YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:32,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:32,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:32,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:32,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:32,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:32,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:32,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:32,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:32,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:32,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:32,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:32,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:32,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:32,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:32,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:32,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:32,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:32,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:32,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:32,119 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:32,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:32,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:32,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:32,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:32,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:32,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:32,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:32,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:32,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:32,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:32,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:32,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:32,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:32,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:32,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:32,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:32,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:32,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:32,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:32,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:32,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:32,127 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:32,138 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:32,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:32,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:32,139 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:32,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:32,139 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:32,140 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:32,140 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:32,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:32,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:32,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:32,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:32,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:32,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:32,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:32,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:32,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:32,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:32,288 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:32,289 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:32,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:32,329 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/ea339ba7ae4a472a8aa773b761e8db4f/FLAG5317ebc65 [2023-02-13 03:40:32,674 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:32,675 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:32,679 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/ea339ba7ae4a472a8aa773b761e8db4f/FLAG5317ebc65 [2023-02-13 03:40:32,694 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/ea339ba7ae4a472a8aa773b761e8db4f [2023-02-13 03:40:32,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:32,697 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:32,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:32,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:32,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:32,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719e9a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:32,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:32,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:32,799 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:32,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:32,812 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:32,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32 WrapperNode [2023-02-13 03:40:32,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:32,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:32,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:32,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:32,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,834 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-13 03:40:32,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:32,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:32,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:32,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:32,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:32,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:32,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:32,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:32,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:32,856 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:32,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:32,869 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:32,960 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:32,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:33,007 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:33,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:33,012 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:33,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:33 BoogieIcfgContainer [2023-02-13 03:40:33,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:33,014 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:33,014 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:33,015 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:33,016 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:33" (1/1) ... [2023-02-13 03:40:33,029 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2023-02-13 03:40:33,030 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:33,030 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:33,030 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:33,031 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:33,031 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:33,032 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:33,032 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:33,039 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:33,044 INFO L200 BlockEncoder]: SBE split 1 edges [2023-02-13 03:40:33,046 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:33,046 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:33,050 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:33,050 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2023-02-13 03:40:33,051 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:33,051 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:33,052 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2023-02-13 03:40:33,052 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:33,052 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:33,053 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:33,053 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:33,053 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:33,053 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2023-02-13 03:40:33,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:33 BasicIcfg [2023-02-13 03:40:33,053 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:33,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:33,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:33,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:33,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:32" (1/4) ... [2023-02-13 03:40:33,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206dc31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (2/4) ... [2023-02-13 03:40:33,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206dc31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:33" (3/4) ... [2023-02-13 03:40:33,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206dc31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:33" (4/4) ... [2023-02-13 03:40:33,058 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:33,067 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:33,067 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:33,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206dc31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:33,068 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:33,068 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:33,070 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:33,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:33,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:32" (1/4) ... [2023-02-13 03:40:33,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45edbca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:33,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (2/4) ... [2023-02-13 03:40:33,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45edbca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:33,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:33" (3/4) ... [2023-02-13 03:40:33,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45edbca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:33, skipping insertion in model container [2023-02-13 03:40:33,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:33,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:33" (4/4) ... [2023-02-13 03:40:33,072 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:33,099 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:33,099 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:33,099 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:33,100 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:33,100 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:33,100 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:33,100 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:33,100 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:33,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. 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 03:40:33,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:33,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:33,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:33,114 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:33,114 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:33,114 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:33,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. 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 03:40:33,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:33,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:33,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:33,115 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:33,115 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:33,118 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [51] ULTIMATE.startENTRY-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_~m~0#1_10| |v_ULTIMATE.start_main_~n~0#1_8|) (< 0 |v_ULTIMATE.start_main_~m~0#1_10|) (= |v_ULTIMATE.start_main_~i~0#1_12| |v_ULTIMATE.start_main_~n~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_10|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_5|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_5|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 3#L20-2true [2023-02-13 03:40:33,118 INFO L735 eck$LassoCheckResult]: Loop: 3#L20-2true [37] L20-2-->L20: Formula: (< 0 |v_ULTIMATE.start_main_~i~0#1_9|) InVars {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_9|} AuxVars[] AssignedVars[] 4#L20true [40] L20-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_~i~0#1_2| |v_ULTIMATE.start_main_~m~0#1_1|) (= |v_ULTIMATE.start_main_~i~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~i~0#1_2|))) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_2|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_1|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_1|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 3#L20-2true [2023-02-13 03:40:33,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,122 INFO L85 PathProgramCache]: Analyzing trace with hash 82, now seen corresponding path program 1 times [2023-02-13 03:40:33,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,127 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535068840] [2023-02-13 03:40:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,175 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2148, now seen corresponding path program 1 times [2023-02-13 03:40:33,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,189 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000692350] [2023-02-13 03:40:33,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,193 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash 79989, now seen corresponding path program 1 times [2023-02-13 03:40:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,196 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40741580] [2023-02-13 03:40:33,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:33,233 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 03:40:33,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:33,233 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40741580] [2023-02-13 03:40:33,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40741580] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:33,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:33,234 ERROR L191 FreeRefinementEngine]: {11#true} [13#(<= (+ |ULTIMATE.start_main_~m~0#1| 1) |ULTIMATE.start_main_~i~0#1|), 13#(<= (+ |ULTIMATE.start_main_~m~0#1| 1) |ULTIMATE.start_main_~i~0#1|)] {12#false} [2023-02-13 03:40:33,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:40:33,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832064831] [2023-02-13 03:40:33,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:33,259 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:33,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:33,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:33,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:33,260 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:33,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:33,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:33,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:33,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:33,260 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:33,268 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 03:40:33,274 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 03:40:33,277 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 03:40:33,308 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:33,309 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:33,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,310 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,311 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 03:40:33,316 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 03:40:33,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:33,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,330 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:33,330 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 03:40:33,348 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 03:40:33,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,348 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,349 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 03:40:33,351 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 03:40:33,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:33,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,363 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:33,363 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 03:40:33,387 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 03:40:33,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,388 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,389 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 03:40:33,391 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 03:40:33,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:33,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,428 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 03:40:33,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,430 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,431 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 03:40:33,432 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 03:40:33,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:33,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,469 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:33,472 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:33,472 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:33,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:33,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:33,473 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:33,473 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:33,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:33,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:33,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:33,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:33,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:33,476 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 03:40:33,481 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 03:40:33,485 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 03:40:33,509 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:33,511 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:33,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,512 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,513 INFO L229 MonitoredProcess]: Starting monitored process 6 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 03:40:33,525 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:33,533 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 03:40:33,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:33,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:33,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:33,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:33,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:33,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:33,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:33,574 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:33,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,575 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,575 INFO L229 MonitoredProcess]: Starting monitored process 7 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 03:40:33,576 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:33,576 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 03:40:33,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:33,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:33,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:33,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:33,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:33,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:33,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:33,602 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:33,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,604 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,605 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 03:40:33,606 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 03:40:33,607 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 03:40:33,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:33,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:33,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:33,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:33,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:33,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:33,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:33,627 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:33,635 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:33,635 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:33,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,637 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,638 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 03:40:33,640 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 03:40:33,640 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:33,640 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:33,640 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:33,641 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-13 03:40:33,677 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 03:40:33,684 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:33,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:33,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:33,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:33,716 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:33,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:33,732 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 03:40:33,759 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:33,762 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 2 loop predicates [2023-02-13 03:40:33,763 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:33,793 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First 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). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 10 transitions. Complement of second has 5 states. [2023-02-13 03:40:33,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2023-02-13 03:40:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:33,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-13 03:40:33,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:40:33,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:33,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:33,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:33,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:40:33,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:33,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2023-02-13 03:40:33,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:33,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:33,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:33,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:33,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2023-02-13 03:40:33,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:33,812 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:33,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2023-02-13 03:40:33,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-02-13 03:40:33,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 03:40:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:33,825 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:33,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:33,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:33,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:33,828 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:33,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:33,837 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2023-02-13 03:40:33,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 7 transitions. [2023-02-13 03:40:33,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:33,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 6 transitions. [2023-02-13 03:40:33,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:40:33,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:33,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2023-02-13 03:40:33,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:33,839 INFO L220 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-13 03:40:33,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2023-02-13 03:40:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-13 03:40:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 03:40:33,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2023-02-13 03:40:33,841 INFO L242 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-13 03:40:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:33,842 INFO L426 stractBuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-13 03:40:33,842 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:33,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2023-02-13 03:40:33,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:40:33,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:33,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:33,843 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:33,843 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:33,843 INFO L733 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_~m~0#1_10| |v_ULTIMATE.start_main_~n~0#1_8|) (< 0 |v_ULTIMATE.start_main_~m~0#1_10|) (= |v_ULTIMATE.start_main_~i~0#1_12| |v_ULTIMATE.start_main_~n~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_10|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_5|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_5|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 61#L20-2 [37] L20-2-->L20: Formula: (< 0 |v_ULTIMATE.start_main_~i~0#1_9|) InVars {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_9|} AuxVars[] AssignedVars[] 64#L20 [45] L20-->L20-2: Formula: (and (>= |v_ULTIMATE.start_main_~i~0#1_6| |v_ULTIMATE.start_main_~m~0#1_5|) (= (+ |v_ULTIMATE.start_main_~i~0#1_6| (* (- 1) |v_ULTIMATE.start_main_~m~0#1_5|)) |v_ULTIMATE.start_main_~i~0#1_5|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 62#L20-2 [2023-02-13 03:40:33,843 INFO L735 eck$LassoCheckResult]: Loop: 62#L20-2 [37] L20-2-->L20: Formula: (< 0 |v_ULTIMATE.start_main_~i~0#1_9|) InVars {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_9|} AuxVars[] AssignedVars[] 63#L20 [40] L20-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_~i~0#1_2| |v_ULTIMATE.start_main_~m~0#1_1|) (= |v_ULTIMATE.start_main_~i~0#1_1| (+ (- 1) |v_ULTIMATE.start_main_~i~0#1_2|))) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_2|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_1|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_1|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 62#L20-2 [2023-02-13 03:40:33,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,844 INFO L85 PathProgramCache]: Analyzing trace with hash 79994, now seen corresponding path program 1 times [2023-02-13 03:40:33,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,844 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067504777] [2023-02-13 03:40:33,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,852 INFO L85 PathProgramCache]: Analyzing trace with hash 2148, now seen corresponding path program 2 times [2023-02-13 03:40:33,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,852 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590767575] [2023-02-13 03:40:33,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,855 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,857 INFO L85 PathProgramCache]: Analyzing trace with hash 76875421, now seen corresponding path program 1 times [2023-02-13 03:40:33,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,857 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477809036] [2023-02-13 03:40:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,861 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,875 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:33,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:33,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:33,875 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:33,875 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:33,875 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,875 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:33,875 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:33,875 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:33,875 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:33,875 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:33,876 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 03:40:33,878 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 03:40:33,879 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 03:40:33,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:33,899 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:33,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,900 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,900 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:33,903 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:33,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:33,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,911 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:33,911 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 03:40:33,925 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:33,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,926 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,926 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:33,928 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:33,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:33,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,937 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:33,938 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:33,960 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:33,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,961 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,962 INFO L229 MonitoredProcess]: Starting monitored process 12 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 03:40:33,963 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:33,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:33,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,988 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:40:33,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:33,989 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,990 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:40:33,992 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:33,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:33,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:34,045 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:34,047 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:40:34,048 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:34,048 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:34,049 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:34,049 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:34,049 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:34,049 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,050 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:34,050 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:34,050 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:34,050 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:34,051 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:34,053 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 03:40:34,056 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 03:40:34,066 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 03:40:34,112 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:34,113 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:34,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,114 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:40:34,116 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:34,116 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 03:40:34,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:34,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:34,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:34,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:34,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:34,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:34,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:34,175 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:34,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,176 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,177 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:40:34,179 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:40:34,179 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 03:40:34,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:34,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:34,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:34,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:34,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:34,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:34,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:34,226 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-13 03:40:34,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,227 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,228 INFO L229 MonitoredProcess]: Starting monitored process 16 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 03:40:34,229 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:40:34,230 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 03:40:34,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:34,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:34,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:34,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:34,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:34,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:34,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:34,243 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:34,247 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:34,248 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:40:34,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,248 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,249 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 03:40:34,251 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 03:40:34,251 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:34,252 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:34,252 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:34,252 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-02-13 03:40:34,288 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:40:34,288 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:34,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:34,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:34,318 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:34,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:34,330 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 03:40:34,337 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:40:34,337 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 2 loop predicates [2023-02-13 03:40:34,338 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 03:40:34,346 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 7 states and 9 transitions. Complement of second has 4 states. [2023-02-13 03:40:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 03:40:34,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-13 03:40:34,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:34,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:34,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-13 03:40:34,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:34,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-13 03:40:34,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:34,348 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. [2023-02-13 03:40:34,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:34,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 9 transitions. [2023-02-13 03:40:34,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:40:34,349 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:34,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2023-02-13 03:40:34,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:34,349 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-13 03:40:34,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2023-02-13 03:40:34,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2023-02-13 03:40:34,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:34,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2023-02-13 03:40:34,350 INFO L242 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-13 03:40:34,350 INFO L426 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-13 03:40:34,350 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:34,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2023-02-13 03:40:34,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:34,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:34,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:34,351 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:34,351 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:34,351 INFO L733 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L20-2: Formula: (and (< |v_ULTIMATE.start_main_~m~0#1_10| |v_ULTIMATE.start_main_~n~0#1_8|) (< 0 |v_ULTIMATE.start_main_~m~0#1_10|) (= |v_ULTIMATE.start_main_~i~0#1_12| |v_ULTIMATE.start_main_~n~0#1_8|)) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~n~0#1=|v_ULTIMATE.start_main_~n~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_10|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_5|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_5|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1, ULTIMATE.start_main_~m~0#1] 108#L20-2 [37] L20-2-->L20: Formula: (< 0 |v_ULTIMATE.start_main_~i~0#1_9|) InVars {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_9|} AuxVars[] AssignedVars[] 109#L20 [2023-02-13 03:40:34,351 INFO L735 eck$LassoCheckResult]: Loop: 109#L20 [45] L20-->L20-2: Formula: (and (>= |v_ULTIMATE.start_main_~i~0#1_6| |v_ULTIMATE.start_main_~m~0#1_5|) (= (+ |v_ULTIMATE.start_main_~i~0#1_6| (* (- 1) |v_ULTIMATE.start_main_~m~0#1_5|)) |v_ULTIMATE.start_main_~i~0#1_5|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_5|, ULTIMATE.start_main_~m~0#1=|v_ULTIMATE.start_main_~m~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 112#L20-2 [37] L20-2-->L20: Formula: (< 0 |v_ULTIMATE.start_main_~i~0#1_9|) InVars {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_9|} AuxVars[] AssignedVars[] 109#L20 [2023-02-13 03:40:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2579, now seen corresponding path program 1 times [2023-02-13 03:40:34,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:34,351 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665640987] [2023-02-13 03:40:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:34,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,354 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:34,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2393, now seen corresponding path program 1 times [2023-02-13 03:40:34,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:34,357 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636877103] [2023-02-13 03:40:34,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:34,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,359 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2479851, now seen corresponding path program 2 times [2023-02-13 03:40:34,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:34,361 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497753389] [2023-02-13 03:40:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:34,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,365 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:34,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:34,385 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:34,385 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:34,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:34,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:34,385 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:34,385 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,385 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:34,385 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:34,385 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2023-02-13 03:40:34,385 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:34,385 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:34,386 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 03:40:34,391 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 03:40:34,392 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 03:40:34,393 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 03:40:34,394 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 03:40:34,395 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 03:40:34,423 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:34,423 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:34,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,424 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,424 INFO L229 MonitoredProcess]: Starting monitored process 18 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 03:40:34,425 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-13 03:40:34,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:34,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:34,447 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-13 03:40:34,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:34,447 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,448 INFO L229 MonitoredProcess]: Starting monitored process 19 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 03:40:34,449 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-13 03:40:34,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:34,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:34,554 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:34,557 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-02-13 03:40:34,557 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:34,557 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:34,557 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:34,557 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:34,557 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:34,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,557 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:34,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:34,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2023-02-13 03:40:34,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:34,558 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:34,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:34,571 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 03:40:34,576 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 03:40:34,578 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 03:40:34,581 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 03:40:34,583 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 03:40:34,627 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:34,627 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:34,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,628 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,629 INFO L229 MonitoredProcess]: Starting monitored process 20 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 03:40:34,632 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-13 03:40:34,634 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 03:40:34,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:34,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:34,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:34,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:34,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:34,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:34,655 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:34,674 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-02-13 03:40:34,674 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-02-13 03:40:34,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:34,676 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:34,678 INFO L229 MonitoredProcess]: Starting monitored process 21 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 03:40:34,681 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-13 03:40:34,681 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:34,693 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-13 03:40:34,694 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:34,694 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~m~0#1) = 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [1*ULTIMATE.start_main_~m~0#1 - 1 >= 0] [2023-02-13 03:40:34,732 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:34,737 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-13 03:40:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:34,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-13 03:40:34,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:34,789 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:34,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:34,846 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 03:40:34,870 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:34,871 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2023-02-13 03:40:34,871 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 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 03:40:34,915 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 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 12 states and 15 transitions. Complement of second has 8 states. [2023-02-13 03:40:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 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 03:40:34,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-13 03:40:34,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-13 03:40:34,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:34,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-13 03:40:34,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:34,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-13 03:40:34,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:34,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2023-02-13 03:40:34,924 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:34,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-02-13 03:40:34,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:34,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:34,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:34,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:34,925 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:34,925 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:34,926 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:34,926 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:40:34,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:34,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:34,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:34,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:34 BasicIcfg [2023-02-13 03:40:34,936 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:34,937 INFO L158 Benchmark]: Toolchain (without parser) took 2239.79ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 93.8MB). Peak memory consumption was 91.0MB. Max. memory is 42.9GB. [2023-02-13 03:40:34,938 INFO L158 Benchmark]: CDTParser took 0.10ms. 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 03:40:34,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 114.62ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:34,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.80ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:34,939 INFO L158 Benchmark]: Boogie Preprocessor took 8.88ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:34,940 INFO L158 Benchmark]: RCFGBuilder took 169.78ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:34,940 INFO L158 Benchmark]: BlockEncodingV2 took 39.38ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:34,940 INFO L158 Benchmark]: TraceAbstraction took 13.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:34,941 INFO L158 Benchmark]: BuchiAutomizer took 1868.65ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 62.5MB). Peak memory consumption was 57.5MB. Max. memory is 42.9GB. [2023-02-13 03:40:34,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 114.62ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 20.80ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Preprocessor took 8.88ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 169.78ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 39.38ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.49ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 1868.65ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 62.5MB). Peak memory consumption was 57.5MB. 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 (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function i + -1 * m and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 6 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp100 dnf100 smp100 tf107 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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 03:40:34,991 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-13 03:40:35,187 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 03:40:35,390 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 03:40:35,588 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...