YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:30:58,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:30:58,554 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:30:58,565 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:30:58,566 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:30:58,567 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:30:58,568 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:30:58,569 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:30:58,571 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:30:58,572 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:30:58,572 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:30:58,573 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:30:58,574 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:30:58,574 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:30:58,575 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:30:58,576 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:30:58,577 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:30:58,579 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:30:58,580 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:30:58,582 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:30:58,583 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:30:58,584 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:30:58,586 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:30:58,586 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:30:58,586 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:30:58,587 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:30:58,588 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:30:58,589 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:30:58,589 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:30:58,589 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:30:58,590 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:30:58,591 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:30:58,592 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:30:58,592 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:30:58,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:30:58,593 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:30:58,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:30:58,594 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:30:58,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:30:58,595 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 09:30:58,609 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:30:58,609 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:30:58,610 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:30:58,611 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:30:58,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:30:58,611 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:30:58,611 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:30:58,611 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:30:58,611 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:30:58,612 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:30:58,612 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:30:58,612 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:30:58,612 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:30:58,612 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:30:58,613 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:30:58,613 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:30:58,613 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:30:58,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:30:58,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:30:58,613 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:30:58,614 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:30:58,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:30:58,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:30:58,614 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:30:58,614 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:30:58,615 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:30:58,615 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:30:58,615 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:30:58,615 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:30:58,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:30:58,654 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:30:58,658 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:30:58,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:30:58,660 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:30:58,660 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:30:58,732 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/e2763fdea181452e9fc9ebf51dd94632/FLAG6e29d51a6 [2020-06-22 09:30:59,074 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:30:59,075 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:30:59,081 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/e2763fdea181452e9fc9ebf51dd94632/FLAG6e29d51a6 [2020-06-22 09:30:59,510 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/e2763fdea181452e9fc9ebf51dd94632 [2020-06-22 09:30:59,528 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:30:59,530 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:30:59,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:30:59,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:30:59,538 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:30:59,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e29dd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59, skipping insertion in model container [2020-06-22 09:30:59,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:30:59,579 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:30:59,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:30:59,749 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:30:59,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:30:59,847 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:30:59,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59 WrapperNode [2020-06-22 09:30:59,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:30:59,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:30:59,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:30:59,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:30:59,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:30:59,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:30:59,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:30:59,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:30:59,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... [2020-06-22 09:30:59,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:30:59,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:30:59,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:30:59,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:30:59,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:30:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:30:59,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:31:00,145 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:31:00,146 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 09:31:00,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:31:00 BoogieIcfgContainer [2020-06-22 09:31:00,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:31:00,148 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:31:00,148 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:31:00,150 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:31:00,151 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:31:00" (1/1) ... [2020-06-22 09:31:00,166 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 10 edges [2020-06-22 09:31:00,168 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:31:00,168 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:31:00,169 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:31:00,169 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:31:00,171 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:31:00,172 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:31:00,173 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:31:00,188 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:31:00,202 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 09:31:00,206 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 09:31:00,208 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:31:00,218 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 09:31:00,221 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-22 09:31:00,223 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:31:00,223 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:31:00,223 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:31:00,224 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:31:00,224 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 09:31:00,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:31:00 BasicIcfg [2020-06-22 09:31:00,225 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:31:00,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:31:00,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:31:00,231 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:31:00,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:30:59" (1/4) ... [2020-06-22 09:31:00,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465a2d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:31:00, skipping insertion in model container [2020-06-22 09:31:00,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (2/4) ... [2020-06-22 09:31:00,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465a2d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:31:00, skipping insertion in model container [2020-06-22 09:31:00,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:31:00" (3/4) ... [2020-06-22 09:31:00,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465a2d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:31:00, skipping insertion in model container [2020-06-22 09:31:00,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:31:00" (4/4) ... [2020-06-22 09:31:00,237 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:31:00,250 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:31:00,261 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:31:00,284 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:31:00,319 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:31:00,320 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:31:00,320 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:31:00,320 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:31:00,320 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:31:00,320 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:31:00,321 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:31:00,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:31:00,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:31:00,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 09:31:00,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:31:00,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 09:31:00,402 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:31:00,403 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: true [2020-06-22 09:31:00,403 INFO L451 ceAbstractionStarter]: At program point L14-3(lines 13 18) the Hoare annotation is: true [2020-06-22 09:31:00,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:31:00 BasicIcfg [2020-06-22 09:31:00,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:31:00,418 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:31:00,419 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:31:00,424 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:31:00,425 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:31:00,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:30:59" (1/5) ... [2020-06-22 09:31:00,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c09cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:31:00, skipping insertion in model container [2020-06-22 09:31:00,426 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:31:00,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:30:59" (2/5) ... [2020-06-22 09:31:00,427 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c09cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:31:00, skipping insertion in model container [2020-06-22 09:31:00,427 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:31:00,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:31:00" (3/5) ... [2020-06-22 09:31:00,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c09cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:31:00, skipping insertion in model container [2020-06-22 09:31:00,428 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:31:00,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:31:00" (4/5) ... [2020-06-22 09:31:00,429 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c09cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:31:00, skipping insertion in model container [2020-06-22 09:31:00,429 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:31:00,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:31:00" (5/5) ... [2020-06-22 09:31:00,431 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:31:00,467 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:31:00,467 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:31:00,467 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:31:00,468 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:31:00,468 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:31:00,468 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:31:00,468 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:31:00,469 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:31:00,469 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:31:00,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 09:31:00,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 09:31:00,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:31:00,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:31:00,499 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:31:00,499 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:31:00,499 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:31:00,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 09:31:00,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 09:31:00,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:31:00,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:31:00,501 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:31:00,501 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:31:00,506 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [30] ULTIMATE.startENTRY-->L14-3: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L14-3true [2020-06-22 09:31:00,506 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-3true [33] L14-3-->L14-2: Formula: (and (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 5#L14-2true [41] L14-2-->L14-3: Formula: (>= v_ULTIMATE.start_main_~z~0_6 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[] 4#L14-3true [2020-06-22 09:31:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:00,512 INFO L82 PathProgramCache]: Analyzing trace with hash 61, now seen corresponding path program 1 times [2020-06-22 09:31:00,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:00,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:00,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:31:00,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:00,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2025, now seen corresponding path program 1 times [2020-06-22 09:31:00,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:00,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:00,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:31:00,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:31:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:31:00,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 09:31:00,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 09:31:00,655 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 09:31:00,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 09:31:00,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 09:31:00,672 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-22 09:31:00,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 09:31:00,691 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-06-22 09:31:00,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 09:31:00,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 5 transitions. [2020-06-22 09:31:00,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:31:00,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 09:31:00,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 09:31:00,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 09:31:00,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2020-06-22 09:31:00,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:31:00,702 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 09:31:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2020-06-22 09:31:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-06-22 09:31:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:31:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-06-22 09:31:00,734 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 09:31:00,734 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-06-22 09:31:00,734 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 09:31:00,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-06-22 09:31:00,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:31:00,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:31:00,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:31:00,736 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:31:00,736 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:31:00,736 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L14-3: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 17#L14-3 [2020-06-22 09:31:00,737 INFO L796 eck$LassoCheckResult]: Loop: 17#L14-3 [33] L14-3-->L14-2: Formula: (and (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 18#L14-2 [37] L14-2-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (< v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 19#L14-2 [41] L14-2-->L14-3: Formula: (>= v_ULTIMATE.start_main_~z~0_6 v_ULTIMATE.start_main_~y~0_6) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[] 17#L14-3 [2020-06-22 09:31:00,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:00,737 INFO L82 PathProgramCache]: Analyzing trace with hash 61, now seen corresponding path program 2 times [2020-06-22 09:31:00,737 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:00,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:00,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:31:00,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:00,745 INFO L82 PathProgramCache]: Analyzing trace with hash 62692, now seen corresponding path program 1 times [2020-06-22 09:31:00,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:00,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:00,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,747 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 09:31:00,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:00,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1850152, now seen corresponding path program 1 times [2020-06-22 09:31:00,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:00,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:00,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:31:00,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:00,840 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:31:00,841 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:31:00,841 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:31:00,841 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:31:00,841 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:31:00,842 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:00,842 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:31:00,842 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:31:00,842 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:31:00,842 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:31:00,842 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:31:00,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:00,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:00,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:01,001 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:31:01,001 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:01,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:31:01,010 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:31:01,043 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:31:01,043 INFO L448 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: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:01,050 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:31:01,050 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:31:01,079 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:31:01,080 INFO L448 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: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:01,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:31:01,085 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:01,123 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:31:01,123 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:31:01,542 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:31:01,545 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:31:01,565 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:31:01,565 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:31:01,565 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:31:01,565 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:31:01,565 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:31:01,565 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:31:01,566 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:31:01,566 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:31:01,566 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:31:01,566 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:31:01,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:01,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:01,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:01,666 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:31:01,672 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:31:01,674 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:31:01,675 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:31:01,675 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:31:01,676 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:31:01,676 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:31:01,680 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:31:01,680 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:31:01,687 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:31:01,687 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:31:01,688 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:31:01,688 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:31:01,688 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:31:01,688 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:31:01,690 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:31:01,691 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:31:01,699 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:31:01,700 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:31:01,700 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:31:01,700 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:31:01,701 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:31:01,701 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:31:01,701 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:31:01,703 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:31:01,703 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:31:01,714 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:31:01,725 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 09:31:01,726 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:31:01,728 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:31:01,728 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:31:01,728 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:31:01,729 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-06-22 09:31:01,730 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:31:01,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:31:01,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:31:01,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:31:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:31:01,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:31:01,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:31:01,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:31:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:31:01,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:31:01,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:31:01,887 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-06-22 09:31:01,890 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-06-22 09:31:01,891 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2020-06-22 09:31:02,033 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 15 states and 20 transitions. Complement of second has 11 states. [2020-06-22 09:31:02,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 09:31:02,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:31:02,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2020-06-22 09:31:02,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 09:31:02,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:31:02,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 09:31:02,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:31:02,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 09:31:02,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:31:02,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-06-22 09:31:02,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 09:31:02,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 6 states and 6 transitions. [2020-06-22 09:31:02,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 09:31:02,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 09:31:02,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2020-06-22 09:31:02,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:31:02,048 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-06-22 09:31:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2020-06-22 09:31:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 3. [2020-06-22 09:31:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 09:31:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2020-06-22 09:31:02,050 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 09:31:02,050 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 09:31:02,050 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 09:31:02,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2020-06-22 09:31:02,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 09:31:02,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:31:02,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:31:02,051 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:31:02,051 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 09:31:02,051 INFO L794 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L14-3: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 91#L14-3 [33] L14-3-->L14-2: Formula: (and (< v_ULTIMATE.start_main_~z~0_9 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 92#L14-2 [2020-06-22 09:31:02,052 INFO L796 eck$LassoCheckResult]: Loop: 92#L14-2 [37] L14-2-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1))) (< v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 92#L14-2 [2020-06-22 09:31:02,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:02,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2020-06-22 09:31:02,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:02,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:02,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:02,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:31:02,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:02,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:02,062 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-06-22 09:31:02,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:02,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:02,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:02,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:31:02,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:02,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:02,069 INFO L82 PathProgramCache]: Analyzing trace with hash 59681, now seen corresponding path program 1 times [2020-06-22 09:31:02,069 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:31:02,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:31:02,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:02,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:31:02,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:31:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:31:02,104 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:31:02,104 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:31:02,104 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:31:02,104 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:31:02,104 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:31:02,104 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:02,105 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:31:02,105 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:31:02,105 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:31:02,105 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:31:02,105 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:31:02,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,181 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:31:02,182 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:02,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:31:02,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:31:02,215 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:31:02,215 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:02,229 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:31:02,229 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:02,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:31:02,263 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:31:02,283 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:31:02,283 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-3}, {ULTIMATE.start_main_~x~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:02,314 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:31:02,315 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:31:02,343 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:31:02,344 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:02,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:31:02,352 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:31:02,386 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:31:02,386 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:31:02,612 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:31:02,617 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:31:02,617 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:31:02,618 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:31:02,618 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:31:02,618 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:31:02,618 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:31:02,619 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:31:02,619 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:31:02,619 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 09:31:02,619 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:31:02,619 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:31:02,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:31:02,703 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:31:02,704 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:31:02,704 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:31:02,705 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:31:02,705 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:31:02,705 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:31:02,705 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:31:02,707 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:31:02,707 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:31:02,711 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:31:02,711 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:31:02,712 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:31:02,712 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:31:02,712 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:31:02,712 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:31:02,713 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:31:02,713 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:31:02,713 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:31:02,717 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:31:02,717 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:31:02,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:31:02,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:31:02,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:31:02,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:31:02,720 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:31:02,720 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:31:02,727 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:31:02,728 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:31:02,728 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:31:02,729 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:31:02,729 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:31:02,729 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:31:02,729 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:31:02,730 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:31:02,730 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:31:02,735 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:31:02,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:31:02,739 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:31:02,739 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:31:02,739 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:31:02,740 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:31:02,740 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-06-22 09:31:02,740 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:31:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:31:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:31:02,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:31:02,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:31:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:31:02,781 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:31:02,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:31:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:31:02,782 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 09:31:02,783 INFO L152 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 [2020-06-22 09:31:02,783 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1 Second operand 2 states. [2020-06-22 09:31:02,787 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1. Second operand 2 states. Result 4 states and 4 transitions. Complement of second has 2 states. [2020-06-22 09:31:02,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 09:31:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 09:31:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2020-06-22 09:31:02,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 09:31:02,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:31:02,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 09:31:02,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:31:02,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 09:31:02,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:31:02,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 4 transitions. [2020-06-22 09:31:02,790 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:31:02,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 0 states and 0 transitions. [2020-06-22 09:31:02,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 09:31:02,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 09:31:02,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 09:31:02,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:31:02,791 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:31:02,791 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:31:02,791 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:31:02,791 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 09:31:02,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 09:31:02,792 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:31:02,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 09:31:02,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:31:02 BasicIcfg [2020-06-22 09:31:02,798 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:31:02,799 INFO L168 Benchmark]: Toolchain (without parser) took 3270.30 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 566.0 MB in the beginning and 434.9 MB in the end (delta: 131.1 MB). Peak memory consumption was 164.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,800 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:31:02,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.99 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 564.9 MB in the beginning and 649.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 682.6 MB. Free memory was 649.6 MB in the beginning and 646.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,802 INFO L168 Benchmark]: Boogie Preprocessor took 18.73 ms. Allocated memory is still 682.6 MB. Free memory was 646.8 MB in the beginning and 645.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,803 INFO L168 Benchmark]: RCFGBuilder took 244.76 ms. Allocated memory is still 682.6 MB. Free memory was 645.7 MB in the beginning and 632.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,804 INFO L168 Benchmark]: BlockEncodingV2 took 77.03 ms. Allocated memory is still 682.6 MB. Free memory was 632.0 MB in the beginning and 627.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,804 INFO L168 Benchmark]: TraceAbstraction took 191.40 ms. Allocated memory is still 682.6 MB. Free memory was 626.6 MB in the beginning and 617.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,805 INFO L168 Benchmark]: BuchiAutomizer took 2379.67 ms. Allocated memory is still 682.6 MB. Free memory was 617.9 MB in the beginning and 434.9 MB in the end (delta: 183.1 MB). Peak memory consumption was 183.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:31:02,809 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 10 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 315.99 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 564.9 MB in the beginning and 649.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 682.6 MB. Free memory was 649.6 MB in the beginning and 646.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.73 ms. Allocated memory is still 682.6 MB. Free memory was 646.8 MB in the beginning and 645.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 244.76 ms. Allocated memory is still 682.6 MB. Free memory was 645.7 MB in the beginning and 632.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.03 ms. Allocated memory is still 682.6 MB. Free memory was 632.0 MB in the beginning and 627.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 191.40 ms. Allocated memory is still 682.6 MB. Free memory was 626.6 MB in the beginning and 617.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2379.67 ms. Allocated memory is still 682.6 MB. Free memory was 617.9 MB in the beginning and 434.9 MB in the end (delta: 183.1 MB). Peak memory consumption was 183.1 MB. Max. memory is 50.3 GB. * 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. - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x + -1 * z and consists of 7 locations. One nondeterministic module has affine ranking function y + -1 * z and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 8 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 32 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax168 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 09:30:56.062 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 09:31:03.048 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check