YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 11:33:56,285 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 11:33:56,287 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 11:33:56,299 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 11:33:56,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 11:33:56,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 11:33:56,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 11:33:56,303 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 11:33:56,304 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 11:33:56,305 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 11:33:56,306 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 11:33:56,306 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 11:33:56,307 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 11:33:56,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 11:33:56,309 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 11:33:56,310 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 11:33:56,311 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 11:33:56,313 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 11:33:56,316 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 11:33:56,317 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 11:33:56,318 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 11:33:56,319 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 11:33:56,322 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 11:33:56,322 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 11:33:56,322 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 11:33:56,323 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 11:33:56,323 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 11:33:56,324 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 11:33:56,324 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 11:33:56,325 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 11:33:56,326 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 11:33:56,327 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 11:33:56,327 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 11:33:56,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 11:33:56,328 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 11:33:56,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 11:33:56,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 11:33:56,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 11:33:56,330 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 11:33:56,331 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 11:33:56,345 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 11:33:56,346 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 11:33:56,347 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 11:33:56,347 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 11:33:56,347 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 11:33:56,348 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:33:56,348 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 11:33:56,348 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 11:33:56,348 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 11:33:56,348 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 11:33:56,348 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 11:33:56,349 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 11:33:56,349 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 11:33:56,349 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 11:33:56,349 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:33:56,349 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 11:33:56,350 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 11:33:56,350 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 11:33:56,350 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 11:33:56,350 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 11:33:56,350 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 11:33:56,351 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 11:33:56,351 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 11:33:56,351 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 11:33:56,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 11:33:56,351 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 11:33:56,351 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 11:33:56,352 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 11:33:56,352 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 11:33:56,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 11:33:56,391 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 11:33:56,395 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 11:33:56,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 11:33:56,397 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 11:33:56,398 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 11:33:56,474 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/0b812451dbef41be929831d849c2c6ba/FLAGf6014a7c1 !SESSION 2020-06-22 11:33:53.325 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 11:33:56.752 !MESSAGE Indexed 'FLAGf6014a7c1' (0 sources, 0 headers) in 0.006 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 11:33:56,823 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 11:33:56,823 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 11:33:56,830 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/0b812451dbef41be929831d849c2c6ba/FLAGf6014a7c1 [2020-06-22 11:33:57,287 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/0b812451dbef41be929831d849c2c6ba [2020-06-22 11:33:57,298 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 11:33:57,300 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 11:33:57,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 11:33:57,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 11:33:57,304 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 11:33:57,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f78e827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57, skipping insertion in model container [2020-06-22 11:33:57,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 11:33:57,334 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 11:33:57,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:33:57,491 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 11:33:57,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 11:33:57,580 INFO L195 MainTranslator]: Completed translation [2020-06-22 11:33:57,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57 WrapperNode [2020-06-22 11:33:57,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 11:33:57,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 11:33:57,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 11:33:57,582 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 11:33:57,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 11:33:57,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 11:33:57,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 11:33:57,616 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 11:33:57,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 11:33:57,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 11:33:57,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 11:33:57,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 11:33:57,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (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 [2020-06-22 11:33:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 11:33:57,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 11:33:57,837 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 11:33:57,837 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 11:33:57,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:57 BoogieIcfgContainer [2020-06-22 11:33:57,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 11:33:57,839 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 11:33:57,839 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 11:33:57,841 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 11:33:57,842 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:57" (1/1) ... [2020-06-22 11:33:57,856 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 10 edges [2020-06-22 11:33:57,858 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 11:33:57,858 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 11:33:57,859 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 11:33:57,859 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 11:33:57,861 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 11:33:57,862 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 11:33:57,862 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 11:33:57,876 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 11:33:57,883 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 11:33:57,887 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 11:33:57,889 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:33:57,906 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 11:33:57,908 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 11:33:57,909 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 11:33:57,910 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 11:33:57,910 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 11:33:57,910 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 11:33:57,910 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 11:33:57,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:33:57 BasicIcfg [2020-06-22 11:33:57,911 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 11:33:57,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 11:33:57,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 11:33:57,915 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 11:33:57,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 11:33:57" (1/4) ... [2020-06-22 11:33:57,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cb283b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:33:57, skipping insertion in model container [2020-06-22 11:33:57,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (2/4) ... [2020-06-22 11:33:57,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cb283b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:33:57, skipping insertion in model container [2020-06-22 11:33:57,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:57" (3/4) ... [2020-06-22 11:33:57,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cb283b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:33:57, skipping insertion in model container [2020-06-22 11:33:57,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:33:57" (4/4) ... [2020-06-22 11:33:57,919 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:33:57,929 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 11:33:57,938 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 11:33:57,955 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 11:33:57,983 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:33:57,984 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 11:33:57,984 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 11:33:57,984 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:33:57,984 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:33:57,985 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:33:57,985 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 11:33:57,985 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:33:57,985 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 11:33:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 11:33:58,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 11:33:58,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 11:33:58,055 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 22) the Hoare annotation is: true [2020-06-22 11:33:58,056 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 11:33:58,056 INFO L448 ceAbstractionStarter]: For program point L23-1(lines 13 28) no Hoare annotation was computed. [2020-06-22 11:33:58,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:33:58 BasicIcfg [2020-06-22 11:33:58,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 11:33:58,064 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 11:33:58,065 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 11:33:58,068 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 11:33:58,068 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:33:58,069 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 11:33:57" (1/5) ... [2020-06-22 11:33:58,069 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b33b218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:33:58, skipping insertion in model container [2020-06-22 11:33:58,069 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:33:58,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 11:33:57" (2/5) ... [2020-06-22 11:33:58,070 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b33b218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 11:33:58, skipping insertion in model container [2020-06-22 11:33:58,070 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:33:58,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:57" (3/5) ... [2020-06-22 11:33:58,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b33b218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:33:58, skipping insertion in model container [2020-06-22 11:33:58,071 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:33:58,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 11:33:57" (4/5) ... [2020-06-22 11:33:58,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b33b218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:33:58, skipping insertion in model container [2020-06-22 11:33:58,071 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 11:33:58,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:33:58" (5/5) ... [2020-06-22 11:33:58,073 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 11:33:58,099 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 11:33:58,100 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 11:33:58,100 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 11:33:58,100 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 11:33:58,100 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 11:33:58,100 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 11:33:58,100 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 11:33:58,100 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 11:33:58,100 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 11:33:58,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 11:33:58,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-06-22 11:33:58,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:33:58,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:33:58,126 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:33:58,126 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 11:33:58,126 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 11:33:58,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 11:33:58,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-06-22 11:33:58,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:33:58,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:33:58,127 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 11:33:58,128 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 11:33:58,133 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [30] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 5#L19-2true [2020-06-22 11:33:58,133 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-2true [37] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 1)) (< v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~n~0_7) (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1))) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 5#L19-2true [2020-06-22 11:33:58,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:58,139 INFO L82 PathProgramCache]: Analyzing trace with hash 61, now seen corresponding path program 1 times [2020-06-22 11:33:58,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:33:58,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:33:58,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:33:58,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:58,212 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-06-22 11:33:58,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:33:58,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:33:58,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:33:58,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:58,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1928, now seen corresponding path program 1 times [2020-06-22 11:33:58,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:33:58,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:33:58,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:33:58,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,283 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:33:58,284 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:33:58,284 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:33:58,285 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:33:58,285 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:33:58,285 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:33:58,285 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:33:58,285 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:33:58,285 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:33:58,286 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:33:58,286 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:33:58,306 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 11:33:58,320 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 11:33:58,325 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 11:33:58,338 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 11:33:58,449 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:33:58,450 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 11:33:58,455 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:33:58,455 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 11:33:58,490 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:33:58,490 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:33:58,705 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:33:58,708 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:33:58,708 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:33:58,709 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:33:58,709 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:33:58,709 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:33:58,709 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:33:58,709 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:33:58,709 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:33:58,709 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 11:33:58,709 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:33:58,709 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:33:58,712 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 11:33:58,720 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 11:33:58,724 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 11:33:58,728 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 11:33:58,797 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:33:58,803 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:33:58,805 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 11:33:58,806 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:33:58,806 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:33:58,807 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:33:58,807 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:33:58,807 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:33:58,809 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:33:58,810 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:33:58,818 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:33:58,827 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:33:58,827 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:33:58,829 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:33:58,829 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:33:58,830 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:33:58,831 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 11:33:58,832 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:33:58,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:33:58,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:33:58,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:33:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:33:58,882 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:33:58,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:33:58,883 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 11:33:58,895 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 11:33:58,900 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 11:33:58,901 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 2 states. [2020-06-22 11:33:58,928 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 2 states. Result 6 states and 10 transitions. Complement of second has 4 states. [2020-06-22 11:33:58,928 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 11:33:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 11:33:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 11:33:58,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 11:33:58,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:33:58,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 11:33:58,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:33:58,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 11:33:58,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:33:58,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 10 transitions. [2020-06-22 11:33:58,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 11:33:58,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 7 transitions. [2020-06-22 11:33:58,946 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 11:33:58,946 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 11:33:58,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2020-06-22 11:33:58,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:33:58,947 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-06-22 11:33:58,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2020-06-22 11:33:58,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-06-22 11:33:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 11:33:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-06-22 11:33:58,976 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 11:33:58,976 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 11:33:58,976 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 11:33:58,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-06-22 11:33:58,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 11:33:58,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 11:33:58,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 11:33:58,978 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 11:33:58,978 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 11:33:58,978 INFO L794 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~m~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~n~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 38#L19-2 [39] L19-2-->L23-1: Formula: (>= v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~n~0_6) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 39#L23-1 [2020-06-22 11:33:58,978 INFO L796 eck$LassoCheckResult]: Loop: 39#L23-1 [34] L23-1-->L23-1: Formula: (and (< v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~m~0_7) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 1)) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 39#L23-1 [2020-06-22 11:33:58,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:58,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1930, now seen corresponding path program 1 times [2020-06-22 11:33:58,979 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:33:58,979 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:33:58,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:33:58,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:58,988 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 11:33:58,988 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:33:58,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:33:58,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:33:58,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:58,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:58,995 INFO L82 PathProgramCache]: Analyzing trace with hash 59864, now seen corresponding path program 1 times [2020-06-22 11:33:58,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 11:33:58,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 11:33:58,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:58,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 11:33:58,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 11:33:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 11:33:59,022 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:33:59,023 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:33:59,023 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:33:59,023 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:33:59,023 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 11:33:59,023 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 11:33:59,023 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:33:59,023 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:33:59,024 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:33:59,024 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:33:59,024 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:33:59,025 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 11:33:59,029 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 11:33:59,035 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 11:33:59,038 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 11:33:59,088 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:33:59,088 INFO L412 LassoAnalysis]: Checking for nontermination... 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 11:33:59,097 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:33:59,097 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:33:59,127 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 11:33:59,127 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 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 11:33:59,132 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 11:33:59,132 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 11:33:59,164 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 11:33:59,165 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 11:33:59,338 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 11:33:59,341 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 11:33:59,355 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 11:33:59,355 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 11:33:59,355 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 11:33:59,356 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 11:33:59,356 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 11:33:59,356 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 11:33:59,356 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 11:33:59,356 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 11:33:59,356 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 11:33:59,356 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 11:33:59,358 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 11:33:59,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 11:33:59,368 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 11:33:59,371 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 11:33:59,420 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 11:33:59,421 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 11:33:59,421 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 11:33:59,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:33:59,422 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:33:59,422 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:33:59,422 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:33:59,425 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 11:33:59,425 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 11:33:59,430 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 11:33:59,431 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 11:33:59,432 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 11:33:59,432 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 11:33:59,432 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 11:33:59,432 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 11:33:59,432 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 11:33:59,435 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 11:33:59,435 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 11:33:59,443 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 11:33:59,449 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 11:33:59,450 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 11:33:59,450 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 11:33:59,450 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 11:33:59,451 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 11:33:59,451 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 11:33:59,451 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 11:33:59,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 11:33:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:33:59,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 11:33:59,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:33:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 11:33:59,491 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 11:33:59,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 11:33:59,491 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 11:33:59,492 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 11:33:59,492 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 11:33:59,492 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-06-22 11:33:59,508 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2020-06-22 11:33:59,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 11:33:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 11:33:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-06-22 11:33:59,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 11:33:59,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:33:59,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 11:33:59,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:33:59,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 11:33:59,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 11:33:59,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2020-06-22 11:33:59,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:33:59,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-06-22 11:33:59,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 11:33:59,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 11:33:59,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 11:33:59,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 11:33:59,517 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:33:59,517 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:33:59,517 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 11:33:59,517 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 11:33:59,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 11:33:59,517 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 11:33:59,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 11:33:59,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 11:33:59 BasicIcfg [2020-06-22 11:33:59,524 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 11:33:59,525 INFO L168 Benchmark]: Toolchain (without parser) took 2225.98 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 566.3 MB in the beginning and 489.2 MB in the end (delta: 77.1 MB). Peak memory consumption was 105.9 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,527 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 11:33:59,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.46 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 565.2 MB in the beginning and 645.2 MB in the end (delta: -80.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.24 ms. Allocated memory is still 678.4 MB. Free memory was 645.2 MB in the beginning and 642.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,529 INFO L168 Benchmark]: Boogie Preprocessor took 19.12 ms. Allocated memory is still 678.4 MB. Free memory was 642.4 MB in the beginning and 641.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,530 INFO L168 Benchmark]: RCFGBuilder took 203.17 ms. Allocated memory is still 678.4 MB. Free memory was 641.3 MB in the beginning and 627.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,531 INFO L168 Benchmark]: BlockEncodingV2 took 72.09 ms. Allocated memory is still 678.4 MB. Free memory was 627.6 MB in the beginning and 622.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,531 INFO L168 Benchmark]: TraceAbstraction took 152.16 ms. Allocated memory is still 678.4 MB. Free memory was 622.1 MB in the beginning and 613.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,532 INFO L168 Benchmark]: BuchiAutomizer took 1459.71 ms. Allocated memory is still 678.4 MB. Free memory was 613.5 MB in the beginning and 489.2 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 50.3 GB. [2020-06-22 11:33:59,536 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 10 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 280.46 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 565.2 MB in the beginning and 645.2 MB in the end (delta: -80.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.24 ms. Allocated memory is still 678.4 MB. Free memory was 645.2 MB in the beginning and 642.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.12 ms. Allocated memory is still 678.4 MB. Free memory was 642.4 MB in the beginning and 641.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 203.17 ms. Allocated memory is still 678.4 MB. Free memory was 641.3 MB in the beginning and 627.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.09 ms. Allocated memory is still 678.4 MB. Free memory was 627.6 MB in the beginning and 622.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.16 ms. Allocated memory is still 678.4 MB. Free memory was 622.1 MB in the beginning and 613.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1459.71 ms. Allocated memory is still 678.4 MB. Free memory was 613.5 MB in the beginning and 489.2 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 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: 19]: 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 n + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function m + -1 * x and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. 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 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 0 SDs, 0 SdLazy, 8 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - 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 11:33:59.779 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check