YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:33:11,139 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:33:11,141 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:33:11,153 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:33:11,153 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:33:11,154 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:33:11,155 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:33:11,157 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:33:11,158 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:33:11,159 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:33:11,160 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:33:11,160 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:33:11,161 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:33:11,162 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:33:11,163 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:33:11,163 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:33:11,164 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:33:11,166 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:33:11,168 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:33:11,169 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:33:11,170 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:33:11,171 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:33:11,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:33:11,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:33:11,174 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:33:11,174 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:33:11,175 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:33:11,176 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:33:11,176 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:33:11,177 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:33:11,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:33:11,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:33:11,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:33:11,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:33:11,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:33:11,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:33:11,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:33:11,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:33:11,182 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:33:11,182 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 02:33:11,197 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:33:11,197 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:33:11,198 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:33:11,198 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:33:11,198 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:33:11,198 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:33:11,198 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:33:11,199 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:33:11,199 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:33:11,199 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:33:11,199 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:33:11,199 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:33:11,199 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:33:11,200 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:33:11,200 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:33:11,200 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:33:11,200 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:33:11,200 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:33:11,200 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:33:11,201 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:33:11,201 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:33:11,201 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:33:11,201 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:33:11,201 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:33:11,201 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:33:11,202 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:33:11,202 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:33:11,202 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:33:11,202 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:33:11,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:33:11,241 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:33:11,245 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:33:11,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:33:11,246 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:33:11,247 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:33:11,308 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/ce578655183040d187b57bb566d1dd23/FLAG10c51a0ef !SESSION 2020-06-22 02:33:08.823 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 02:33:11.574 !MESSAGE Indexed 'FLAG10c51a0ef' (0 sources, 0 headers) in 0.007 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 02:33:11,649 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:33:11,650 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:33:11,657 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/ce578655183040d187b57bb566d1dd23/FLAG10c51a0ef [2020-06-22 02:33:12,106 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/ce578655183040d187b57bb566d1dd23 [2020-06-22 02:33:12,117 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:33:12,119 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:33:12,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:33:12,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:33:12,123 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:33:12,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405e6761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:33:12,152 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:33:12,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:33:12,313 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:33:12,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:33:12,401 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:33:12,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12 WrapperNode [2020-06-22 02:33:12,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:33:12,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:33:12,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:33:12,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:33:12,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:33:12,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:33:12,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:33:12,440 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:33:12,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:33:12,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:33:12,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:33:12,462 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:33:12,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (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 [2020-06-22 02:33:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:33:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:33:12,668 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:33:12,669 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 02:33:12,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:33:12 BoogieIcfgContainer [2020-06-22 02:33:12,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:33:12,671 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:33:12,671 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:33:12,674 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:33:12,675 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:33:12" (1/1) ... [2020-06-22 02:33:12,696 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 02:33:12,697 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:33:12,698 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:33:12,699 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:33:12,699 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:33:12,701 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:33:12,702 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:33:12,702 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:33:12,723 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:33:12,731 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 02:33:12,736 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 02:33:12,738 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:33:12,750 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 02:33:12,752 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 02:33:12,754 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:33:12,754 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:33:12,754 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:33:12,754 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:33:12,755 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 02:33:12,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:33:12 BasicIcfg [2020-06-22 02:33:12,755 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:33:12,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:33:12,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:33:12,759 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:33:12,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:33:12" (1/4) ... [2020-06-22 02:33:12,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e35b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (2/4) ... [2020-06-22 02:33:12,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e35b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:33:12" (3/4) ... [2020-06-22 02:33:12,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e35b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:33:12" (4/4) ... [2020-06-22 02:33:12,764 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:33:12,774 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:33:12,781 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:33:12,798 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:33:12,826 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:33:12,827 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:33:12,827 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:33:12,827 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:33:12,827 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:33:12,828 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:33:12,828 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:33:12,828 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:33:12,828 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:33:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 02:33:12,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:33:12,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 02:33:12,900 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 21) no Hoare annotation was computed. [2020-06-22 02:33:12,900 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 15 22) the Hoare annotation is: true [2020-06-22 02:33:12,900 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:33:12,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:33:12 BasicIcfg [2020-06-22 02:33:12,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:33:12,909 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:33:12,909 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:33:12,912 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:33:12,913 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:33:12,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:33:12" (1/5) ... [2020-06-22 02:33:12,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fe01a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,914 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:33:12,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:33:12" (2/5) ... [2020-06-22 02:33:12,915 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fe01a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,915 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:33:12,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:33:12" (3/5) ... [2020-06-22 02:33:12,915 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fe01a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,915 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:33:12,916 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:33:12" (4/5) ... [2020-06-22 02:33:12,916 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fe01a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:33:12, skipping insertion in model container [2020-06-22 02:33:12,916 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:33:12,916 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:33:12" (5/5) ... [2020-06-22 02:33:12,917 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:33:12,944 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:33:12,945 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:33:12,945 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:33:12,945 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:33:12,945 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:33:12,945 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:33:12,945 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:33:12,946 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:33:12,946 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:33:12,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 02:33:12,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:33:12,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:33:12,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:33:12,973 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:33:12,973 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:33:12,973 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:33:12,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 02:33:12,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:33:12,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:33:12,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:33:12,974 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:33:12,974 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:33:12,981 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [24] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~N~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~i~0_1 v_ULTIMATE.start_main_~N~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0] 5#L16-2true [2020-06-22 02:33:12,981 INFO L796 eck$LassoCheckResult]: Loop: 5#L16-2true [32] L16-2-->L16: Formula: (< 0 v_ULTIMATE.start_main_~i~0_5) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 4#L16true [34] L16-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_6 v_ULTIMATE.start_main_~N~0_4) (>= 0 v_ULTIMATE.start_main_~j~0_7) (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_6 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_4, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_4, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~i~0] 5#L16-2true [2020-06-22 02:33:12,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:12,988 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2020-06-22 02:33:12,990 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:33:12,991 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:33:13,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:33:13,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:13,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1987, now seen corresponding path program 1 times [2020-06-22 02:33:13,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:33:13,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:33:13,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:33:13,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:13,080 INFO L82 PathProgramCache]: Analyzing trace with hash 53881, now seen corresponding path program 1 times [2020-06-22 02:33:13,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:33:13,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:33:13,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:33:13,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,134 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:33:13,135 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:33:13,136 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:33:13,136 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:33:13,136 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:33:13,136 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:33:13,136 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:33:13,136 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:33:13,137 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:33:13,137 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:33:13,137 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:33:13,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,232 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:33:13,233 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 [2020-06-22 02:33:13,239 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:33:13,239 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:33:13,251 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:33:13,252 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-4, ULTIMATE.start_main_~N~0=-4} Honda state: {ULTIMATE.start_main_~j~0=-4, ULTIMATE.start_main_~N~0=-4} 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 [2020-06-22 02:33:13,284 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:33:13,284 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-22 02:33:13,316 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:33:13,316 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:33:13,349 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:33:13,351 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:33:13,351 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:33:13,352 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:33:13,352 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:33:13,352 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:33:13,352 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:33:13,352 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:33:13,352 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:33:13,352 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:33:13,352 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:33:13,353 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:33:13,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,428 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:33:13,434 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:33:13,436 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:33:13,437 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:33:13,437 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:33:13,438 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:33:13,438 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:33:13,438 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:33:13,441 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:33:13,441 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:33:13,447 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:33:13,447 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:33:13,448 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:33:13,448 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:33:13,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:33:13,448 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:33:13,449 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:33:13,449 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:33:13,450 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:33:13,456 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:33:13,460 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:33:13,460 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:33:13,462 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:33:13,462 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:33:13,463 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:33:13,463 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 02:33:13,465 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:33:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:33:13,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:33:13,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:33:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:33:13,528 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:33:13,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:33:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:33:13,570 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 02:33:13,575 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 2 loop predicates [2020-06-22 02:33:13,577 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 02:33:13,607 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 11 transitions. Complement of second has 4 states. [2020-06-22 02:33:13,608 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 [2020-06-22 02:33:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 02:33:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 02:33:13,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 02:33:13,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:33:13,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 02:33:13,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:33:13,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 02:33:13,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:33:13,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2020-06-22 02:33:13,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:33:13,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2020-06-22 02:33:13,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 02:33:13,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 02:33:13,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-06-22 02:33:13,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:33:13,628 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-06-22 02:33:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-06-22 02:33:13,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-06-22 02:33:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 02:33:13,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 02:33:13,658 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 02:33:13,658 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 02:33:13,658 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:33:13,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-06-22 02:33:13,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:33:13,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:33:13,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:33:13,659 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 02:33:13,659 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:33:13,660 INFO L794 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRY [24] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~N~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~i~0_1 v_ULTIMATE.start_main_~N~0_1)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0] 50#L16-2 [32] L16-2-->L16: Formula: (< 0 v_ULTIMATE.start_main_~i~0_5) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 44#L16 [2020-06-22 02:33:13,660 INFO L796 eck$LassoCheckResult]: Loop: 44#L16 [25] L16-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_5 (+ v_ULTIMATE.start_main_~j~0_4 1)) (< 0 v_ULTIMATE.start_main_~j~0_5)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_4, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 45#L16-2 [32] L16-2-->L16: Formula: (< 0 v_ULTIMATE.start_main_~i~0_5) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5} AuxVars[] AssignedVars[] 44#L16 [2020-06-22 02:33:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:13,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1737, now seen corresponding path program 1 times [2020-06-22 02:33:13,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:33:13,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:33:13,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:33:13,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:13,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1768, now seen corresponding path program 1 times [2020-06-22 02:33:13,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:33:13,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:33:13,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:33:13,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:13,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1670064, now seen corresponding path program 1 times [2020-06-22 02:33:13,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:33:13,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:33:13,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:33:13,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:33:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:33:13,697 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:33:13,697 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:33:13,697 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:33:13,697 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:33:13,697 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:33:13,698 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:33:13,698 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:33:13,698 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:33:13,698 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:33:13,698 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:33:13,698 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:33:13,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,737 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:33:13,737 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2020-06-22 02:33:13,741 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:33:13,741 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:33:13,768 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:33:13,768 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=1} Honda state: {ULTIMATE.start_main_~i~0=1} 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 [2020-06-22 02:33:13,773 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:33:13,774 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2020-06-22 02:33:13,806 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:33:13,806 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:33:13,836 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:33:13,839 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:33:13,839 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:33:13,839 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:33:13,839 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:33:13,839 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:33:13,839 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:33:13,840 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:33:13,840 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:33:13,840 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:33:13,840 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:33:13,840 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:33:13,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:33:13,872 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:33:13,872 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:33:13,872 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:33:13,873 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:33:13,873 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:33:13,873 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:33:13,873 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:33:13,874 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:33:13,874 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:33:13,874 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:33:13,876 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:33:13,876 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:33:13,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:33:13,877 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:33:13,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:33:13,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:33:13,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:33:13,878 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:33:13,878 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:33:13,883 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:33:13,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:33:13,886 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:33:13,886 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:33:13,886 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:33:13,886 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:33:13,886 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-06-22 02:33:13,887 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:33:13,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:33:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:33:13,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:33:13,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:33:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:33:13,916 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:33:13,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:33:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 02:33:13,949 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:33:13,949 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 [2020-06-22 02:33:13,950 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 02:33:13,960 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2020-06-22 02:33:13,961 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 [2020-06-22 02:33:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 02:33:13,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 02:33:13,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 02:33:13,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:33:13,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 02:33:13,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:33:13,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 02:33:13,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:33:13,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2020-06-22 02:33:13,966 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:33:13,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 02:33:13,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:33:13,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:33:13,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:33:13,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:33:13,966 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:33:13,966 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:33:13,967 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:33:13,967 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 02:33:13,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:33:13,967 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:33:13,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:33:13,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:33:13 BasicIcfg [2020-06-22 02:33:13,973 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:33:13,974 INFO L168 Benchmark]: Toolchain (without parser) took 1855.93 ms. Allocated memory was 514.9 MB in the beginning and 559.9 MB in the end (delta: 45.1 MB). Free memory was 436.9 MB in the beginning and 403.1 MB in the end (delta: 33.8 MB). Peak memory consumption was 78.9 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,976 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:33:13,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.46 ms. Allocated memory was 514.9 MB in the beginning and 559.9 MB in the end (delta: 45.1 MB). Free memory was 436.3 MB in the beginning and 531.4 MB in the end (delta: -95.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.31 ms. Allocated memory is still 559.9 MB. Free memory was 531.4 MB in the beginning and 529.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,977 INFO L168 Benchmark]: Boogie Preprocessor took 20.95 ms. Allocated memory is still 559.9 MB. Free memory was 529.6 MB in the beginning and 528.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,978 INFO L168 Benchmark]: RCFGBuilder took 208.96 ms. Allocated memory is still 559.9 MB. Free memory was 528.2 MB in the beginning and 517.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,978 INFO L168 Benchmark]: BlockEncodingV2 took 84.42 ms. Allocated memory is still 559.9 MB. Free memory was 517.7 MB in the beginning and 512.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,979 INFO L168 Benchmark]: TraceAbstraction took 152.43 ms. Allocated memory is still 559.9 MB. Free memory was 512.4 MB in the beginning and 503.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,980 INFO L168 Benchmark]: BuchiAutomizer took 1064.18 ms. Allocated memory is still 559.9 MB. Free memory was 503.0 MB in the beginning and 403.1 MB in the end (delta: 99.9 MB). Peak memory consumption was 99.9 MB. Max. memory is 50.3 GB. [2020-06-22 02:33:13,984 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 282.46 ms. Allocated memory was 514.9 MB in the beginning and 559.9 MB in the end (delta: 45.1 MB). Free memory was 436.3 MB in the beginning and 531.4 MB in the end (delta: -95.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 37.31 ms. Allocated memory is still 559.9 MB. Free memory was 531.4 MB in the beginning and 529.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.95 ms. Allocated memory is still 559.9 MB. Free memory was 529.6 MB in the beginning and 528.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 208.96 ms. Allocated memory is still 559.9 MB. Free memory was 528.2 MB in the beginning and 517.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 84.42 ms. Allocated memory is still 559.9 MB. Free memory was 517.7 MB in the beginning and 512.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.43 ms. Allocated memory is still 559.9 MB. Free memory was 512.4 MB in the beginning and 503.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1064.18 ms. Allocated memory is still 559.9 MB. Free memory was 503.0 MB in the beginning and 403.1 MB in the end (delta: 99.9 MB). Peak memory consumption was 99.9 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: 15]: 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 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 12 SDslu, 4 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - 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 2020-06-22 02:33:14.230 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check