YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:41:01,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:41:01,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:41:01,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:41:01,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:41:01,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:41:01,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:41:01,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:41:01,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:41:01,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:41:01,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:41:01,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:41:01,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:41:01,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:41:01,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:41:01,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:41:01,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:41:01,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:41:01,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:41:01,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:41:01,104 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:41:01,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:41:01,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:41:01,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:41:01,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:41:01,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:41:01,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:41:01,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:41:01,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:41:01,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:41:01,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:41:01,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:41:01,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:41:01,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:41:01,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:41:01,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:41:01,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:41:01,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:41:01,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:41:01,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:41:01,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:41:01,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:41:01,113 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:41:01,124 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:41:01,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:41:01,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:41:01,125 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:41:01,125 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:01,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:41:01,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:41:01,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:01,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:41:01,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:41:01,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:41:01,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:41:01,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:41:01,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:41:01,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:41:01,273 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:41:01,273 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:41:01,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,307 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/bf1f8fd1893a42019e8f9c8572537c5d/FLAGfa6c08d3d [2023-02-13 03:41:01,629 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:41:01,629 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,632 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/bf1f8fd1893a42019e8f9c8572537c5d/FLAGfa6c08d3d [2023-02-13 03:41:01,639 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/bf1f8fd1893a42019e8f9c8572537c5d [2023-02-13 03:41:01,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:41:01,641 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:41:01,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:01,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:41:01,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:41:01,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e23f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:41:01,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:41:01,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:01,752 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:41:01,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:01,764 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:41:01,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01 WrapperNode [2023-02-13 03:41:01,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:01,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:01,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:41:01,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:41:01,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,795 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-02-13 03:41:01,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:01,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:41:01,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:41:01,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:41:01,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:41:01,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:41:01,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:41:01,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:41:01,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:01,819 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:01,826 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 03:41:01,830 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 03:41:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:41:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:41:01,909 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:41:01,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:41:01,966 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:41:01,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:41:01,970 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:41:01,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01 BoogieIcfgContainer [2023-02-13 03:41:01,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:41:01,971 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:41:01,971 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:41:01,973 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:41:01,973 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,981 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 11 edges [2023-02-13 03:41:01,981 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:41:01,982 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:41:01,982 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:41:01,982 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:01,983 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:41:01,984 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:41:01,984 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:41:01,996 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:41:02,001 INFO L200 BlockEncoder]: SBE split 0 edges [2023-02-13 03:41:02,004 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:41:02,005 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:02,011 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:41:02,012 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:41:02,012 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:41:02,013 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:02,013 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:41:02,013 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:41:02,013 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2023-02-13 03:41:02,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02 BasicIcfg [2023-02-13 03:41:02,013 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:41:02,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:41:02,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:41:02,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:41:02,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:02,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9ff067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (2/4) ... [2023-02-13 03:41:02,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9ff067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01" (3/4) ... [2023-02-13 03:41:02,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9ff067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02" (4/4) ... [2023-02-13 03:41:02,018 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:02,027 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:41:02,027 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:41:02,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9ff067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:41:02,028 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:41:02,028 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:41:02,030 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:41:02,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:02,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@119a3be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (2/4) ... [2023-02-13 03:41:02,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@119a3be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01" (3/4) ... [2023-02-13 03:41:02,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@119a3be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:02, skipping insertion in model container [2023-02-13 03:41:02,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:02,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:02" (4/4) ... [2023-02-13 03:41:02,032 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:02,059 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:41:02,059 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:41:02,059 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:41:02,059 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:41:02,059 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:41:02,059 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:41:02,059 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:41:02,059 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:41:02,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.25) 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 03:41:02,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:02,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,074 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:02,074 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:02,074 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:41:02,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.25) 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 03:41:02,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:02,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,075 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:02,075 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:02,078 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_6| 0) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 4#L11-2true [2023-02-13 03:41:02,078 INFO L735 eck$LassoCheckResult]: Loop: 4#L11-2true [33] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 5#L12true [34] L12-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~z~0#1_6|) (= (+ |v_ULTIMATE.start_main_~x~0#1_8| 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_8|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 2#L12-2true [26] L12-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_4| (+ |v_ULTIMATE.start_main_~c~0#1_5| 1)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0#1] 4#L11-2true [2023-02-13 03:41:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2023-02-13 03:41:02,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,087 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129475136] [2023-02-13 03:41:02,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,144 INFO L85 PathProgramCache]: Analyzing trace with hash 62584, now seen corresponding path program 1 times [2023-02-13 03:41:02,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,144 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594203923] [2023-02-13 03:41:02,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,151 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2118163, now seen corresponding path program 1 times [2023-02-13 03:41:02,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,156 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207607640] [2023-02-13 03:41:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,160 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,201 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,202 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:02,202 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:02,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,202 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,210 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 03:41:02,216 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 03:41:02,218 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 03:41:02,225 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 03:41:02,265 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,265 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:02,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,267 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,273 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 03:41:02,276 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 03:41:02,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,287 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 03:41:02,307 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 03:41:02,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,307 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,308 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 03:41:02,310 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 03:41:02,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,321 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,321 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 03:41:02,354 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 03:41:02,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,355 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,357 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 03:41:02,359 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 03:41:02,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,410 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 03:41:02,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,412 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,413 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 03:41:02,415 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 03:41:02,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:02,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,545 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:02,549 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:02,549 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,550 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,550 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,550 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,550 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:02,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,550 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,550 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:41:02,550 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,550 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,551 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 03:41:02,556 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,563 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:41:02,571 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 03:41:02,609 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,612 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:02,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,613 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,614 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 03:41:02,615 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 03:41:02,615 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 03:41:02,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:02,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:02,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:02,661 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 03:41:02,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,662 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,663 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 03:41:02,664 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 03:41:02,665 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 03:41:02,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:02,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:02,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:02,677 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:02,684 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-13 03:41:02,684 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:41:02,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,685 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,693 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 03:41:02,695 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:02,696 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:02,696 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:02,697 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:41:02,697 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 03:41:02,719 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 03:41:02,724 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:02,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,758 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:02,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,768 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:02,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:02,820 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 03:41:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,857 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:02,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:02,863 INFO L100 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2023-02-13 03:41:02,866 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-13 03:41:02,867 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.25) 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) 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 03:41:02,889 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.25) 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). 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 6 states. [2023-02-13 03:41:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-13 03:41:02,893 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 03:41:02,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-02-13 03:41:02,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:41:02,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:41:02,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:41:02,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2023-02-13 03:41:02,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:02,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 15 transitions. [2023-02-13 03:41:02,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:41:02,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:41:02,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-02-13 03:41:02,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:02,902 INFO L220 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-02-13 03:41:02,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-02-13 03:41:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2023-02-13 03:41:02,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 03:41:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-02-13 03:41:02,916 INFO L242 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-13 03:41:02,916 INFO L426 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-13 03:41:02,916 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:41:02,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-02-13 03:41:02,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:02,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,917 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:02,917 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:02,917 INFO L733 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_6| 0) InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet2#1=|v_ULTIMATE.start_main_#t~nondet2#1_3|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_7|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet2#1, ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_#t~nondet0#1] 68#L11-2 [33] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 69#L12 [2023-02-13 03:41:02,917 INFO L735 eck$LassoCheckResult]: Loop: 69#L12 [38] L12-->L12-2: Formula: (and (= (+ |v_ULTIMATE.start_main_~z~0#1_2| 1) |v_ULTIMATE.start_main_~z~0#1_1|) (>= |v_ULTIMATE.start_main_~x~0#1_1| |v_ULTIMATE.start_main_~z~0#1_2|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_2|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_1|, ULTIMATE.start_main_~z~0#1=|v_ULTIMATE.start_main_~z~0#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0#1] 63#L12-2 [26] L12-2-->L11-2: Formula: (= |v_ULTIMATE.start_main_~c~0#1_4| (+ |v_ULTIMATE.start_main_~c~0#1_5| 1)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0#1] 64#L11-2 [33] L11-2-->L12: Formula: (< |v_ULTIMATE.start_main_~x~0#1_6| |v_ULTIMATE.start_main_~y~0#1_5|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[] 69#L12 [2023-02-13 03:41:02,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2203, now seen corresponding path program 1 times [2023-02-13 03:41:02,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,918 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084611487] [2023-02-13 03:41:02,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,920 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,922 INFO L85 PathProgramCache]: Analyzing trace with hash 67148, now seen corresponding path program 1 times [2023-02-13 03:41:02,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,922 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828093632] [2023-02-13 03:41:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,925 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash 65666930, now seen corresponding path program 1 times [2023-02-13 03:41:02,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,928 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608707783] [2023-02-13 03:41:02,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,931 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,948 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,949 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:02,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:02,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,949 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,950 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 03:41:02,952 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 03:41:02,955 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 03:41:02,956 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 03:41:02,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,978 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:02,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,978 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,981 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:02,982 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:41:02,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,991 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,991 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 03:41:03,005 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:41:03,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,006 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,006 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 03:41:03,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:03,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,009 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 03:41:03,033 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:41:03,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:03,034 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,035 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 03:41:03,037 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 03:41:03,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:03,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:03,183 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:03,185 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:41:03,186 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:03,186 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:03,186 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:03,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:03,187 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:03,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:03,188 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:03,188 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:03,188 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:03,188 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:03,191 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 03:41:03,195 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 03:41:03,207 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 03:41:03,211 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 03:41:03,260 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,260 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:03,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,261 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,262 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:03,264 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:41:03,265 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 03:41:03,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,323 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:41:03,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,323 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,324 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:41:03,326 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:41:03,328 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 03:41:03,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,347 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:03,351 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:03,351 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:03,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,352 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,353 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 03:41:03,358 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 03:41:03,358 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:03,359 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:03,359 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:03,359 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-13 03:41:03,382 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:41:03,384 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:03,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,406 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,425 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 03:41:03,434 INFO L100 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:41:03,435 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:41:03,435 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 12 transitions. cyclomatic complexity: 5 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 03:41:03,447 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 12 transitions. cyclomatic complexity: 5. 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 17 states and 21 transitions. Complement of second has 6 states. [2023-02-13 03:41:03,448 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 03:41:03,449 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 03:41:03,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-13 03:41:03,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:41:03,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:41:03,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:41:03,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2023-02-13 03:41:03,454 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:03,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2023-02-13 03:41:03,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:41:03,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:41:03,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:41:03,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:03,455 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:03,455 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:03,455 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:03,455 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:41:03,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:41:03,456 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:03,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:41:03,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:03 BasicIcfg [2023-02-13 03:41:03,464 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:41:03,465 INFO L158 Benchmark]: Toolchain (without parser) took 1823.03ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 53.5MB). Peak memory consumption was 58.2MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,465 INFO L158 Benchmark]: CDTParser took 0.09ms. 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 03:41:03,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 121.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:03,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.02ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,466 INFO L158 Benchmark]: Boogie Preprocessor took 9.94ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:03,467 INFO L158 Benchmark]: RCFGBuilder took 165.34ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,467 INFO L158 Benchmark]: BlockEncodingV2 took 41.96ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:03,468 INFO L158 Benchmark]: TraceAbstraction took 13.58ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,468 INFO L158 Benchmark]: BuchiAutomizer took 1435.90ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 23.2MB). Peak memory consumption was 24.6MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 121.66ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Procedure Inliner took 30.02ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.6MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. * Boogie Preprocessor took 9.94ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 165.34ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 41.96ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.58ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 1435.90ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 23.2MB). Peak memory consumption was 24.6MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 03:41:03,490 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:41:03,716 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:03,915 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...