NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:31,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:31,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:31,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:31,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:31,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:31,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:31,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:31,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:31,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:31,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:31,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:31,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:31,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:31,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:31,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:31,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:31,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:31,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:31,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:31,182 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:31,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:31,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:31,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:31,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:31,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:31,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:31,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:31,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:31,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:31,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:31,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:31,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:31,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:31,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:31,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:31,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:31,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:31,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:31,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:31,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:31,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:31,190 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:31,201 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:31,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:31,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:31,202 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:31,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:31,202 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:31,202 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:31,202 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:31,202 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:31,202 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:31,202 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:31,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:31,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:31,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:31,204 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:31,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:31,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:31,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:31,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:31,204 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:31,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:31,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:31,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:31,345 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:31,345 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:31,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:31,384 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/74601b03064942988702b81f2d055372/FLAG28988532f [2023-02-13 03:40:31,730 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:31,730 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:31,734 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/74601b03064942988702b81f2d055372/FLAG28988532f [2023-02-13 03:40:32,181 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/74601b03064942988702b81f2d055372 [2023-02-13 03:40:32,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:32,186 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:32,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:32,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:32,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:32,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304578a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:32,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:32,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:32,296 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:32,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:32,309 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:32,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32 WrapperNode [2023-02-13 03:40:32,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:32,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:32,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:32,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:32,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,325 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2023-02-13 03:40:32,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:32,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:32,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:32,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:32,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:32,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:32,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:32,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:32,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:32,346 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:32,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:32,363 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:32,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:32,454 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:32,456 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:32,515 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:32,519 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:32,520 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:40:32,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32 BoogieIcfgContainer [2023-02-13 03:40:32,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:32,521 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:32,521 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:32,522 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:32,523 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32" (1/1) ... [2023-02-13 03:40:32,532 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2023-02-13 03:40:32,533 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:32,534 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:32,534 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:32,534 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:32,535 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:32,535 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:32,535 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:32,543 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:32,549 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:40:32,551 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:40:32,552 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:32,555 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2023-02-13 03:40:32,556 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:40:32,557 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:32,557 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:32,557 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:32,557 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:32,557 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2023-02-13 03:40:32,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:32 BasicIcfg [2023-02-13 03:40:32,558 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:32,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:32,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:32,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:32,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:32" (1/4) ... [2023-02-13 03:40:32,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade56a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (2/4) ... [2023-02-13 03:40:32,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade56a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32" (3/4) ... [2023-02-13 03:40:32,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade56a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:32" (4/4) ... [2023-02-13 03:40:32,562 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:32,571 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:32,571 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:32,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade56a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:32,572 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:32,572 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:32,574 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:32,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:32" (1/4) ... [2023-02-13 03:40:32,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29f8ab8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:32" (2/4) ... [2023-02-13 03:40:32,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29f8ab8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:32" (3/4) ... [2023-02-13 03:40:32,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29f8ab8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:32, skipping insertion in model container [2023-02-13 03:40:32,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:32,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:32" (4/4) ... [2023-02-13 03:40:32,576 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:32,604 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:32,604 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:32,604 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:32,604 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:32,604 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:32,604 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:32,604 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:32,605 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:32,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 03:40:32,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:32,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:32,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:32,620 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:32,620 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:32,620 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:32,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 03:40:32,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-13 03:40:32,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:32,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:32,621 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:32,621 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:32,624 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [58] ULTIMATE.startENTRY-->L15-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#res#1] 5#L15-1true [2023-02-13 03:40:32,624 INFO L735 eck$LassoCheckResult]: Loop: 5#L15-1true [54] L15-1-->L15: Formula: (< |v_ULTIMATE.start_main_~x~0#1_4| 0) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} AuxVars[] AssignedVars[] 4#L15true [56] L15-->L15-1: Formula: (and (> |v_ULTIMATE.start_main_~x~0#1_14| 35) (= |v_ULTIMATE.start_main_~x~0#1_13| 0)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 5#L15-1true [2023-02-13 03:40:32,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash 89, now seen corresponding path program 1 times [2023-02-13 03:40:32,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,633 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642484387] [2023-02-13 03:40:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2691, now seen corresponding path program 1 times [2023-02-13 03:40:32,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,690 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021816321] [2023-02-13 03:40:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:32,722 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 03:40:32,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:40:32,723 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021816321] [2023-02-13 03:40:32,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021816321] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:40:32,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:40:32,723 ERROR L191 FreeRefinementEngine]: {11#true} [13#(<= (+ |ULTIMATE.start_main_~x~0#1| 1) 0)] {12#false} [2023-02-13 03:40:32,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:40:32,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380071618] [2023-02-13 03:40:32,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:40:32,726 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:40:32,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:40:32,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:40:32,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:40:32,746 INFO L87 Difference]: Start difference. First operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) 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 03:40:32,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:40:32,766 INFO L93 Difference]: Finished difference Result 8 states and 14 transitions. [2023-02-13 03:40:32,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 14 transitions. [2023-02-13 03:40:32,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:32,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 14 transitions. [2023-02-13 03:40:32,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:40:32,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-13 03:40:32,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 14 transitions. [2023-02-13 03:40:32,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:32,771 INFO L220 hiAutomatonCegarLoop]: Abstraction has 8 states and 14 transitions. [2023-02-13 03:40:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 14 transitions. [2023-02-13 03:40:32,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-13 03:40:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 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 03:40:32,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2023-02-13 03:40:32,785 INFO L242 hiAutomatonCegarLoop]: Abstraction has 8 states and 14 transitions. [2023-02-13 03:40:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:40:32,790 INFO L426 stractBuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2023-02-13 03:40:32,790 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:32,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 14 transitions. [2023-02-13 03:40:32,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:32,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:32,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:32,791 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:32,791 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:40:32,791 INFO L733 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY [58] ULTIMATE.startENTRY-->L15-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#res#1] 25#L15-1 [2023-02-13 03:40:32,792 INFO L735 eck$LassoCheckResult]: Loop: 25#L15-1 [54] L15-1-->L15: Formula: (< |v_ULTIMATE.start_main_~x~0#1_4| 0) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} AuxVars[] AssignedVars[] 26#L15 [57] L15-->L15-1: Formula: (and (> 0 (+ |v_ULTIMATE.start_main_~x~0#1_14| 5)) (= |v_ULTIMATE.start_main_~x~0#1_13| 0)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_14|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 25#L15-1 [2023-02-13 03:40:32,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,792 INFO L85 PathProgramCache]: Analyzing trace with hash 89, now seen corresponding path program 2 times [2023-02-13 03:40:32,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,792 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651199580] [2023-02-13 03:40:32,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,795 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2692, now seen corresponding path program 1 times [2023-02-13 03:40:32,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,797 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737788757] [2023-02-13 03:40:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,800 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:32,802 INFO L85 PathProgramCache]: Analyzing trace with hash 87260, now seen corresponding path program 1 times [2023-02-13 03:40:32,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:32,803 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095676345] [2023-02-13 03:40:32,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:32,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,806 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:32,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:32,829 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:32,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:32,830 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:32,830 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:32,830 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:32,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:32,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:32,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:32,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:32,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:32,830 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:32,838 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 03:40:32,845 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 03:40:32,848 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 03:40:32,878 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:32,878 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:32,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:32,879 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:32,884 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 03:40:32,888 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 03:40:32,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:32,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:32,900 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:32,901 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 03:40:32,917 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 03:40:32,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:32,918 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:32,919 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 03:40:32,920 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 03:40:32,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:32,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:32,929 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:32,929 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 03:40:32,948 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 03:40:32,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:32,949 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:32,950 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 03:40:32,951 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 03:40:32,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:32,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:32,992 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:32,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:32,994 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:32,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:33,019 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:33,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:33,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:33,081 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:33,083 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:33,084 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:33,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:33,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:33,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:33,086 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:33,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:33,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:33,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:33,087 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:33,087 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:33,090 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:33,095 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:33,096 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:33,124 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:33,127 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:33,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,128 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,129 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:33,132 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:33,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:33,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:33,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:33,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:33,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:33,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:33,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:33,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:33,169 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:33,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,170 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:33,171 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:33,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:33,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:33,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:33,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:33,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:33,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:33,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:33,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:33,203 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:33,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,203 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,204 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:33,209 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:33,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:33,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:33,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:33,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:33,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:33,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:33,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:33,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:33,218 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:33,221 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:40:33,221 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:33,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:33,223 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:33,224 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:33,226 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:33,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:33,227 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:33,227 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:33,228 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-13 03:40:33,264 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:33,272 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:33,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:33,314 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:33,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:33,326 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:33,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:33,334 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:33,337 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-13 03:40:33,338 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:33,373 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 35 transitions. Complement of second has 4 states. [2023-02-13 03:40:33,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2023-02-13 03:40:33,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:40:33,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:33,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:40:33,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:33,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:40:33,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:33,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 35 transitions. [2023-02-13 03:40:33,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:33,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 32 transitions. [2023-02-13 03:40:33,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-13 03:40:33,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-13 03:40:33,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 32 transitions. [2023-02-13 03:40:33,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:33,379 INFO L220 hiAutomatonCegarLoop]: Abstraction has 17 states and 32 transitions. [2023-02-13 03:40:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 32 transitions. [2023-02-13 03:40:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2023-02-13 03:40:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 26 transitions. [2023-02-13 03:40:33,380 INFO L242 hiAutomatonCegarLoop]: Abstraction has 13 states and 26 transitions. [2023-02-13 03:40:33,380 INFO L426 stractBuchiCegarLoop]: Abstraction has 13 states and 26 transitions. [2023-02-13 03:40:33,380 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:33,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 26 transitions. [2023-02-13 03:40:33,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-13 03:40:33,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:33,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:33,381 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-13 03:40:33,381 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:33,381 INFO L733 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY [58] ULTIMATE.startENTRY-->L15-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_15|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_#res#1] 80#L15-1 [54] L15-1-->L15: Formula: (< |v_ULTIMATE.start_main_~x~0#1_4| 0) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} AuxVars[] AssignedVars[] 81#L15 [39] L15-->L16: Formula: (and (<= 0 (+ 5 |v_ULTIMATE.start_main_~x~0#1_5|)) (<= |v_ULTIMATE.start_main_~x~0#1_5| 35)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[] 77#L16 [2023-02-13 03:40:33,382 INFO L735 eck$LassoCheckResult]: Loop: 77#L16 [36] L16-->L15-1: Formula: (and (= |v_ULTIMATE.start_main_~x~0#1_6| (- 5)) (< |v_ULTIMATE.start_main_~x~0#1_7| 0)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 78#L15-1 [54] L15-1-->L15: Formula: (< |v_ULTIMATE.start_main_~x~0#1_4| 0) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|} AuxVars[] AssignedVars[] 84#L15 [39] L15-->L16: Formula: (and (<= 0 (+ 5 |v_ULTIMATE.start_main_~x~0#1_5|)) (<= |v_ULTIMATE.start_main_~x~0#1_5| 35)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|} AuxVars[] AssignedVars[] 77#L16 [2023-02-13 03:40:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 87242, now seen corresponding path program 1 times [2023-02-13 03:40:33,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,382 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692034805] [2023-02-13 03:40:33,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,385 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,387 INFO L85 PathProgramCache]: Analyzing trace with hash 66100, now seen corresponding path program 1 times [2023-02-13 03:40:33,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,387 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298851304] [2023-02-13 03:40:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,390 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:33,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1695904565, now seen corresponding path program 1 times [2023-02-13 03:40:33,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:33,393 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736380735] [2023-02-13 03:40:33,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:33,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,396 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:33,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:33,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:33 BasicIcfg [2023-02-13 03:40:33,440 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:33,441 INFO L158 Benchmark]: Toolchain (without parser) took 1254.51ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 20.9MB). Peak memory consumption was 15.6MB. Max. memory is 42.9GB. [2023-02-13 03:40:33,441 INFO L158 Benchmark]: CDTParser took 0.12ms. 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 03:40:33,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 121.65ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.8MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:33,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.36ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:33,441 INFO L158 Benchmark]: Boogie Preprocessor took 8.47ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.0MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:33,442 INFO L158 Benchmark]: RCFGBuilder took 186.17ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:33,442 INFO L158 Benchmark]: BlockEncodingV2 took 36.56ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:33,442 INFO L158 Benchmark]: TraceAbstraction took 13.27ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:33,442 INFO L158 Benchmark]: BuchiAutomizer took 867.95ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:33,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 121.65ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.8MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Procedure Inliner took 15.36ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 8.47ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.0MB). Peak memory consumption was 16.8MB. Max. memory is 42.9GB. * RCFGBuilder took 186.17ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 36.56ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.27ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BuchiAutomizer took 867.95ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: -9.6MB). 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 -1 * x and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf92 smp100 dnf100 smp100 tf115 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms 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: 16]: 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, x=-5} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x; [L14] COND TRUE x!=0 [L15] COND TRUE -5 <= x && x <= 35 Loop: [L16] COND TRUE x < 0 [L17] x = -5 [L14] COND TRUE x!=0 [L15] COND TRUE -5 <= x && x <= 35 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:40:33,466 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 03:40:33,697 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...