NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:16,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:16,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:16,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:16,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:16,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:16,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:16,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:16,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:16,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:16,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:16,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:16,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:16,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:16,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:16,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:16,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:16,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:16,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:16,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:16,562 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:16,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:16,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:16,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:16,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:16,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:16,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:16,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:16,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:16,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:16,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:16,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:16,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:16,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:16,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:16,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:16,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:16,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:16,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:16,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:16,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:16,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:16,572 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:16,583 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:16,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:16,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:16,584 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:16,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:16,584 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:16,584 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:16,584 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:16,584 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:16,584 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:16,584 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:16,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:16,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:16,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:16,586 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:16,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:16,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:16,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:16,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:16,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:16,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:16,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:16,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:16,735 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:16,735 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:16,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:16,769 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/0e6ef972096047d38e082588f7423821/FLAGf066e28c3 [2023-02-13 03:40:17,113 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:17,113 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:17,116 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/0e6ef972096047d38e082588f7423821/FLAGf066e28c3 [2023-02-13 03:40:17,569 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/0e6ef972096047d38e082588f7423821 [2023-02-13 03:40:17,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:17,574 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:17,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:17,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:17,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:17,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7357b793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:17,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:17,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:17,701 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:17,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:17,715 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:17,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17 WrapperNode [2023-02-13 03:40:17,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:17,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:17,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:17,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:17,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,731 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-02-13 03:40:17,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:17,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:17,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:17,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:17,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:17,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:17,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:17,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:17,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:17,771 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:17,782 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 03:40:17,785 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:17,878 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:17,879 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:17,947 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:17,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:17,952 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-13 03:40:17,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17 BoogieIcfgContainer [2023-02-13 03:40:17,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:17,954 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:17,954 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:17,956 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:17,956 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17" (1/1) ... [2023-02-13 03:40:17,966 INFO L313 BlockEncoder]: Initial Icfg 13 locations, 23 edges [2023-02-13 03:40:17,967 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:17,967 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:17,967 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:17,967 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:17,968 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:17,968 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:17,968 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:17,978 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:17,982 INFO L200 BlockEncoder]: SBE split 0 edges [2023-02-13 03:40:17,985 INFO L70 emoveInfeasibleEdges]: Removed 4 edges and 0 locations because of local infeasibility [2023-02-13 03:40:17,986 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:17,989 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:17,990 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2023-02-13 03:40:17,991 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:17,991 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:17,991 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:17,991 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:17,991 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 12 edges [2023-02-13 03:40:17,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:17 BasicIcfg [2023-02-13 03:40:17,992 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:17,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:17,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:17,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:17,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:17" (1/4) ... [2023-02-13 03:40:17,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509be912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (2/4) ... [2023-02-13 03:40:17,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509be912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17" (3/4) ... [2023-02-13 03:40:17,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509be912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:17, skipping insertion in model container [2023-02-13 03:40:17,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:17" (4/4) ... [2023-02-13 03:40:17,996 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:18,005 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:18,005 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:18,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509be912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:18, skipping insertion in model container [2023-02-13 03:40:18,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:18,006 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:18,006 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:18,008 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:18,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:18,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:17" (1/4) ... [2023-02-13 03:40:18,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79862bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:18, skipping insertion in model container [2023-02-13 03:40:18,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:18,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:17" (2/4) ... [2023-02-13 03:40:18,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79862bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:18, skipping insertion in model container [2023-02-13 03:40:18,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:18,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:17" (3/4) ... [2023-02-13 03:40:18,010 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79862bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:18, skipping insertion in model container [2023-02-13 03:40:18,010 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:18,010 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:17" (4/4) ... [2023-02-13 03:40:18,010 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:18,039 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:18,039 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:18,039 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:18,039 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:18,039 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:18,039 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:18,039 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:18,040 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:18,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 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 03:40:18,052 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-02-13 03:40:18,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,055 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,055 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:18,055 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:18,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 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 03:40:18,056 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-02-13 03:40:18,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,056 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:18,056 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:18,059 INFO L733 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue [101] ULTIMATE.startENTRY-->L10: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 864) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_19|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1] 7#L10true [86] L10-->L12-2: Formula: (and (<= |v_ULTIMATE.start_main_~c~0#1_5| 10) (= |v_ULTIMATE.start_main_~i~0#1_3| 0)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_3|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 2#L12-2true [2023-02-13 03:40:18,059 INFO L735 eck$LassoCheckResult]: Loop: 2#L12-2true [73] L12-2-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~i~0#1_7| 100) (= (+ |v_ULTIMATE.start_main_~i~0#1_7| 1) |v_ULTIMATE.start_main_~i~0#1_6|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 2#L12-2true [2023-02-13 03:40:18,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,063 INFO L85 PathProgramCache]: Analyzing trace with hash 4178, now seen corresponding path program 1 times [2023-02-13 03:40:18,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,068 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998337840] [2023-02-13 03:40:18,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:18,148 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998337840] [2023-02-13 03:40:18,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998337840] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:18,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:18,150 ERROR L191 FreeRefinementEngine]: {12#true} [14#(<= 864 |ULTIMATE.start_main_~c~0#1|)] {13#false} [2023-02-13 03:40:18,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:40:18,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291389574] [2023-02-13 03:40:18,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:18,158 INFO L738 eck$LassoCheckResult]: stem already infeasible [2023-02-13 03:40:18,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 1 times [2023-02-13 03:40:18,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,161 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361239764] [2023-02-13 03:40:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,169 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,198 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,199 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,199 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,199 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,199 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:18,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:18,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,199 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,207 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 03:40:18,215 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,243 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,243 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:18,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,245 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,249 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 03:40:18,250 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 03:40:18,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,262 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 03:40:18,277 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 03:40:18,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,278 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,278 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 03:40:18,279 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 03:40:18,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,290 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:18,291 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 03:40:18,311 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 03:40:18,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,312 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,313 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 03:40:18,314 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 03:40:18,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:18,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,361 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 03:40:18,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:18,362 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,364 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 03:40:18,366 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 03:40:18,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:18,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:18,414 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:18,416 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 03:40:18,417 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:18,417 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:18,417 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:18,417 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:18,417 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:18,417 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,418 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:18,418 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:18,418 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:18,418 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:18,418 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:18,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,424 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:18,466 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:18,470 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:18,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,471 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,472 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 03:40:18,474 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 03:40:18,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:18,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:18,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,527 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 03:40:18,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,528 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,529 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 03:40:18,531 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 03:40:18,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:18,568 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:18,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:18,602 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 03:40:18,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,603 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,603 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 03:40:18,604 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 03:40:18,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:18,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:18,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:18,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:18,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:18,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:18,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:18,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:18,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:18,615 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:18,615 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:18,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:18,617 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:18,617 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 03:40:18,619 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 03:40:18,619 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:18,619 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:18,619 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:18,620 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2023-02-13 03:40:18,643 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 03:40:18,646 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:18,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:18,685 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:18,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:18,707 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:18,709 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 1 loop predicates [2023-02-13 03:40:18,710 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 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) Second operand has 2 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 03:40:18,726 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 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). Second operand has 2 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) Result 9 states and 13 transitions. Complement of second has 2 states. [2023-02-13 03:40:18,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 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 03:40:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 14 transitions. [2023-02-13 03:40:18,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 14 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-13 03:40:18,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 14 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-13 03:40:18,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-13 03:40:18,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:18,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2023-02-13 03:40:18,740 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2023-02-13 03:40:18,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 7 states and 10 transitions. [2023-02-13 03:40:18,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:40:18,744 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:40:18,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2023-02-13 03:40:18,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:18,744 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:18,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2023-02-13 03:40:18,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-02-13 03:40:18,758 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 03:40:18,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:40:18,759 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:40:18,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:18,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:18,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:18,761 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:18,769 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2023-02-13 03:40:18,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2023-02-13 03:40:18,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:18,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2023-02-13 03:40:18,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:40:18,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:40:18,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2023-02-13 03:40:18,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:18,772 INFO L220 hiAutomatonCegarLoop]: Abstraction has 5 states and 5 transitions. [2023-02-13 03:40:18,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2023-02-13 03:40:18,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-13 03:40:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2023-02-13 03:40:18,774 INFO L242 hiAutomatonCegarLoop]: Abstraction has 5 states and 5 transitions. [2023-02-13 03:40:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:18,777 INFO L426 stractBuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2023-02-13 03:40:18,777 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:18,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2023-02-13 03:40:18,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:18,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:18,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:18,779 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-13 03:40:18,779 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:18,779 INFO L733 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY [101] ULTIMATE.startENTRY-->L10: Formula: (= |v_ULTIMATE.start_main_~c~0#1_10| 864) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_19|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~c~0#1, ULTIMATE.start_main_#res#1] 58#L10 [94] L10-->L17: Formula: (> |v_ULTIMATE.start_main_~c~0#1_7| 10) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_7|} AuxVars[] AssignedVars[] 55#L17 [96] L17-->L17-1: Formula: (> |v_ULTIMATE.start_main_~c~0#1_4| 50) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} OutVars{ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_4|} AuxVars[] AssignedVars[] 56#L17-1 [98] L17-1-->L31-2: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_12| 0) (> |v_ULTIMATE.start_main_~c~0#1_9| 100)) InVars {ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~c~0#1=|v_ULTIMATE.start_main_~c~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 59#L31-2 [2023-02-13 03:40:18,779 INFO L735 eck$LassoCheckResult]: Loop: 59#L31-2 [92] L31-2-->L31-2: Formula: (and (< |v_ULTIMATE.start_main_~i~0#1_18| 103) (= |v_ULTIMATE.start_main_~i~0#1_18| |v_ULTIMATE.start_main_~i~0#1_17|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_18|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 59#L31-2 [2023-02-13 03:40:18,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,780 INFO L85 PathProgramCache]: Analyzing trace with hash 4025820, now seen corresponding path program 1 times [2023-02-13 03:40:18,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,781 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846376088] [2023-02-13 03:40:18,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,788 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash 123, now seen corresponding path program 1 times [2023-02-13 03:40:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,792 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792535154] [2023-02-13 03:40:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,797 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:18,800 INFO L85 PathProgramCache]: Analyzing trace with hash 124800512, now seen corresponding path program 1 times [2023-02-13 03:40:18,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:18,800 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809995100] [2023-02-13 03:40:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:18,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,804 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:18,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:18,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:18 BasicIcfg [2023-02-13 03:40:18,846 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:18,846 INFO L158 Benchmark]: Toolchain (without parser) took 1272.24ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 18.5MB). Peak memory consumption was 15.1MB. Max. memory is 42.9GB. [2023-02-13 03:40:18,846 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 03:40:18,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.05ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:18,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.74ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:18,847 INFO L158 Benchmark]: Boogie Preprocessor took 9.11ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.3MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:18,847 INFO L158 Benchmark]: RCFGBuilder took 212.84ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:18,847 INFO L158 Benchmark]: BlockEncodingV2 took 37.43ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:18,848 INFO L158 Benchmark]: TraceAbstraction took 13.23ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:18,848 INFO L158 Benchmark]: BuchiAutomizer took 839.43ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:18,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 13 locations, 23 edges - StatisticsResult: Encoded RCFG 8 locations, 12 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 139.05ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.2MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Procedure Inliner took 15.74ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 9.11ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.3MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. * RCFGBuilder took 212.84ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 37.43ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.23ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 839.43ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: -13.0MB). There was no memory consumed. 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 (1 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -2 * i + 199 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 31]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:40:18,892 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 03:40:19,096 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...