YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:23:27,826 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:23:27,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:23:27,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:23:27,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:23:27,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:23:27,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:23:27,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:23:27,844 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:23:27,845 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:23:27,845 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:23:27,846 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:23:27,847 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:23:27,847 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:23:27,848 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:23:27,849 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:23:27,850 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:23:27,852 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:23:27,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:23:27,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:23:27,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:23:27,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:23:27,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:23:27,859 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:23:27,860 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:23:27,860 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:23:27,861 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:23:27,862 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:23:27,862 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:23:27,863 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:23:27,863 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:23:27,864 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:23:27,865 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:23:27,865 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:23:27,866 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:23:27,866 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:23:27,866 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:23:27,867 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:23:27,868 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:23:27,868 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 02:23:27,882 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:23:27,882 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:23:27,884 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:23:27,884 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:23:27,884 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:23:27,884 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:23:27,884 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:23:27,884 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:23:27,885 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:23:27,885 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:23:27,885 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:23:27,885 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:23:27,885 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:23:27,885 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:23:27,886 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:27,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:23:27,886 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:23:27,886 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:23:27,886 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:23:27,887 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:23:27,887 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:23:27,887 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:23:27,887 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:23:27,887 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:23:27,887 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:23:27,888 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:23:27,888 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:23:27,888 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:23:27,888 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:23:27,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:23:27,927 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:23:27,930 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:23:27,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:23:27,932 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:23:27,933 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:23:28,001 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/716a25b0d749443c9a2e5b8acb66e87e/FLAGcd13338dc !SESSION 2020-06-22 02:23:25.247 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 02:23:28.261 !MESSAGE Indexed 'FLAGcd13338dc' (0 sources, 0 headers) in 0.007 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 02:23:28,345 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:23:28,345 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 02:23:28,352 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/716a25b0d749443c9a2e5b8acb66e87e/FLAGcd13338dc [2020-06-22 02:23:28,781 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/716a25b0d749443c9a2e5b8acb66e87e [2020-06-22 02:23:28,792 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:23:28,794 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:23:28,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:23:28,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:23:28,799 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:23:28,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:23:28" (1/1) ... [2020-06-22 02:23:28,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cf3e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:28, skipping insertion in model container [2020-06-22 02:23:28,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:23:28" (1/1) ... [2020-06-22 02:23:28,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:23:28,827 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:23:28,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:23:28,982 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:23:29,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:23:29,064 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:23:29,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29 WrapperNode [2020-06-22 02:23:29,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:23:29,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:23:29,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:23:29,066 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:23:29,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:23:29,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:23:29,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:23:29,100 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:23:29,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:23:29,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:23:29,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:23:29,119 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:23:29,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:23:29,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:23:29,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:23:29,308 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:23:29,309 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 02:23:29,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:23:29 BoogieIcfgContainer [2020-06-22 02:23:29,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:23:29,311 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:23:29,311 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:23:29,313 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:23:29,314 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:23:29" (1/1) ... [2020-06-22 02:23:29,328 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 02:23:29,330 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:23:29,330 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:23:29,331 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:23:29,331 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:23:29,333 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:23:29,334 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:23:29,334 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:23:29,348 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:23:29,355 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 02:23:29,360 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 02:23:29,362 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:23:29,375 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 02:23:29,377 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 02:23:29,378 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:23:29,378 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:23:29,379 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:23:29,379 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:23:29,379 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 02:23:29,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:23:29 BasicIcfg [2020-06-22 02:23:29,380 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:23:29,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:23:29,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:23:29,384 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:23:29,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:23:28" (1/4) ... [2020-06-22 02:23:29,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7039baac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:23:29, skipping insertion in model container [2020-06-22 02:23:29,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (2/4) ... [2020-06-22 02:23:29,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7039baac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:23:29, skipping insertion in model container [2020-06-22 02:23:29,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:23:29" (3/4) ... [2020-06-22 02:23:29,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7039baac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:23:29, skipping insertion in model container [2020-06-22 02:23:29,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:23:29" (4/4) ... [2020-06-22 02:23:29,388 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:23:29,398 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:23:29,405 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:23:29,422 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:23:29,450 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:23:29,451 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:23:29,451 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:23:29,451 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:23:29,451 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:23:29,451 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:23:29,452 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:23:29,452 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:23:29,452 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:23:29,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 02:23:29,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:23:29,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 02:23:29,522 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-06-22 02:23:29,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:23:29,522 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 13 19) the Hoare annotation is: true [2020-06-22 02:23:29,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:23:29 BasicIcfg [2020-06-22 02:23:29,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:23:29,531 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:23:29,531 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:23:29,534 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:23:29,535 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:23:29,535 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:23:28" (1/5) ... [2020-06-22 02:23:29,536 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f9a7c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:23:29, skipping insertion in model container [2020-06-22 02:23:29,536 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:23:29,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:23:29" (2/5) ... [2020-06-22 02:23:29,536 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f9a7c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:23:29, skipping insertion in model container [2020-06-22 02:23:29,537 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:23:29,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:23:29" (3/5) ... [2020-06-22 02:23:29,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f9a7c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:23:29, skipping insertion in model container [2020-06-22 02:23:29,537 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:23:29,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:23:29" (4/5) ... [2020-06-22 02:23:29,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f9a7c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:23:29, skipping insertion in model container [2020-06-22 02:23:29,538 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:23:29,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:23:29" (5/5) ... [2020-06-22 02:23:29,539 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:23:29,566 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:23:29,566 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:23:29,566 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:23:29,566 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:23:29,567 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:23:29,567 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:23:29,567 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:23:29,567 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:23:29,567 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:23:29,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 02:23:29,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:23:29,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:23:29,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:23:29,594 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:23:29,594 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:23:29,594 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:23:29,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 02:23:29,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:23:29,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:23:29,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:23:29,595 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:23:29,595 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:23:29,600 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L14-2true [2020-06-22 02:23:29,601 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L14true [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 4#L14-2true [2020-06-22 02:23:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:29,607 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-06-22 02:23:29,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:29,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:29,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:29,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:23:29,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:29,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:29,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 1 times [2020-06-22 02:23:29,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:29,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:29,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:29,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:23:29,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:29,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:29,693 INFO L82 PathProgramCache]: Analyzing trace with hash 54749, now seen corresponding path program 1 times [2020-06-22 02:23:29,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:29,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:29,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:29,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:23:29,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:29,750 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:23:29,751 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:23:29,751 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:23:29,751 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:23:29,752 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:23:29,752 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:29,752 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:23:29,752 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:23:29,752 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:23:29,752 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:23:29,753 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:23:29,772 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 02:23:29,781 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 02:23:29,786 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 02:23:29,869 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:23:29,870 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:29,878 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:29,878 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:29,911 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:23:29,911 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:29,917 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:29,917 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:29,945 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:23:29,945 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:29,950 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:29,950 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:29,986 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:23:29,986 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:30,261 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:23:30,263 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:23:30,264 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:23:30,264 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:23:30,264 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:23:30,264 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:23:30,264 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:23:30,264 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:23:30,264 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:23:30,264 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:23:30,265 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:23:30,265 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:23:30,267 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 02:23:30,272 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 02:23:30,276 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 02:23:30,346 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:23:30,352 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:23:30,354 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 02:23:30,355 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:23:30,363 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:23:30,363 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:23:30,363 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:23:30,368 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:23:30,369 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:23:30,378 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:23:30,378 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 02:23:30,379 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:23:30,379 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:23:30,379 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:23:30,380 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:23:30,382 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:23:30,382 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:23:30,391 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:23:30,392 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 02:23:30,393 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:23:30,393 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:23:30,394 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:23:30,394 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:23:30,394 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:23:30,395 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:23:30,395 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:23:30,403 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:23:30,411 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:23:30,411 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 02:23:30,413 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:23:30,414 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:23:30,414 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:23:30,414 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 02:23:30,416 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:23:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:23:30,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:23:30,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:23:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:23:30,473 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:23:30,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:23:30,476 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 02:23:30,489 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 02:23:30,494 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 02:23:30,495 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 02:23:30,525 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-06-22 02:23:30,526 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 02:23:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 02:23:30,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 02:23:30,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 02:23:30,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:30,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 02:23:30,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:30,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 02:23:30,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:30,538 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 02:23:30,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:23:30,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 02:23:30,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 02:23:30,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 02:23:30,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-06-22 02:23:30,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:23:30,545 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 02:23:30,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-06-22 02:23:30,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-06-22 02:23:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 02:23:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 02:23:30,573 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 02:23:30,573 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 02:23:30,573 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:23:30,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-06-22 02:23:30,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 02:23:30,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:23:30,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:23:30,574 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 02:23:30,574 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:23:30,575 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 42#L14-2 [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 47#L14 [31] L14-->L14-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 43#L14-2 [2020-06-22 02:23:30,575 INFO L796 eck$LassoCheckResult]: Loop: 43#L14-2 [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 44#L14 [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 1)) (>= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~z~0_8)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~z~0] 43#L14-2 [2020-06-22 02:23:30,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:30,576 INFO L82 PathProgramCache]: Analyzing trace with hash 54746, now seen corresponding path program 1 times [2020-06-22 02:23:30,576 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:30,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:30,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:30,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:23:30,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:30,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:30,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1894, now seen corresponding path program 2 times [2020-06-22 02:23:30,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:30,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:30,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:30,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:23:30,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:30,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:30,595 INFO L82 PathProgramCache]: Analyzing trace with hash 52611839, now seen corresponding path program 1 times [2020-06-22 02:23:30,595 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:30,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:30,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:30,596 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:23:30,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:30,621 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:23:30,621 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:23:30,622 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:23:30,622 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:23:30,622 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:23:30,622 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:30,622 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:23:30,622 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:23:30,622 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:23:30,622 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:23:30,623 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:23:30,624 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 02:23:30,627 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 02:23:30,630 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 02:23:30,681 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:23:30,681 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:30,684 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:30,684 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:30,711 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:23:30,711 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:30,716 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:30,716 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:30,743 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:23:30,743 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:30,748 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:30,749 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:30,779 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:23:30,780 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:31,079 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:23:31,082 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:23:31,082 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:23:31,082 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:23:31,082 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:23:31,082 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:23:31,083 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:23:31,083 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:23:31,083 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:23:31,083 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:23:31,083 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:23:31,083 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:23:31,085 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 02:23:31,089 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 02:23:31,096 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 02:23:31,139 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:23:31,139 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:23:31,139 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 02:23:31,140 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:23:31,141 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:23:31,141 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:23:31,141 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:23:31,143 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 02:23:31,143 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 02:23:31,147 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 02:23:31,148 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 02:23:31,160 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:23:31,160 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:23:31,160 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:23:31,160 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:23:31,160 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:23:31,162 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:23:31,162 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:23:31,169 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:23:31,174 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:23:31,174 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 02:23:31,175 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:23:31,175 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:23:31,175 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:23:31,175 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2020-06-22 02:23:31,176 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:23:31,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:23:31,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:23:31,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:23:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:23:31,209 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:23:31,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:23:31,210 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 02:23:31,210 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 02:23:31,210 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 02:23:31,211 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 02:23:31,225 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. [2020-06-22 02:23:31,225 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 02:23:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 02:23:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 02:23:31,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 02:23:31,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:31,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 02:23:31,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:31,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 02:23:31,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:31,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-06-22 02:23:31,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 02:23:31,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-06-22 02:23:31,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 02:23:31,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 02:23:31,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-06-22 02:23:31,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:23:31,231 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-06-22 02:23:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-06-22 02:23:31,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-06-22 02:23:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 02:23:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-06-22 02:23:31,232 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-06-22 02:23:31,232 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-06-22 02:23:31,232 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 02:23:31,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-06-22 02:23:31,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 02:23:31,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:23:31,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:23:31,233 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:23:31,233 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 02:23:31,234 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 92#L14-2 [2020-06-22 02:23:31,234 INFO L796 eck$LassoCheckResult]: Loop: 92#L14-2 [29] L14-2-->L14: Formula: (< v_ULTIMATE.start_main_~x~0_7 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 94#L14 [31] L14-->L14-2: Formula: (and (< v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~z~0_6) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 92#L14-2 [2020-06-22 02:23:31,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:31,234 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-06-22 02:23:31,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:31,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:31,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:31,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:23:31,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:31,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-06-22 02:23:31,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:31,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:31,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:31,242 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:23:31,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:31,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:31,247 INFO L82 PathProgramCache]: Analyzing trace with hash 54746, now seen corresponding path program 2 times [2020-06-22 02:23:31,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:23:31,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:23:31,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:31,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:23:31,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:23:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:23:31,269 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:23:31,270 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:23:31,270 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:23:31,270 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:23:31,270 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:23:31,270 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:31,270 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:23:31,270 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:23:31,270 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:23:31,270 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:23:31,271 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:23:31,272 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 02:23:31,275 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 02:23:31,284 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 02:23:31,330 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:23:31,330 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:31,339 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:31,339 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:31,367 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:23:31,368 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:31,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:23:31,377 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:23:31,414 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:23:31,415 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:23:31,607 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:23:31,609 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:23:31,610 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:23:31,610 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:23:31,610 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:23:31,610 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:23:31,610 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:23:31,610 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:23:31,610 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:23:31,611 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 02:23:31,611 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:23:31,611 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:23:31,612 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 02:23:31,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:23:31,624 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 02:23:31,664 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:23:31,665 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:23:31,665 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 02:23:31,666 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:23:31,666 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:23:31,666 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:23:31,666 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:23:31,666 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:23:31,667 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:23:31,667 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:23:31,672 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:23:31,678 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 02:23:31,678 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:23:31,679 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:23:31,679 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:23:31,679 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:23:31,679 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 02:23:31,679 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:23:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:23:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:23:31,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:23:31,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:23:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:23:31,709 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:23:31,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:23:31,721 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 02:23:31,734 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 02:23:31,735 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 02:23:31,735 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-06-22 02:23:31,752 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2020-06-22 02:23:31,753 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 02:23:31,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 02:23:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-06-22 02:23:31,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 02:23:31,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:31,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 02:23:31,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:31,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 02:23:31,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:23:31,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2020-06-22 02:23:31,757 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:23:31,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 02:23:31,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:23:31,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:23:31,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:23:31,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:23:31,757 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:23:31,757 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:23:31,758 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:23:31,758 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 02:23:31,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:23:31,758 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:23:31,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:23:31,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:23:31 BasicIcfg [2020-06-22 02:23:31,764 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:23:31,764 INFO L168 Benchmark]: Toolchain (without parser) took 2971.62 ms. Allocated memory was 514.9 MB in the beginning and 580.9 MB in the end (delta: 66.1 MB). Free memory was 440.1 MB in the beginning and 480.0 MB in the end (delta: -39.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,766 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 460.1 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:23:31,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.03 ms. Allocated memory was 514.9 MB in the beginning and 552.1 MB in the end (delta: 37.2 MB). Free memory was 439.4 MB in the beginning and 521.9 MB in the end (delta: -82.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.59 ms. Allocated memory is still 552.1 MB. Free memory was 521.2 MB in the beginning and 519.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,768 INFO L168 Benchmark]: Boogie Preprocessor took 18.71 ms. Allocated memory is still 552.1 MB. Free memory was 519.9 MB in the beginning and 517.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,768 INFO L168 Benchmark]: RCFGBuilder took 191.89 ms. Allocated memory is still 552.1 MB. Free memory was 517.6 MB in the beginning and 507.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,769 INFO L168 Benchmark]: BlockEncodingV2 took 69.19 ms. Allocated memory is still 552.1 MB. Free memory was 506.8 MB in the beginning and 502.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,770 INFO L168 Benchmark]: TraceAbstraction took 149.32 ms. Allocated memory is still 552.1 MB. Free memory was 502.1 MB in the beginning and 493.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,770 INFO L168 Benchmark]: BuchiAutomizer took 2233.28 ms. Allocated memory was 552.1 MB in the beginning and 580.9 MB in the end (delta: 28.8 MB). Free memory was 493.2 MB in the beginning and 480.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 42.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:23:31,775 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 460.1 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 270.03 ms. Allocated memory was 514.9 MB in the beginning and 552.1 MB in the end (delta: 37.2 MB). Free memory was 439.4 MB in the beginning and 521.9 MB in the end (delta: -82.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.59 ms. Allocated memory is still 552.1 MB. Free memory was 521.2 MB in the beginning and 519.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.71 ms. Allocated memory is still 552.1 MB. Free memory was 519.9 MB in the beginning and 517.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 191.89 ms. Allocated memory is still 552.1 MB. Free memory was 517.6 MB in the beginning and 507.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.19 ms. Allocated memory is still 552.1 MB. Free memory was 506.8 MB in the beginning and 502.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 149.32 ms. Allocated memory is still 552.1 MB. Free memory was 502.1 MB in the beginning and 493.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2233.28 ms. Allocated memory was 552.1 MB in the beginning and 580.9 MB in the end (delta: 28.8 MB). Free memory was 493.2 MB in the beginning and 480.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 42.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - 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 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 17 SDslu, 0 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - 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 02:23:32.003 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check