YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 23:32:56,109 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 23:32:56,111 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 23:32:56,122 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 23:32:56,123 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 23:32:56,124 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 23:32:56,125 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 23:32:56,127 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 23:32:56,129 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 23:32:56,129 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 23:32:56,130 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 23:32:56,130 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 23:32:56,131 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 23:32:56,132 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 23:32:56,133 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 23:32:56,134 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 23:32:56,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 23:32:56,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 23:32:56,139 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 23:32:56,140 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 23:32:56,141 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 23:32:56,142 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 23:32:56,145 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 23:32:56,145 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 23:32:56,145 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 23:32:56,146 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 23:32:56,147 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 23:32:56,148 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 23:32:56,148 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 23:32:56,149 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 23:32:56,149 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 23:32:56,150 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 23:32:56,152 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 23:32:56,152 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 23:32:56,153 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 23:32:56,153 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 23:32:56,153 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 23:32:56,154 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 23:32:56,155 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 23:32:56,155 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 23:32:56,170 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 23:32:56,171 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 23:32:56,172 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 23:32:56,172 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 23:32:56,172 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 23:32:56,172 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:32:56,173 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 23:32:56,173 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 23:32:56,173 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 23:32:56,173 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 23:32:56,173 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 23:32:56,173 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 23:32:56,174 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 23:32:56,174 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 23:32:56,174 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:32:56,174 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 23:32:56,174 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 23:32:56,174 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 23:32:56,175 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 23:32:56,175 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 23:32:56,175 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 23:32:56,175 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 23:32:56,175 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 23:32:56,175 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 23:32:56,176 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 23:32:56,176 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 23:32:56,176 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 23:32:56,176 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 23:32:56,176 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 23:32:56,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 23:32:56,216 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 23:32:56,219 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 23:32:56,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 23:32:56,221 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 23:32:56,222 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:32:56,289 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/8597c5df9f0b451ebaa7c70cf11a9b22/FLAG888f9238f !SESSION 2020-06-21 23:32:53.784 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-21 23:32:56.566 !MESSAGE Indexed 'FLAG888f9238f' (0 sources, 0 headers) in 0.008 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-21 23:32:56,649 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 23:32:56,650 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:32:56,657 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/8597c5df9f0b451ebaa7c70cf11a9b22/FLAG888f9238f [2020-06-21 23:32:57,090 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/8597c5df9f0b451ebaa7c70cf11a9b22 [2020-06-21 23:32:57,101 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 23:32:57,103 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 23:32:57,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 23:32:57,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 23:32:57,108 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 23:32:57,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1960620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 23:32:57,136 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 23:32:57,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:32:57,294 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 23:32:57,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:32:57,380 INFO L195 MainTranslator]: Completed translation [2020-06-21 23:32:57,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57 WrapperNode [2020-06-21 23:32:57,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 23:32:57,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 23:32:57,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 23:32:57,382 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 23:32:57,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 23:32:57,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 23:32:57,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 23:32:57,416 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 23:32:57,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 23:32:57,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 23:32:57,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 23:32:57,436 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 23:32:57,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (1/1) ... No working directory specified, using /export/starexec/sandbox2/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 [2020-06-21 23:32:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 23:32:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 23:32:57,631 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 23:32:57,631 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 23:32:57,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:32:57 BoogieIcfgContainer [2020-06-21 23:32:57,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 23:32:57,633 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 23:32:57,634 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 23:32:57,636 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 23:32:57,636 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:32:57" (1/1) ... [2020-06-21 23:32:57,651 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-21 23:32:57,653 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 23:32:57,653 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 23:32:57,654 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 23:32:57,654 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:32:57,656 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 23:32:57,657 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 23:32:57,657 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 23:32:57,672 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 23:32:57,686 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-21 23:32:57,691 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 23:32:57,693 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:32:57,703 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-21 23:32:57,705 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-21 23:32:57,706 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 23:32:57,707 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:32:57,712 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-21 23:32:57,713 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 23:32:57,713 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 23:32:57,713 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:32:57,714 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 23:32:57,714 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 23:32:57,714 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-21 23:32:57,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:32:57 BasicIcfg [2020-06-21 23:32:57,715 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 23:32:57,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 23:32:57,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 23:32:57,719 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 23:32:57,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 11:32:57" (1/4) ... [2020-06-21 23:32:57,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15049dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (2/4) ... [2020-06-21 23:32:57,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15049dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:32:57" (3/4) ... [2020-06-21 23:32:57,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15049dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:32:57" (4/4) ... [2020-06-21 23:32:57,723 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:32:57,733 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 23:32:57,741 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 23:32:57,758 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 23:32:57,786 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:32:57,787 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 23:32:57,787 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 23:32:57,788 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:32:57,788 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:32:57,788 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:32:57,788 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 23:32:57,788 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:32:57,788 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 23:32:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-21 23:32:57,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 23:32:57,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-21 23:32:57,862 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 23:32:57,862 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2020-06-21 23:32:57,862 INFO L451 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: true [2020-06-21 23:32:57,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:32:57 BasicIcfg [2020-06-21 23:32:57,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 23:32:57,871 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 23:32:57,871 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 23:32:57,875 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 23:32:57,875 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:32:57,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 11:32:57" (1/5) ... [2020-06-21 23:32:57,876 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c19d36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,876 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:32:57,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:32:57" (2/5) ... [2020-06-21 23:32:57,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c19d36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,877 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:32:57,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:32:57" (3/5) ... [2020-06-21 23:32:57,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c19d36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,878 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:32:57,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:32:57" (4/5) ... [2020-06-21 23:32:57,878 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c19d36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:32:57, skipping insertion in model container [2020-06-21 23:32:57,878 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:32:57,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:32:57" (5/5) ... [2020-06-21 23:32:57,880 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:32:57,906 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:32:57,907 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 23:32:57,907 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 23:32:57,907 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:32:57,907 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:32:57,907 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:32:57,907 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 23:32:57,908 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:32:57,908 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 23:32:57,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-21 23:32:57,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-21 23:32:57,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:32:57,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:32:57,933 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:32:57,933 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:32:57,934 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 23:32:57,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-21 23:32:57,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-21 23:32:57,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:32:57,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:32:57,935 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:32:57,935 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:32:57,941 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 5#L21-2true [2020-06-21 23:32:57,941 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 3#L21true [43] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 5#L21-2true [2020-06-21 23:32:57,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:57,947 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-06-21 23:32:57,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:57,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:57,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:57,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:57,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:58,023 INFO L82 PathProgramCache]: Analyzing trace with hash 2213, now seen corresponding path program 1 times [2020-06-21 23:32:58,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:58,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:58,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:58,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:58,035 INFO L82 PathProgramCache]: Analyzing trace with hash 77171, now seen corresponding path program 1 times [2020-06-21 23:32:58,035 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:58,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:58,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:58,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:32:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 23:32:58,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 23:32:58,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-21 23:32:58,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 23:32:58,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 23:32:58,136 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-21 23:32:58,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 23:32:58,154 INFO L93 Difference]: Finished difference Result 5 states and 6 transitions. [2020-06-21 23:32:58,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 23:32:58,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 6 transitions. [2020-06-21 23:32:58,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-21 23:32:58,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 6 transitions. [2020-06-21 23:32:58,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-21 23:32:58,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-21 23:32:58,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2020-06-21 23:32:58,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-21 23:32:58,164 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-06-21 23:32:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2020-06-21 23:32:58,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-06-21 23:32:58,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-21 23:32:58,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2020-06-21 23:32:58,192 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-06-21 23:32:58,192 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-06-21 23:32:58,192 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-21 23:32:58,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2020-06-21 23:32:58,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-21 23:32:58,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:32:58,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:32:58,194 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-21 23:32:58,194 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:32:58,195 INFO L794 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 22#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 19#L21 [30] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (= v_ULTIMATE.start_main_~v1~0_1 (+ v_ULTIMATE.start_main_~v1~0_2 (- 1)))) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~v1~0] 20#L21-2 [2020-06-21 23:32:58,195 INFO L796 eck$LassoCheckResult]: Loop: 20#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 23#L21 [43] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 20#L21-2 [2020-06-21 23:32:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:58,195 INFO L82 PathProgramCache]: Analyzing trace with hash 77158, now seen corresponding path program 1 times [2020-06-21 23:32:58,195 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:58,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:58,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:58,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:58,209 INFO L82 PathProgramCache]: Analyzing trace with hash 2213, now seen corresponding path program 2 times [2020-06-21 23:32:58,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:58,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:58,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:58,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:58,216 INFO L82 PathProgramCache]: Analyzing trace with hash 74150090, now seen corresponding path program 1 times [2020-06-21 23:32:58,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:58,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:58,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,217 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 23:32:58,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:58,325 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:32:58,327 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:32:58,327 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:32:58,327 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:32:58,327 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:32:58,327 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:32:58,327 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:32:58,327 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:32:58,328 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-06-21 23:32:58,328 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:32:58,328 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:32:58,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,510 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:32:58,511 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 [2020-06-21 23:32:58,518 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:58,519 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:58,527 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:32:58,527 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 [2020-06-21 23:32:58,556 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:58,556 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:58,583 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:32:58,584 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/sandbox2/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 [2020-06-21 23:32:58,588 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:58,588 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:58,592 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:32:58,592 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 [2020-06-21 23:32:58,619 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:58,619 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:58,623 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:32:58,623 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 [2020-06-21 23:32:58,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:58,654 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:58,681 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:32:58,682 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/sandbox2/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 [2020-06-21 23:32:58,686 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:58,687 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 [2020-06-21 23:32:58,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:32:58,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:58,827 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-21 23:32:58,831 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:32:58,831 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:32:58,831 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:32:58,831 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:32:58,831 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-21 23:32:58,831 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-21 23:32:58,832 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:32:58,832 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:32:58,832 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-06-21 23:32:58,832 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:32:58,832 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:32:58,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:58,955 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:32:58,961 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-21 23:32:58,963 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 [2020-06-21 23:32:58,965 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:58,965 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:32:58,966 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:58,966 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:58,966 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:58,968 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:32:58,969 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:32:58,971 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:32:58,972 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 [2020-06-21 23:32:58,972 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:58,973 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:58,973 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:58,973 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:58,976 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:32:58,976 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:32:58,981 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:32:58,981 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 [2020-06-21 23:32:58,982 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:58,982 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:32:58,982 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:58,983 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:58,983 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:58,983 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:32:58,983 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:32:58,984 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:32:58,985 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 [2020-06-21 23:32:58,985 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:58,985 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:32:58,986 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:58,986 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:58,986 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:58,986 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:32:58,986 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:32:58,987 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:32:58,988 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 [2020-06-21 23:32:58,988 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:58,988 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:58,989 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:58,989 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:58,992 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:32:58,992 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:32:59,007 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:32:59,007 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 [2020-06-21 23:32:59,008 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:59,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:59,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:59,009 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:59,011 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:32:59,011 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:32:59,017 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:32:59,018 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 [2020-06-21 23:32:59,019 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:59,019 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:59,019 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:59,019 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:59,021 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:32:59,022 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:32:59,041 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-21 23:32:59,053 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-21 23:32:59,053 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-21 23:32:59,056 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-21 23:32:59,059 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-06-21 23:32:59,059 INFO L518 LassoAnalysis]: Proved termination. [2020-06-21 23:32:59,060 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = 2*ULTIMATE.start_main_~v2~0 - 2*ULTIMATE.start_main_~m~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2020-06-21 23:32:59,067 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-06-21 23:32:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:32:59,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-21 23:32:59,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:32:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:32:59,152 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-21 23:32:59,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:32:59,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 23:32:59,174 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-21 23:32:59,177 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-06-21 23:32:59,178 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 4 states. [2020-06-21 23:32:59,229 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 14 states and 20 transitions. Complement of second has 11 states. [2020-06-21 23:32:59,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-21 23:32:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-21 23:32:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-06-21 23:32:59,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-21 23:32:59,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:32:59,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-21 23:32:59,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:32:59,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-21 23:32:59,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:32:59,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2020-06-21 23:32:59,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-21 23:32:59,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 15 transitions. [2020-06-21 23:32:59,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-21 23:32:59,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-21 23:32:59,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-06-21 23:32:59,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-21 23:32:59,243 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-06-21 23:32:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-06-21 23:32:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 6. [2020-06-21 23:32:59,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-21 23:32:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-06-21 23:32:59,244 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-21 23:32:59,244 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-21 23:32:59,244 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-21 23:32:59,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-06-21 23:32:59,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-21 23:32:59,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:32:59,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:32:59,245 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 23:32:59,246 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:32:59,246 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 96#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 91#L21 [2020-06-21 23:32:59,246 INFO L796 eck$LassoCheckResult]: Loop: 91#L21 [30] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (= v_ULTIMATE.start_main_~v1~0_1 (+ v_ULTIMATE.start_main_~v1~0_2 (- 1)))) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~v1~0] 92#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 91#L21 [2020-06-21 23:32:59,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,246 INFO L82 PathProgramCache]: Analyzing trace with hash 2488, now seen corresponding path program 1 times [2020-06-21 23:32:59,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:59,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:59,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:59,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1930, now seen corresponding path program 1 times [2020-06-21 23:32:59,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:59,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:59,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:59,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,262 INFO L82 PathProgramCache]: Analyzing trace with hash 2391937, now seen corresponding path program 2 times [2020-06-21 23:32:59,262 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:59,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:59,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:59,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,291 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:32:59,291 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:32:59,291 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:32:59,291 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:32:59,291 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:32:59,291 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:32:59,292 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:32:59,292 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:32:59,292 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-21 23:32:59,293 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:32:59,293 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:32:59,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,363 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:32:59,364 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 [2020-06-21 23:32:59,369 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:59,369 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:59,398 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:32:59,398 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/sandbox2/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 [2020-06-21 23:32:59,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:59,406 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:59,433 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:32:59,434 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/sandbox2/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 [2020-06-21 23:32:59,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:32:59,445 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:32:59,477 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:32:59,477 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:32:59,659 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-21 23:32:59,662 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:32:59,662 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:32:59,662 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:32:59,663 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:32:59,663 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-21 23:32:59,663 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-21 23:32:59,663 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:32:59,663 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:32:59,664 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-21 23:32:59,664 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:32:59,664 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:32:59,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,761 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:32:59,761 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-21 23:32:59,761 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 [2020-06-21 23:32:59,762 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:59,762 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:59,762 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:59,763 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:59,764 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:32:59,764 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:32:59,768 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:32:59,768 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 [2020-06-21 23:32:59,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:32:59,769 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:32:59,769 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:32:59,769 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:32:59,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:32:59,770 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:32:59,770 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:32:59,775 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-21 23:32:59,779 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-21 23:32:59,779 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-21 23:32:59,779 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-21 23:32:59,779 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-21 23:32:59,780 INFO L518 LassoAnalysis]: Proved termination. [2020-06-21 23:32:59,780 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~v2~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~v2~0 Supporting invariants [] [2020-06-21 23:32:59,780 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-21 23:32:59,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:32:59,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-21 23:32:59,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:32:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:32:59,807 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:32:59,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:32:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 23:32:59,844 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-21 23:32:59,845 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 3 loop predicates [2020-06-21 23:32:59,845 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-06-21 23:32:59,855 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2020-06-21 23:32:59,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-21 23:32:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-21 23:32:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-21 23:32:59,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-21 23:32:59,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:32:59,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-21 23:32:59,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:32:59,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-21 23:32:59,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:32:59,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2020-06-21 23:32:59,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-06-21 23:32:59,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 10 transitions. [2020-06-21 23:32:59,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-21 23:32:59,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-06-21 23:32:59,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2020-06-21 23:32:59,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-21 23:32:59,861 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-06-21 23:32:59,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2020-06-21 23:32:59,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-06-21 23:32:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-21 23:32:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-06-21 23:32:59,863 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-21 23:32:59,863 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-21 23:32:59,863 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-21 23:32:59,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-06-21 23:32:59,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-21 23:32:59,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:32:59,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:32:59,864 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 23:32:59,864 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-06-21 23:32:59,864 INFO L794 eck$LassoCheckResult]: Stem: 144#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L21-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~v1~0_9) (= 0 v_ULTIMATE.start_main_~v2~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~v1~0] 145#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 141#L21 [2020-06-21 23:32:59,864 INFO L796 eck$LassoCheckResult]: Loop: 141#L21 [30] L21-->L21-2: Formula: (and (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (= v_ULTIMATE.start_main_~v1~0_1 (+ v_ULTIMATE.start_main_~v1~0_2 (- 1)))) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~v1~0] 142#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 146#L21 [43] L21-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 147#L21-2 [39] L21-2-->L21: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 141#L21 [2020-06-21 23:32:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2488, now seen corresponding path program 2 times [2020-06-21 23:32:59,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:59,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:59,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,867 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 23:32:59,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1856102, now seen corresponding path program 1 times [2020-06-21 23:32:59,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:59,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:59,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,874 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 23:32:59,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:32:59,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1996314467, now seen corresponding path program 2 times [2020-06-21 23:32:59,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:32:59,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:32:59,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:32:59,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:32:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:32:59,928 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:32:59,928 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:32:59,928 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:32:59,928 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:32:59,928 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:32:59,929 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:32:59,929 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:32:59,929 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:32:59,929 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-21 23:32:59,929 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:32:59,930 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:32:59,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:32:59,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:33:00,004 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:33:00,005 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:33:00,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:33:00,010 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:33:00,037 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:33:00,038 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:33:00,042 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:33:00,043 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:33:00,063 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:33:00,063 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:33:00,090 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:33:00,090 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:33:00,117 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:33:00,117 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:33:00,123 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:33:00,123 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:33:00,155 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:33:00,156 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:33:00,232 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-21 23:33:00,234 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:33:00,235 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:33:00,235 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:33:00,235 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:33:00,235 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-21 23:33:00,235 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-21 23:33:00,235 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:33:00,235 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:33:00,235 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-06-21 23:33:00,236 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:33:00,236 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:33:00,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:33:00,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:33:00,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:33:00,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 23:33:00,304 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:33:00,305 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-21 23:33:00,305 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 [2020-06-21 23:33:00,306 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:33:00,306 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:33:00,306 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:33:00,306 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:33:00,308 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:33:00,308 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:33:00,312 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:33:00,312 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 [2020-06-21 23:33:00,313 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:33:00,313 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:33:00,313 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:33:00,313 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:33:00,313 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:33:00,314 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:33:00,314 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:33:00,317 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:33:00,317 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 [2020-06-21 23:33:00,318 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:33:00,318 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:33:00,318 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:33:00,318 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:33:00,321 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:33:00,321 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:33:00,324 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:33:00,324 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 [2020-06-21 23:33:00,325 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:33:00,325 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:33:00,325 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:33:00,325 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:33:00,325 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:33:00,326 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:33:00,326 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:33:00,329 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-21 23:33:00,331 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-21 23:33:00,331 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-21 23:33:00,331 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-21 23:33:00,332 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-21 23:33:00,332 INFO L518 LassoAnalysis]: Proved termination. [2020-06-21 23:33:00,332 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0) = 1*ULTIMATE.start_main_~v1~0 Supporting invariants [] [2020-06-21 23:33:00,332 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-21 23:33:00,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:33:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:33:00,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-21 23:33:00,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:33:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:33:00,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:33:00,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:33:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 23:33:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:33:00,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:33:00,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:33:00,404 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-21 23:33:00,404 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 3 loop predicates [2020-06-21 23:33:00,404 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2020-06-21 23:33:00,442 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 8 states. [2020-06-21 23:33:00,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-21 23:33:00,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-21 23:33:00,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-06-21 23:33:00,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-21 23:33:00,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:33:00,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-21 23:33:00,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:33:00,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-21 23:33:00,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:33:00,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2020-06-21 23:33:00,447 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-21 23:33:00,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-06-21 23:33:00,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-21 23:33:00,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-21 23:33:00,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-21 23:33:00,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-21 23:33:00,447 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-21 23:33:00,448 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-21 23:33:00,448 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-21 23:33:00,448 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-21 23:33:00,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-21 23:33:00,448 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-21 23:33:00,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-21 23:33:00,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:33:00 BasicIcfg [2020-06-21 23:33:00,454 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 23:33:00,455 INFO L168 Benchmark]: Toolchain (without parser) took 3352.86 ms. Allocated memory was 649.6 MB in the beginning and 749.7 MB in the end (delta: 100.1 MB). Free memory was 565.2 MB in the beginning and 657.1 MB in the end (delta: -91.9 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,456 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 23:33:00,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.98 ms. Allocated memory was 649.6 MB in the beginning and 671.1 MB in the end (delta: 21.5 MB). Free memory was 565.2 MB in the beginning and 638.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 671.1 MB. Free memory was 638.7 MB in the beginning and 637.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,458 INFO L168 Benchmark]: Boogie Preprocessor took 19.84 ms. Allocated memory is still 671.1 MB. Free memory was 635.9 MB in the beginning and 634.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,459 INFO L168 Benchmark]: RCFGBuilder took 197.00 ms. Allocated memory is still 671.1 MB. Free memory was 634.2 MB in the beginning and 619.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,459 INFO L168 Benchmark]: BlockEncodingV2 took 81.43 ms. Allocated memory is still 671.1 MB. Free memory was 619.9 MB in the beginning and 613.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,460 INFO L168 Benchmark]: TraceAbstraction took 154.84 ms. Allocated memory is still 671.1 MB. Free memory was 613.4 MB in the beginning and 603.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,460 INFO L168 Benchmark]: BuchiAutomizer took 2583.04 ms. Allocated memory was 671.1 MB in the beginning and 749.7 MB in the end (delta: 78.6 MB). Free memory was 603.9 MB in the beginning and 657.1 MB in the end (delta: -53.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 50.3 GB. [2020-06-21 23:33:00,464 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 586.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 276.98 ms. Allocated memory was 649.6 MB in the beginning and 671.1 MB in the end (delta: 21.5 MB). Free memory was 565.2 MB in the beginning and 638.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 671.1 MB. Free memory was 638.7 MB in the beginning and 637.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.84 ms. Allocated memory is still 671.1 MB. Free memory was 635.9 MB in the beginning and 634.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 197.00 ms. Allocated memory is still 671.1 MB. Free memory was 634.2 MB in the beginning and 619.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.43 ms. Allocated memory is still 671.1 MB. Free memory was 619.9 MB in the beginning and 613.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.84 ms. Allocated memory is still 671.1 MB. Free memory was 613.4 MB in the beginning and 603.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2583.04 ms. Allocated memory was 671.1 MB in the beginning and 749.7 MB in the end (delta: 78.6 MB). Free memory was 603.9 MB in the beginning and 657.1 MB in the end (delta: -53.2 MB). Peak memory consumption was 25.5 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: 20]: 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function 2 * v2 + -2 * m + 1 and consists of 5 locations. One nondeterministic module has affine ranking function m + -1 * v2 and consists of 3 locations. One nondeterministic module has affine ranking function v1 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 12 SDtfs, 24 SDslu, 8 SDs, 0 SdLazy, 31 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf92 smp100 dnf100 smp100 tf108 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 23:33:00.694 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check