NO This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:39:20,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:39:20,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:39:20,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:39:20,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:39:20,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:39:20,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:39:20,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:39:20,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:39:20,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:39:20,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:39:20,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:39:20,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:39:20,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:39:20,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:39:20,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:39:20,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:39:20,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:39:20,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:39:20,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:39:20,506 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:39:20,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:39:20,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:39:20,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:39:20,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:39:20,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:39:20,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:39:20,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:39:20,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:39:20,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:39:20,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:39:20,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:39:20,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:39:20,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:39:20,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:39:20,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:39:20,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:39:20,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:39:20,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:39:20,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:39:20,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:39:20,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:39:20,515 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:39:20,526 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:39:20,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:39:20,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:39:20,527 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:39:20,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:39:20,527 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:20,527 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:39:20,527 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:39:20,527 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:39:20,527 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:39:20,527 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:39:20,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:39:20,528 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:39:20,529 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:39:20,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:39:20,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:39:20,529 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:39:20,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:20,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:39:20,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:39:20,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:39:20,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:39:20,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:39:20,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:39:20,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:39:20,672 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:39:20,673 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:39:20,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:20,705 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/2abcbc0bd5ef490ebdea07b7855385f3/FLAG8543c6403 [2023-02-13 03:39:21,056 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:39:21,056 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:39:21,059 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/2abcbc0bd5ef490ebdea07b7855385f3/FLAG8543c6403 [2023-02-13 03:39:21,504 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/2abcbc0bd5ef490ebdea07b7855385f3 [2023-02-13 03:39:21,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:39:21,509 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:39:21,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:21,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:39:21,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:39:21,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16bf94d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:39:21,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:39:21,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:21,616 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:39:21,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:39:21,629 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:39:21,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21 WrapperNode [2023-02-13 03:39:21,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:39:21,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:21,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:39:21,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:39:21,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,654 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-13 03:39:21,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:39:21,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:39:21,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:39:21,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:39:21,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:39:21,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:39:21,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:39:21,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:39:21,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:39:21,676 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:39:21,692 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 03:39:21,698 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 03:39:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:39:21,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:39:21,794 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:39:21,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:39:21,840 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:39:21,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:39:21,844 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-13 03:39:21,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:21 BoogieIcfgContainer [2023-02-13 03:39:21,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:39:21,846 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:39:21,846 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:39:21,848 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:39:21,848 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:21" (1/1) ... [2023-02-13 03:39:21,856 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2023-02-13 03:39:21,856 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:39:21,857 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:39:21,857 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:39:21,857 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:39:21,858 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:39:21,858 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:39:21,858 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:39:21,865 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:39:21,868 INFO L200 BlockEncoder]: SBE split 0 edges [2023-02-13 03:39:21,871 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2023-02-13 03:39:21,872 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:21,877 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2023-02-13 03:39:21,879 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2023-02-13 03:39:21,880 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:39:21,880 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:39:21,880 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:39:21,880 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:39:21,880 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2023-02-13 03:39:21,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:21 BasicIcfg [2023-02-13 03:39:21,880 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:39:21,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:39:21,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:39:21,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:39:21,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:39:21" (1/4) ... [2023-02-13 03:39:21,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15571adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (2/4) ... [2023-02-13 03:39:21,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15571adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:21" (3/4) ... [2023-02-13 03:39:21,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15571adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:21" (4/4) ... [2023-02-13 03:39:21,885 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:21,894 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:39:21,894 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:39:21,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15571adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:39:21,895 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:39:21,895 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:39:21,897 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:39:21,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:21,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:39:21" (1/4) ... [2023-02-13 03:39:21,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23bed38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:21,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:39:21" (2/4) ... [2023-02-13 03:39:21,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23bed38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:21,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:39:21" (3/4) ... [2023-02-13 03:39:21,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23bed38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:21, skipping insertion in model container [2023-02-13 03:39:21,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:39:21,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:39:21" (4/4) ... [2023-02-13 03:39:21,899 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:39:21,930 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:39:21,931 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:39:21,931 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:39:21,931 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:39:21,931 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:39:21,931 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:39:21,931 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:39:21,931 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:39:21,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:21,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:39:21,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:21,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:21,946 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:21,946 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:39:21,946 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:39:21,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:21,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-13 03:39:21,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:21,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:21,947 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:21,947 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:39:21,950 INFO L733 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [46] ULTIMATE.startENTRY-->L10-2: Formula: (= |v_ULTIMATE.start_main_~i~0#1_8| 0) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~j~0#1] 3#L10-2true [2023-02-13 03:39:21,950 INFO L735 eck$LassoCheckResult]: Loop: 3#L10-2true [37] L10-2-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~i~0#1_7| 100) (= |v_ULTIMATE.start_main_~j~0#1_6| 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 2#L12-2true [48] L12-2-->L10-2: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_13| |v_ULTIMATE.start_main_~i~0#1_12|) (<= 1 |v_ULTIMATE.start_main_~j~0#1_9|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_13|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_9|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 3#L10-2true [2023-02-13 03:39:21,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:21,954 INFO L85 PathProgramCache]: Analyzing trace with hash 77, now seen corresponding path program 1 times [2023-02-13 03:39:21,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:21,960 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358498912] [2023-02-13 03:39:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:21,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2156, now seen corresponding path program 1 times [2023-02-13 03:39:22,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:22,016 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176563119] [2023-02-13 03:39:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:22,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:39:22,056 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 03:39:22,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:39:22,057 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176563119] [2023-02-13 03:39:22,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176563119] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:39:22,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:39:22,059 ERROR L191 FreeRefinementEngine]: {9#true} [11#(<= |ULTIMATE.start_main_~j~0#1| 0)] {10#false} [2023-02-13 03:39:22,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:39:22,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104501929] [2023-02-13 03:39:22,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:39:22,066 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:39:22,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:39:22,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:39:22,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:39:22,092 INFO L87 Difference]: Start difference. First operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 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 03:39:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:39:22,101 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2023-02-13 03:39:22,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 5 transitions. [2023-02-13 03:39:22,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:22,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 5 transitions. [2023-02-13 03:39:22,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-13 03:39:22,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-13 03:39:22,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2023-02-13 03:39:22,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:39:22,106 INFO L220 hiAutomatonCegarLoop]: Abstraction has 4 states and 5 transitions. [2023-02-13 03:39:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2023-02-13 03:39:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2023-02-13 03:39:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:39:22,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2023-02-13 03:39:22,121 INFO L242 hiAutomatonCegarLoop]: Abstraction has 4 states and 5 transitions. [2023-02-13 03:39:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:39:22,127 INFO L426 stractBuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2023-02-13 03:39:22,127 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:39:22,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2023-02-13 03:39:22,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:39:22,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:39:22,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:39:22,127 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:39:22,127 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:39:22,128 INFO L733 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRY [46] ULTIMATE.startENTRY-->L10-2: Formula: (= |v_ULTIMATE.start_main_~i~0#1_8| 0) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_8|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~j~0#1] 18#L10-2 [2023-02-13 03:39:22,128 INFO L735 eck$LassoCheckResult]: Loop: 18#L10-2 [37] L10-2-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~i~0#1_7| 100) (= |v_ULTIMATE.start_main_~j~0#1_6| 0)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_6|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 16#L12-2 [34] L12-2-->L12-2: Formula: (and (< |v_ULTIMATE.start_main_~j~0#1_5| 1) (= (+ |v_ULTIMATE.start_main_~j~0#1_5| 1) |v_ULTIMATE.start_main_~j~0#1_4|)) InVars {ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_5|} OutVars{ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0#1] 17#L12-2 [48] L12-2-->L10-2: Formula: (and (= |v_ULTIMATE.start_main_~i~0#1_13| |v_ULTIMATE.start_main_~i~0#1_12|) (<= 1 |v_ULTIMATE.start_main_~j~0#1_9|)) InVars {ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_13|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_9|} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_12|, ULTIMATE.start_main_~j~0#1=|v_ULTIMATE.start_main_~j~0#1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 18#L10-2 [2023-02-13 03:39:22,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:22,128 INFO L85 PathProgramCache]: Analyzing trace with hash 77, now seen corresponding path program 2 times [2023-02-13 03:39:22,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:22,129 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169343834] [2023-02-13 03:39:22,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:22,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,133 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:22,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:22,135 INFO L85 PathProgramCache]: Analyzing trace with hash 66450, now seen corresponding path program 1 times [2023-02-13 03:39:22,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:22,135 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379162586] [2023-02-13 03:39:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:22,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,139 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:22,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:39:22,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2330566, now seen corresponding path program 1 times [2023-02-13 03:39:22,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:39:22,144 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483455607] [2023-02-13 03:39:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:39:22,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:39:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,148 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:39:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:39:22,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:39:22,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:39:22 BasicIcfg [2023-02-13 03:39:22,209 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:39:22,209 INFO L158 Benchmark]: Toolchain (without parser) took 700.09ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 62.5MB). Peak memory consumption was 58.7MB. Max. memory is 42.9GB. [2023-02-13 03:39:22,210 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 03:39:22,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 119.19ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:22,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.42ms. 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 03:39:22,211 INFO L158 Benchmark]: Boogie Preprocessor took 9.16ms. 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 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:22,211 INFO L158 Benchmark]: RCFGBuilder took 181.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:39:22,211 INFO L158 Benchmark]: BlockEncodingV2 took 34.23ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:39:22,211 INFO L158 Benchmark]: TraceAbstraction took 13.57ms. 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 03:39:22,212 INFO L158 Benchmark]: BuchiAutomizer took 313.58ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 32.0MB). Peak memory consumption was 33.6MB. Max. memory is 42.9GB. [2023-02-13 03:39:22,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 119.19ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 24.42ms. 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 9.16ms. 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 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 181.37ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 34.23ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.57ms. 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 313.58ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 32.0MB). Peak memory consumption was 33.6MB. Max. memory is 42.9GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: 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, i=0, j=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-13 03:39:22,239 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...