,257 INFO L735 eck$LassoCheckResult]: Loop: 3#L9-2true [23] L9-2-->L9-2: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_5| (+ (- 1) |v_ULTIMATE.start_main_~i~0#1_6|)) (< |v_ULTIMATE.start_main_~i~0#1_6| 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 3#L9-2true [2023-02-13 03:40:03,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,260 INFO L85 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2023-02-13 03:40:03,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,265 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556612286] [2023-02-13 03:40:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,307 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,318 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2023-02-13 03:40:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,319 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27088394] [2023-02-13 03:40:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,324 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:03,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1852, now seen corresponding path program 1 times [2023-02-13 03:40:03,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:03,328 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493230114] [2023-02-13 03:40:03,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:03,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:03,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:03,359 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:03,359 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:03,359 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:03,359 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:03,359 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:03,359 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,359 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:03,360 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:03,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:03,360 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:03,360 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:03,368 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,375 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,403 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:03,403 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:03,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,405 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,414 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:03,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,426 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,426 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,442 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,442 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,451 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:03,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,462 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,462 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,481 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:03,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,481 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,483 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:03,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,506 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,508 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,509 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,510 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:03,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:03,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,537 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=-1} Honda state: {ULTIMATE.start_main_~i~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=-1}, {ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=0}] Lambdas: [1, 0, 3] Nus: [1, 0] [2023-02-13 03:40:03,551 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:03,554 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:03,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:03,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:03,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:03,555 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:03,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:03,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:03,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2023-02-13 03:40:03,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:03,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:03,556 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,559 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,563 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,564 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:03,589 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:03,589 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:03,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,590 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,593 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:03,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,616 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,616 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,617 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,618 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:03,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,628 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,652 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:03,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,652 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,653 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,655 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:03,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,680 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:03,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,680 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,682 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,683 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:03,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:03,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,707 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,707 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=-1} Honda state: {ULTIMATE.start_main_~i~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=-1}, {ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=0}] Lambdas: [1, 0, 3] Nus: [1, 0] [2023-02-13 03:40:03,725 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,727 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,730 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:03,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,753 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,767 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:03,769 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:03,783 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:03,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:03,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:03,798 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:03,798 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:03,815 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:03,823 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,824 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,825 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,825 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,825 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,825 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:03 BasicIcfg [2023-02-13 03:40:03,830 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:03,831 INFO L158 Benchmark]: Toolchain (without parser) took 1086.24ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: -4.9MB). Peak memory consumption was 82.6MB. Max. memory is 42.9GB. [2023-02-13 03:40:03,831 INFO L158 Benchmark]: CDTParser took 0.17ms. 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 03:40:03,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 134.57ms. 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 03:40:03,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.64ms. 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 03:40:03,832 INFO L158 Benchmark]: Boogie Preprocessor took 9.84ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:03,832 INFO L158 Benchmark]: RCFGBuilder took 211.30ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:03,832 INFO L158 Benchmark]: BlockEncodingV2 took 56.68ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:03,833 INFO L158 Benchmark]: TraceAbstraction took 20.23ms. 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 03:40:03,833 INFO L158 Benchmark]: BuchiAutomizer took 621.46ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: -34.1MB). Peak memory consumption was 49.1MB. Max. memory is 42.9GB. [2023-02-13 03:40:03,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 8 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 134.57ms. 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. * Boogie Procedure Inliner took 25.64ms. 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 9.84ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 211.30ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 56.68ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 20.23ms. 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 621.46ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: -34.1MB). Peak memory consumption was 49.1MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 9]: Nontermination argument in form of an infinite program execution. [2023-02-13 03:40:03,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-13 03:40:03,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-13 03:40:03,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {i=-1, ~unnamed0~0~true=1, ~unnamed0~0~false=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@738f473e=0, \result=0} State at position 1 is {i=-1, ~unnamed0~0~true=1, ~unnamed0~0~false=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@738f473e=0, \result=0} For i>1, the state at position i is {i=-1 + sum_{k=0}^i -1, ~unnamed0~0~true=1 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@738f473e=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 0, 3] Mus: [1, 0] - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i < 0 [L10] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:40:03,857 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Ended with exit code 0 Received shutdown request...