YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:15,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:15,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:15,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:15,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:15,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:15,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:15,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:15,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:15,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:15,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:15,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:15,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:15,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:15,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:15,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:15,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:15,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:15,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:15,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:15,744 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:15,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:15,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:15,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:15,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:15,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:15,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:15,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:15,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:15,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:15,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:15,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:15,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:15,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:15,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:15,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:15,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:15,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:15,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:15,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:15,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:15,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:15,753 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:15,764 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:15,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:15,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:15,765 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:15,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:15,765 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:15,765 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:15,765 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:15,765 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:15,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:15,766 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:15,767 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:15,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:15,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:15,767 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:15,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:15,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:15,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:15,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:15,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:15,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:15,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:15,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:15,913 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:15,913 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:15,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:15,966 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/beab8be3f0184b0d8d1da7b8b86644be/FLAG4bcc55f85 [2023-02-13 03:40:16,313 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:16,313 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,316 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/beab8be3f0184b0d8d1da7b8b86644be/FLAG4bcc55f85 [2023-02-13 03:40:16,759 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/beab8be3f0184b0d8d1da7b8b86644be [2023-02-13 03:40:16,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:16,763 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:16,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:16,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:16,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60364e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16, skipping insertion in model container [2023-02-13 03:40:16,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:16,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:16,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,867 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:16,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:16,881 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:16,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16 WrapperNode [2023-02-13 03:40:16,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:16,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:16,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:16,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,911 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-02-13 03:40:16,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:16,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:16,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:16,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:16,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:16,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:16,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:16,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (1/1) ... [2023-02-13 03:40:16,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:16,950 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:16,962 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 03:40:16,965 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 03:40:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:17,090 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:17,091 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:17,156 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:17,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:17,161 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:17,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17 BoogieIcfgContainer [2023-02-13 03:40:17,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:17,163 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:17,163 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:17,164 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:17,165 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,174 INFO L313 BlockEncoder]: Initial Icfg 11 locations, 16 edges [2023-02-13 03:40:17,174 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:17,175 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:17,175 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:17,175 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:17,176 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:17,176 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:17,176 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:17,184 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:17,192 INFO L200 BlockEncoder]: SBE split 6 edges [2023-02-13 03:40:17,194 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:17,195 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:17,198 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:17,199 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2023-02-13 03:40:17,200 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:17,200 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:17,200 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:17,201 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:17,201 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 16 edges [2023-02-13 03:40:17,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:17 BasicIcfg [2023-02-13 03:40:17,201 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:17,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:17,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:17,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:17,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:17,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fce274d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:17,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fce274d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17" (3/4) ... [2023-02-13 03:40:17,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fce274d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:17" (4/4) ... [2023-02-13 03:40:17,206 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:17,215 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:17,215 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:17,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fce274d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:17,216 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:17,216 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:17,218 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:17,218 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:17,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:16" (1/4) ... [2023-02-13 03:40:17,219 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77065221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:17,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:16" (2/4) ... [2023-02-13 03:40:17,219 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77065221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:17,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17" (3/4) ... [2023-02-13 03:40:17,220 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77065221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:17,220 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:17" (4/4) ... [2023-02-13 03:40:17,220 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:17,248 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:17,249 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:17,249 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:17,249 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:17,249 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:17,249 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:17,249 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:17,249 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:17,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 03:40:17,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:17,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:17,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:17,268 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:17,268 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:17,268 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:17,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 03:40:17,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-13 03:40:17,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:17,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:17,269 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:17,269 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:17,272 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [76] ULTIMATE.startENTRY-->L28-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_12|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_15|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~bn~0#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~an~0#1] 5#L28-2true [2023-02-13 03:40:17,272 INFO L735 eck$LassoCheckResult]: Loop: 5#L28-2true [64] L28-2-->L20: Formula: (and (<= |v_ULTIMATE.start_main_~j~0#1_6| |v_ULTIMATE.start_main_~bn~0#1_6|) (<= |v_ULTIMATE.start_main_~an~0#1_6| |v_ULTIMATE.start_main_~i~0#1_6|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} AuxVars[] AssignedVars[] 7#L20true [54] L20-->L21: Formula: (and (<= |v_ULTIMATE.start_main_~i~0#1_7| |v_ULTIMATE.start_main_~an~0#1_7|) (<= |v_ULTIMATE.start_main_~j~0#1_7| |v_ULTIMATE.start_main_~bn~0#1_7|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_7|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_7|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_7|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_7|} AuxVars[] AssignedVars[] 3#L21true [70] L21-->L28-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~j~0#1_9| 1) |v_ULTIMATE.start_main_~j~0#1_8|) (< |v_ULTIMATE.start_main_#t~nondet4#1_3| 0)) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_3|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_9|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~j~0#1] 5#L28-2true [2023-02-13 03:40:17,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,276 INFO L85 PathProgramCache]: Analyzing trace with hash 107, now seen corresponding path program 1 times [2023-02-13 03:40:17,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,282 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761920526] [2023-02-13 03:40:17,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,327 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash 93039, now seen corresponding path program 1 times [2023-02-13 03:40:17,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,341 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748217234] [2023-02-13 03:40:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,348 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:17,352 INFO L85 PathProgramCache]: Analyzing trace with hash 3250885, now seen corresponding path program 1 times [2023-02-13 03:40:17,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:17,352 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44086901] [2023-02-13 03:40:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:17,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:17,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:17,399 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,400 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:17,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:17,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,400 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,408 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 03:40:17,416 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 03:40:17,418 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 03:40:17,421 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 03:40:17,423 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 03:40:17,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,456 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:17,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,457 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,459 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 03:40:17,460 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 03:40:17,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,472 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 03:40:17,490 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 03:40:17,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,493 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,493 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 03:40:17,495 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 03:40:17,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,505 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,506 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 03:40:17,530 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 03:40:17,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,531 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,532 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 03:40:17,534 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 03:40:17,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,550 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,550 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=6, ULTIMATE.start_main_~an~0#1=6} Honda state: {ULTIMATE.start_main_~i~0#1=6, ULTIMATE.start_main_~an~0#1=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,588 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:40:17,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,589 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,590 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 03:40:17,590 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 03:40:17,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,605 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:17,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet4#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:17,631 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:17,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,632 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,633 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 03:40:17,634 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 03:40:17,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:17,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,667 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:17,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:17,667 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,668 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 03:40:17,669 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 03:40:17,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:17,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:17,769 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:17,771 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 03:40:17,771 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:17,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:17,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:17,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:17,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:17,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:17,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:17,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:17,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:17,773 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:17,776 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 03:40:17,790 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 03:40:17,794 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 03:40:17,798 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 03:40:17,802 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 03:40:17,857 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:17,860 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:17,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,861 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,861 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,865 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:17,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:17,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:17,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:17,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,893 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:17,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,893 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,894 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,895 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:17,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:17,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:17,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:17,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,919 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:17,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,920 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,921 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:17,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:17,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:17,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:17,975 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:40:17,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:17,976 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,976 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:17,977 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:17,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:17,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:17,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:17,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:17,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:17,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:17,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:17,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,016 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:40:18,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,018 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,020 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,025 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:18,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:18,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:18,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:18,041 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:18,045 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:18,045 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:18,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,049 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,050 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,052 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:18,053 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:18,053 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:18,053 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:18,053 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~bn~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 2*ULTIMATE.start_main_~bn~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:18,085 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:40:18,093 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:18,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,151 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,172 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 03:40:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,228 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:18,231 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:18,233 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 03:40:18,291 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Result 28 states and 81 transitions. Complement of second has 7 states. [2023-02-13 03:40:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:18,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 03:40:18,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 62 transitions. [2023-02-13 03:40:18,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:40:18,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:18,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:40:18,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 81 transitions. [2023-02-13 03:40:18,302 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-02-13 03:40:18,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 23 states and 64 transitions. [2023-02-13 03:40:18,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:40:18,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-13 03:40:18,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 64 transitions. [2023-02-13 03:40:18,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:18,306 INFO L220 hiAutomatonCegarLoop]: Abstraction has 23 states and 64 transitions. [2023-02-13 03:40:18,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 64 transitions. [2023-02-13 03:40:18,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2023-02-13 03:40:18,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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 03:40:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 59 transitions. [2023-02-13 03:40:18,321 INFO L242 hiAutomatonCegarLoop]: Abstraction has 21 states and 59 transitions. [2023-02-13 03:40:18,321 INFO L426 stractBuchiCegarLoop]: Abstraction has 21 states and 59 transitions. [2023-02-13 03:40:18,321 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:18,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 59 transitions. [2023-02-13 03:40:18,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-02-13 03:40:18,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,322 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,322 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:18,322 INFO L733 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRY [76] ULTIMATE.startENTRY-->L28-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_12|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_15|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~bn~0#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~an~0#1] 82#L28-2 [62] L28-2-->L20: Formula: (and (<= |v_ULTIMATE.start_main_~i~0#1_6| |v_ULTIMATE.start_main_~an~0#1_6|) (<= |v_ULTIMATE.start_main_~j~0#1_6| |v_ULTIMATE.start_main_~bn~0#1_6|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} AuxVars[] AssignedVars[] 96#L20 [2023-02-13 03:40:18,322 INFO L735 eck$LassoCheckResult]: Loop: 96#L20 [54] L20-->L21: Formula: (and (<= |v_ULTIMATE.start_main_~i~0#1_7| |v_ULTIMATE.start_main_~an~0#1_7|) (<= |v_ULTIMATE.start_main_~j~0#1_7| |v_ULTIMATE.start_main_~bn~0#1_7|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_7|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_7|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_7|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_7|} AuxVars[] AssignedVars[] 83#L21 [44] L21-->L28-2: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet4#1_5| 0) (= |v_ULTIMATE.start_main_~i~0#1_8| (+ |v_ULTIMATE.start_main_~i~0#1_9| 1))) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~i~0#1] 84#L28-2 [64] L28-2-->L20: Formula: (and (<= |v_ULTIMATE.start_main_~j~0#1_6| |v_ULTIMATE.start_main_~bn~0#1_6|) (<= |v_ULTIMATE.start_main_~an~0#1_6| |v_ULTIMATE.start_main_~i~0#1_6|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} AuxVars[] AssignedVars[] 96#L20 [2023-02-13 03:40:18,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,323 INFO L85 PathProgramCache]: Analyzing trace with hash 3379, now seen corresponding path program 1 times [2023-02-13 03:40:18,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,323 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516884248] [2023-02-13 03:40:18,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,326 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,328 INFO L85 PathProgramCache]: Analyzing trace with hash 83113, now seen corresponding path program 1 times [2023-02-13 03:40:18,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,328 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064959189] [2023-02-13 03:40:18,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash 100717111, now seen corresponding path program 1 times [2023-02-13 03:40:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,334 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385455128] [2023-02-13 03:40:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,337 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,353 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,353 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,353 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,353 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:18,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:18,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,353 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,354 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 03:40:18,355 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 03:40:18,359 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 03:40:18,361 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 03:40:18,362 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 03:40:18,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,386 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:18,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,387 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,387 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:40:18,388 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:18,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,396 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,396 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:18,411 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:18,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,412 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,413 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:40:18,415 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:18,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,444 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:18,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,447 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,448 INFO L229 MonitoredProcess]: Starting monitored process 16 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 03:40:18,448 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:40:18,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:18,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,633 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:18,635 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:40:18,635 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,636 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,637 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:18,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,637 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:18,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,638 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,641 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 03:40:18,645 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 03:40:18,654 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 03:40:18,659 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 03:40:18,664 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 03:40:18,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,707 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:18,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,707 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,708 INFO L229 MonitoredProcess]: Starting monitored process 17 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,709 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:40:18,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:18,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:18,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,745 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:40:18,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,746 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,747 INFO L229 MonitoredProcess]: Starting monitored process 18 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,747 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:18,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:18,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:18,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:18,759 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:18,771 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:18,771 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:18,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,772 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,773 INFO L229 MonitoredProcess]: Starting monitored process 19 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:18,775 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:18,775 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:18,775 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:18,775 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0#1, ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~an~0#1 - 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:18,776 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:18,795 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:18,796 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,864 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 03:40:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,904 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:18,905 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:18,905 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 21 states and 59 transitions. cyclomatic complexity: 41 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:40:19,008 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 21 states and 59 transitions. cyclomatic complexity: 41. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Result 161 states and 414 transitions. Complement of second has 19 states. [2023-02-13 03:40:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:40:19,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2023-02-13 03:40:19,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 61 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:40:19,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:19,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 61 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:40:19,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:19,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 61 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:40:19,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:19,015 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 414 transitions. [2023-02-13 03:40:19,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-02-13 03:40:19,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 21 states and 51 transitions. [2023-02-13 03:40:19,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:40:19,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:40:19,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 51 transitions. [2023-02-13 03:40:19,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:19,023 INFO L220 hiAutomatonCegarLoop]: Abstraction has 21 states and 51 transitions. [2023-02-13 03:40:19,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 51 transitions. [2023-02-13 03:40:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-13 03:40:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 20 states have internal predecessors, (51), 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 03:40:19,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 51 transitions. [2023-02-13 03:40:19,026 INFO L242 hiAutomatonCegarLoop]: Abstraction has 21 states and 51 transitions. [2023-02-13 03:40:19,027 INFO L426 stractBuchiCegarLoop]: Abstraction has 21 states and 51 transitions. [2023-02-13 03:40:19,027 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:19,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 51 transitions. [2023-02-13 03:40:19,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-02-13 03:40:19,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:19,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:19,028 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:19,028 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:19,028 INFO L733 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY [76] ULTIMATE.startENTRY-->L28-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_12|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_15|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~bn~0#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~an~0#1] 327#L28-2 [64] L28-2-->L20: Formula: (and (<= |v_ULTIMATE.start_main_~j~0#1_6| |v_ULTIMATE.start_main_~bn~0#1_6|) (<= |v_ULTIMATE.start_main_~an~0#1_6| |v_ULTIMATE.start_main_~i~0#1_6|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} AuxVars[] AssignedVars[] 341#L20 [2023-02-13 03:40:19,029 INFO L735 eck$LassoCheckResult]: Loop: 341#L20 [54] L20-->L21: Formula: (and (<= |v_ULTIMATE.start_main_~i~0#1_7| |v_ULTIMATE.start_main_~an~0#1_7|) (<= |v_ULTIMATE.start_main_~j~0#1_7| |v_ULTIMATE.start_main_~bn~0#1_7|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_7|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_7|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_7|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_7|} AuxVars[] AssignedVars[] 328#L21 [44] L21-->L28-2: Formula: (and (= |v_ULTIMATE.start_main_#t~nondet4#1_5| 0) (= |v_ULTIMATE.start_main_~i~0#1_8| (+ |v_ULTIMATE.start_main_~i~0#1_9| 1))) InVars {ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_5|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_9|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~i~0#1] 329#L28-2 [64] L28-2-->L20: Formula: (and (<= |v_ULTIMATE.start_main_~j~0#1_6| |v_ULTIMATE.start_main_~bn~0#1_6|) (<= |v_ULTIMATE.start_main_~an~0#1_6| |v_ULTIMATE.start_main_~i~0#1_6|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} AuxVars[] AssignedVars[] 341#L20 [2023-02-13 03:40:19,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash 3381, now seen corresponding path program 1 times [2023-02-13 03:40:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:19,029 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889406907] [2023-02-13 03:40:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:19,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:19,033 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:19,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:19,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:19,036 INFO L85 PathProgramCache]: Analyzing trace with hash 83113, now seen corresponding path program 2 times [2023-02-13 03:40:19,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:19,036 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939371590] [2023-02-13 03:40:19,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:19,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:19,039 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:19,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:19,043 INFO L85 PathProgramCache]: Analyzing trace with hash 100776693, now seen corresponding path program 1 times [2023-02-13 03:40:19,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:19,043 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261133935] [2023-02-13 03:40:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:19,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:19,047 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:19,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:19,063 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:19,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:19,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:19,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:19,063 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:19,063 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,063 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:19,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:19,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:19,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:19,064 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:19,064 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 03:40:19,066 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 03:40:19,067 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 03:40:19,069 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 03:40:19,072 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 03:40:19,101 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:19,102 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:19,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,102 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,103 INFO L229 MonitoredProcess]: Starting monitored process 20 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 03:40:19,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,113 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:19,115 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:19,120 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,121 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~bn~0#1=0, ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~bn~0#1=0, ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,129 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:40:19,134 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-13 03:40:19,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,135 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,135 INFO L229 MonitoredProcess]: Starting monitored process 21 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 03:40:19,136 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:19,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,145 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,171 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:40:19,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,171 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,172 INFO L229 MonitoredProcess]: Starting monitored process 22 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 03:40:19,173 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-13 03:40:19,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:19,187 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:19,210 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-13 03:40:19,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,211 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,212 INFO L229 MonitoredProcess]: Starting monitored process 23 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 03:40:19,213 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-13 03:40:19,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:19,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,263 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-13 03:40:19,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:19,264 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,265 INFO L229 MonitoredProcess]: Starting monitored process 24 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 03:40:19,266 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-13 03:40:19,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:19,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:19,474 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:19,476 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:19,476 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:19,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:19,477 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:19,477 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:19,477 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:19,477 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:19,478 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:19,478 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:40:19,478 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:19,478 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:19,480 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 03:40:19,484 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 03:40:19,488 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 03:40:19,490 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 03:40:19,497 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 03:40:19,549 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:19,549 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:19,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,550 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,551 INFO L229 MonitoredProcess]: Starting monitored process 25 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,556 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-13 03:40:19,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:19,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:19,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:19,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:19,605 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-13 03:40:19,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,606 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,608 INFO L229 MonitoredProcess]: Starting monitored process 26 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,609 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-13 03:40:19,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:19,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:19,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:19,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:19,656 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:19,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,657 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,658 INFO L229 MonitoredProcess]: Starting monitored process 27 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,658 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-13 03:40:19,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:19,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:19,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:19,709 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:19,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,710 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,711 INFO L229 MonitoredProcess]: Starting monitored process 28 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,712 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-13 03:40:19,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:19,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:19,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:19,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:19,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:19,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:19,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:19,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:19,727 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:19,730 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:19,730 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:19,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:19,730 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:19,731 INFO L229 MonitoredProcess]: Starting monitored process 29 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:19,733 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-13 03:40:19,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:19,734 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:19,734 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:19,735 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~an~0#1, ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~an~0#1 - 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:19,766 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-13 03:40:19,767 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:19,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:19,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:19,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:19,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:19,839 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 03:40:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:19,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:19,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:19,898 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:40:19,899 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:40:19,899 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 21 states and 51 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:40:19,999 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 21 states and 51 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Result 157 states and 366 transitions. Complement of second has 21 states. [2023-02-13 03:40:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:40:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 56 transitions. [2023-02-13 03:40:20,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:40:20,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:40:20,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:40:20,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 366 transitions. [2023-02-13 03:40:20,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-02-13 03:40:20,012 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 21 states and 43 transitions. [2023-02-13 03:40:20,012 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-13 03:40:20,012 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-13 03:40:20,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 43 transitions. [2023-02-13 03:40:20,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:20,013 INFO L220 hiAutomatonCegarLoop]: Abstraction has 21 states and 43 transitions. [2023-02-13 03:40:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 43 transitions. [2023-02-13 03:40:20,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-13 03:40:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 20 states have internal predecessors, (43), 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 03:40:20,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 43 transitions. [2023-02-13 03:40:20,016 INFO L242 hiAutomatonCegarLoop]: Abstraction has 21 states and 43 transitions. [2023-02-13 03:40:20,016 INFO L426 stractBuchiCegarLoop]: Abstraction has 21 states and 43 transitions. [2023-02-13 03:40:20,016 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:20,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 43 transitions. [2023-02-13 03:40:20,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-02-13 03:40:20,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:20,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:20,017 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:20,017 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:20,018 INFO L733 eck$LassoCheckResult]: Stem: 566#ULTIMATE.startENTRY [76] ULTIMATE.startENTRY-->L28-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet4#1=|v_ULTIMATE.start_main_#t~nondet4#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_15|, ULTIMATE.start_main_#t~nondet3#1=|v_ULTIMATE.start_main_#t~nondet3#1_3|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_12|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_15|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4#1, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~nondet3#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~bn~0#1, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~an~0#1] 567#L28-2 [63] L28-2-->L20: Formula: (and (<= |v_ULTIMATE.start_main_~bn~0#1_6| |v_ULTIMATE.start_main_~j~0#1_6|) (<= |v_ULTIMATE.start_main_~i~0#1_6| |v_ULTIMATE.start_main_~an~0#1_6|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} AuxVars[] AssignedVars[] 581#L20 [2023-02-13 03:40:20,018 INFO L735 eck$LassoCheckResult]: Loop: 581#L20 [68] L20-->L26: Formula: (> |v_ULTIMATE.start_main_~j~0#1_10| |v_ULTIMATE.start_main_~bn~0#1_8|) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_8|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_10|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_8|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_10|} AuxVars[] AssignedVars[] 576#L26 [50] L26-->L28-2: Formula: (and (<= |v_ULTIMATE.start_main_~bn~0#1_9| |v_ULTIMATE.start_main_~j~0#1_11|) (= |v_ULTIMATE.start_main_~i~0#1_11| (+ |v_ULTIMATE.start_main_~i~0#1_12| 1)) (<= |v_ULTIMATE.start_main_~i~0#1_12| |v_ULTIMATE.start_main_~an~0#1_9|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_9|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_11|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_9|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_9|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_11|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_11|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 577#L28-2 [63] L28-2-->L20: Formula: (and (<= |v_ULTIMATE.start_main_~bn~0#1_6| |v_ULTIMATE.start_main_~j~0#1_6|) (<= |v_ULTIMATE.start_main_~i~0#1_6| |v_ULTIMATE.start_main_~an~0#1_6|)) InVars {ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} OutVars{ULTIMATE.start_main_~bn~0#1=|v_ULTIMATE.start_main_~bn~0#1_6|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~an~0#1=|v_ULTIMATE.start_main_~an~0#1_6|} AuxVars[] AssignedVars[] 581#L20 [2023-02-13 03:40:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,019 INFO L85 PathProgramCache]: Analyzing trace with hash 3380, now seen corresponding path program 1 times [2023-02-13 03:40:20,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:20,019 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499673348] [2023-02-13 03:40:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,023 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,026 INFO L85 PathProgramCache]: Analyzing trace with hash 96752, now seen corresponding path program 1 times [2023-02-13 03:40:20,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:20,027 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605456615] [2023-02-13 03:40:20,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,032 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,034 INFO L85 PathProgramCache]: Analyzing trace with hash 100760541, now seen corresponding path program 1 times [2023-02-13 03:40:20,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:20,034 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011484106] [2023-02-13 03:40:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:20,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,037 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:20,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:20,060 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:20,060 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:20,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:20,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:20,060 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:20,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:20,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:20,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:20,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:20,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:20,061 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:20,061 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 03:40:20,063 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 03:40:20,067 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 03:40:20,069 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 03:40:20,103 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:20,103 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:20,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:20,104 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,106 INFO L229 MonitoredProcess]: Starting monitored process 30 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 03:40:20,107 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-13 03:40:20,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:20,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:20,127 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:20,127 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:20,166 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-02-13 03:40:20,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:20,167 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,168 INFO L229 MonitoredProcess]: Starting monitored process 31 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 03:40:20,170 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-13 03:40:20,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:20,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:20,217 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-02-13 03:40:20,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:20,218 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,219 INFO L229 MonitoredProcess]: Starting monitored process 32 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 03:40:20,220 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-13 03:40:20,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:20,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:20,469 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:20,470 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-02-13 03:40:20,471 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:20,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:20,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:20,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:20,472 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:20,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:20,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:20,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2023-02-13 03:40:20,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:20,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:20,475 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 03:40:20,481 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 03:40:20,484 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 03:40:20,486 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 03:40:20,519 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:20,519 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:20,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,520 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,521 INFO L229 MonitoredProcess]: Starting monitored process 33 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,523 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-13 03:40:20,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:20,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:20,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:20,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:20,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:20,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:20,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:20,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:20,539 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:20,545 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:40:20,545 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:20,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:20,546 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:20,546 INFO L229 MonitoredProcess]: Starting monitored process 34 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:20,548 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-13 03:40:20,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:20,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:20,549 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:20,549 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~an~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~an~0#1 Supporting invariants [] [2023-02-13 03:40:20,586 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-02-13 03:40:20,587 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,630 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 03:40:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:20,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:20,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:20,671 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:20,672 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:20,672 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 21 states and 43 transitions. cyclomatic complexity: 25 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:40:20,744 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 21 states and 43 transitions. cyclomatic complexity: 25. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Result 91 states and 179 transitions. Complement of second has 15 states. [2023-02-13 03:40:20,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:20,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:40:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions. [2023-02-13 03:40:20,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 44 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:40:20,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 44 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:40:20,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 44 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:40:20,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:20,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 179 transitions. [2023-02-13 03:40:20,753 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:20,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 0 states and 0 transitions. [2023-02-13 03:40:20,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:20,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:20,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:20,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:20,755 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:20,755 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:20,755 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:20,755 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:40:20,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:20,756 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:20,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:20,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:20 BasicIcfg [2023-02-13 03:40:20,766 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:20,767 INFO L158 Benchmark]: Toolchain (without parser) took 4003.80ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 478.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -397.1MB). Peak memory consumption was 85.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:20,767 INFO L158 Benchmark]: CDTParser took 0.15ms. 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 03:40:20,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 116.38ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:20,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.06ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:20,768 INFO L158 Benchmark]: Boogie Preprocessor took 11.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:20,769 INFO L158 Benchmark]: RCFGBuilder took 238.67ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:20,769 INFO L158 Benchmark]: BlockEncodingV2 took 38.52ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:20,769 INFO L158 Benchmark]: TraceAbstraction took 13.65ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:20,770 INFO L158 Benchmark]: BuchiAutomizer took 3550.19ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 478.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -430.0MB). Peak memory consumption was 51.9MB. Max. memory is 42.9GB. [2023-02-13 03:40:20,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 16 edges - StatisticsResult: Encoded RCFG 6 locations, 16 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 116.38ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 30.06ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 11.16ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 238.67ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 38.52ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * TraceAbstraction took 13.65ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 3550.19ms. Allocated memory was 2.1GB in the beginning and 2.6GB in the end (delta: 478.2MB). Free memory was 2.1GB in the beginning and 2.5GB in the end (delta: -430.0MB). Peak memory consumption was 51.9MB. 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 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -2 * j + 2 * bn + 1 and consists of 5 locations. One nondeterministic module has affine ranking function -2 * i + 2 * an + 1 and consists of 6 locations. One nondeterministic module has affine ranking function -2 * i + 2 * an + 1 and consists of 5 locations. One nondeterministic module has affine ranking function -1 * i + an and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 267 IncrementalHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 17 mSDtfsCounter, 267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:40:20,812 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-02-13 03:40:21,026 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-13 03:40:21,228 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...